Try fixing the problem

Fixes #35

.dockerignore

@@ -0,0 +1,5 @@
+src/web/static/*
+.venv
+.githooks
+.vscode
+node_modules

.drone.yml

@@ -1,14 +1,22 @@
 ---
 kind: pipeline
 type: docker
-name: build image
+name: default
 
 steps:
+- name: test
+  image: python:3.10
+  commands:
+    - python -m pip install poetry
+    - poetry install
+    - poetry env info
+    - poetry run pytest
 - name: build container
   image: plugins/docker
   settings:
     repo: registry.kucharczyk.xyz/timetracker
-    tags: latest
+    tags:
+      - latest
 trigger:
   event:
   - push

.githooks/pre-commit.disabled

@@ -0,0 +1,14 @@
+#!/bin/bash
+set -euo pipefail
+echo "----------------"
+echo "Pre-commit hooks"
+echo "================"
+BASE_VERSION_NUMBER=$(git describe --tags --abbrev=0)
+FULL_VERSION_NUMBER=$(git describe --tags)
+echo "Updating "VERSION_NUMBER" in Dockerfile to $FULL_VERSION_NUMBER"
+sed -i "s/^ENV VERSION_NUMBER.*$/ENV VERSION_NUMBER ${FULL_VERSION_NUMBER}/" Dockerfile
+echo "Updating "version" in pyproject.toml to $BASE_VERSION_NUMBER"
+sed -i "s/^version = \".*\"$/version = \"${BASE_VERSION_NUMBER}\"/" pyproject.toml
+git add Dockerfile
+git add pyproject.toml
+echo "----------------"

.gitignore

@@ -1,5 +1,8 @@
 __pycache__
+.mypy_cache
+.pytest_cache
 .venv
 node_modules
 package-lock.json
 db.sqlite3
+src/web/static

.vscode/settings.json

@@ -0,0 +1,8 @@
+{
+    "python.testing.pytestArgs": [
+        "tests"
+    ],
+    "python.testing.unittestEnabled": false,
+    "python.testing.pytestEnabled": true,
+    "python.analysis.typeCheckingMode": "basic"
+}

CHANGELOG.md

@@ -0,0 +1,68 @@
+## Unreleased
+
+* New
+  * When adding session, pre-select game with the last session
+  * Date and time input fields now have proper pickers
+
+## 0.2.4 / 2023-01-16 19:39+01:00
+
+* Fixed
+  * When filtering by game, the "Filtering by (...)" text would erroneously list an unrelated platform
+  * Playtime graph would display timeline backwards
+  * Playtime graph with many dates would overlap (https://git.kucharczyk.xyz/lukas/timetracker/issues/34)
+  * Manually added times (= without end timestamp) would make graphs look ugly and noisy (https://git.kucharczyk.xyz/lukas/timetracker/issues/35)
+
+## 0.2.3 / 2023-01-15 23:13+01:00
+
+* Allow filtering by platform and game on session list (https://git.kucharczyk.xyz/lukas/timetracker/issues/32)
+* Order session by newest as preparation for https://git.kucharczyk.xyz/lukas/timetracker/issues/33
+
+## 0.2.2 / 2023-01-15 17:59+01:00
+
+* Display playtime graph on session list (https://git.kucharczyk.xyz/lukas/timetracker/issues/29)
+* Fix error when showing session list with no sessions (https://git.kucharczyk.xyz/lukas/timetracker/issues/31)
+
+## 0.2.1 / 2023-01-13 16:53+01:00
+
+* List number of sessions when filtering on session list
+* Start sessions of last purchase from list (https://git.kucharczyk.xyz/lukas/timetracker/issues/19)
+
+## 0.2.0 / 2023-01-09 22:42+01:00
+
+* Show playtime total on session list (https://git.kucharczyk.xyz/lukas/timetracker/issues/6)
+* Make formatting durations more robust, change default duration display to "X hours" (https://git.kucharczyk.xyz/lukas/timetracker/issues/26)
+
+## 0.1.4 / 2023-01-08 15:45+01:00
+
+* Fix collectstaticfiles causing error when restarting container (https://git.kucharczyk.xyz/lukas/timetracker/issues/23)
+
+## 0.1.3 / 2023-01-08 15:23+01:00
+
+* Fix CSRF error (https://git.kucharczyk.xyz/lukas/timetracker/pulls/22)
+
+## 0.1.2 / 2023-01-07 22:05+01:00
+
+* Switch to Uvicorn/Gunicorn + Caddy (https://git.kucharczyk.xyz/lukas/timetracker/pulls/4)
+
+## 0.1.1 / 2023-01-05 23:26+01:00
+* Order by timestamp_start by default
+* Add pre-commit hook to update version
+* Improve the newcomer experience by guiding through each step
+* Fix errors with empty database
+* Fix negative playtimes being considered positive
+* Add %d for days to common.util.time.format_duration
+* Set up tests, add tests for common.util.time
+* Display total hours played on homepage
+* Add format_duration to common.util.time
+* Allow deleting sessions
+* Redirect after adding game/platform/purchase/session
+* Fix display of duration_manual
+* Fix display of duration_calculated, display durations less than a minute
+* Make the "Finish now?" button on session list work
+* Hide navigation bar items if there are no games/purchases/sessions
+* Set default version to "git-main" to indicate development environment
+* Add homepage, link to it from the logo
+* Make it possible to add a new platform
+* Save calculated duration to database if both timestamps are set
+* Improve session listing
+* Set version in the footer to fixed, fix main container height

Caddyfile

@@ -0,0 +1,14 @@
+{
+    auto_https off
+    admin off
+}
+
+:8000 {
+    handle_path /static/* {
+        root * src/web/static/
+        file_server
+    }
+    handle {
+        reverse_proxy :8001
+    }
+}

Dockerfile

@@ -1,15 +1,39 @@
-FROM python:3.10-slim-bullseye
-ENV VIRTUAL_ENV=/opt/venv
-RUN python3 -m venv pip $VIRTUAL_ENV
-ENV PATH="$VIRTUAL_ENV/bin:$PATH"
-RUN pip install --no-cache-dir poetry
-RUN useradd --create-home --uid 1000 timetracker
+FROM node as css
+WORKDIR /app
+COPY . /app
+RUN npm install && \
+    npx tailwindcss -i ./src/input.css -o ./src/web/tracker/static/base.css --minify
+
+FROM python:3.10.9-slim-bullseye
+
+ENV VERSION_NUMBER 0.2.4
+ENV PROD 1
+ENV PYTHONUNBUFFERED=1
+
+RUN apt update && \
+    apt install -y \
+    bash \
+    vim \
+    curl && \
+    apt install -y debian-keyring debian-archive-keyring apt-transport-https && \
+    curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/gpg.key' | gpg --dearmor -o /usr/share/keyrings/caddy-stable-archive-keyring.gpg && \
+    curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/debian.deb.txt' | tee /etc/apt/sources.list.d/caddy-stable.list && \
+    apt update && \
+    apt install caddy && \
+    rm -rf /var/lib/apt/lists/*
+
+RUN useradd -m --uid 1000 timetracker
 WORKDIR /home/timetracker/app
 COPY . /home/timetracker/app/
 RUN chown -R timetracker:timetracker /home/timetracker/app
-RUN poetry install --without dev
+COPY --from=css /app/src/web/tracker/static/base.css /home/timetracker/app/src/web/tracker/static/base.css
 COPY entrypoint.sh /
 RUN chmod +x /entrypoint.sh
+
 USER timetracker
+ENV PATH="$PATH:/home/timetracker/.local/bin"
+RUN pip install --no-cache-dir poetry
+RUN poetry install --without dev
+
 EXPOSE 8000
 ENTRYPOINT [ "/entrypoint.sh" ]

Makefile

@@ -1,8 +1,6 @@
-.PHONY: createsuperuser
-
 all: css migrate
 
-initialize: npm css migrate loadplatforms
+initialize: npm css migrate sethookdir loadplatforms
 
 HTMLFILES := $(shell find src/web/tracker/templates -type f)
 
@@ -16,22 +14,48 @@ css-dev: css
 	npx tailwindcss -i ./src/input.css -o  ./src/web/tracker/static/base.css --watch
 
 makemigrations:
-	python src/web/manage.py makemigrations
+	poetry run python src/web/manage.py makemigrations
 
 migrate: makemigrations
-	python src/web/manage.py migrate
+	poetry run python src/web/manage.py migrate
 
 dev: migrate
-	python src/web/manage.py runserver
+	poetry run python src/web/manage.py runserver
+
+caddy:
+	caddy run --watch
+
+dev-prod: migrate collectstatic
+	cd src/web/; PROD=1 poetry run python -m gunicorn --bind 0.0.0.0:8001 web.asgi:application -k uvicorn.workers.UvicornWorker
 
 dumptracker:
-	python src/web/manage.py dumpdata --format yaml tracker --output tracker_fixture.yaml
+	poetry run python src/web/manage.py dumpdata --format yaml tracker --output tracker_fixture.yaml
 
 loadplatforms:
-	python src/web/manage.py loaddata platforms.yaml
+	poetry run python src/web/manage.py loaddata platforms.yaml
 
 loadsample:
-	python src/web/manage.py loaddata sample.yaml
+	poetry run python src/web/manage.py loaddata sample.yaml
 
 createsuperuser:
-	python src/web/manage.py createsuperuser
+	poetry run python src/web/manage.py createsuperuser
+
+shell:
+	poetry run python src/web/manage.py shell
+
+collectstatic:
+	poetry run python src/web/manage.py collectstatic --clear --no-input
+
+poetry.lock: pyproject.toml
+	poetry install
+
+test: poetry.lock
+	poetry run pytest
+
+date:
+	poetry run python -c 'import datetime; from zoneinfo import ZoneInfo; print(datetime.datetime.isoformat(datetime.datetime.now(ZoneInfo("Europe/Prague")), timespec="minutes", sep=" "))'
+
+cleanstatic:
+	rm -r src/web/static/*
+
+clean: cleanstatic

docker-compose.yml

@@ -0,0 +1,17 @@
+---
+services:
+  timetracker:
+    image: registry.kucharczyk.xyz/timetracker
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: timetracker
+    environment:
+      - TZ=Europe/Prague
+      - CSRF_TRUSTED_ORIGINS="https://tracker.kucharczyk.xyz"
+    user: "1000"
+    # volumes:
+    #   - "db:/home/timetracker/app/src/web/db.sqlite3"
+    ports:
+      - "8000:8000"
+    restart: unless-stopped

entrypoint.sh

@@ -1,8 +1,13 @@
 #!/bin/bash
 # Apply database migrations
+set -euo pipefail
 echo "Apply database migrations"
-python src/web/manage.py migrate
+poetry run python src/web/manage.py migrate
+
+echo "Collect static files"
+poetry run python src/web/manage.py collectstatic --clear --no-input
 
-# Start server
 echo "Starting server"
-python src/web/manage.py runserver 0.0.0.0:8000
+caddy start
+cd src/web || exit
+poetry run python -m gunicorn --bind 0.0.0.0:8001 web.asgi:application -k uvicorn.workers.UvicornWorker --access-logfile - --error-logfile -

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "timetracker"
-version = "0.1.0"
+version = "0.2.4"
 description = "A simple time tracker."
 authors = ["Lukáš Kucharczyk <lukas@kucharczyk.xyz>"]
 license = "GPL"
@@ -9,12 +9,27 @@ readme = "README.md"
 [tool.poetry.dependencies]
 python = "^3.10"
 django = "^4.1.4"
+gunicorn = "^20.1.0"
+uvicorn = "^0.20.0"
+pandas = "^1.5.2"
+matplotlib = "^3.6.3"
 
 [tool.poetry.group.dev.dependencies]
 black = "^22.12.0"
 mypy = "^0.991"
 pyyaml = "^6.0"
+pytest = "^7.2.0"
+django-extensions = "^3.2.1"
+werkzeug = "^2.2.2"
+djhtml = "^1.5.2"
+djlint = "^1.19.11"
+isort = "^5.11.4"
 
 [build-system]
 requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"
+
+[tool.pytest.ini_options]
+pythonpath = [
+  "src"
+]

src/input.css

@@ -1,3 +1,22 @@
 @tailwind base;
 @tailwind components;
 @tailwind utilities;
+
+form label {
+  @apply dark:text-slate-400;
+}
+
+form input,
+select,
+textarea {
+  @apply dark:border dark:border-slate-900 dark:bg-slate-500 dark:text-slate-100;
+}
+
+#session-table {
+  display: grid;
+  grid-template-columns: 3fr 1fr repeat(2, 2fr) 0.5fr 1fr;
+}
+
+#button-container button {
+  @apply mx-1;
+}

src/web/common/util/plots.py

@@ -0,0 +1,91 @@
+import base64
+from datetime import datetime
+from io import BytesIO
+
+import matplotlib.pyplot as plt
+import matplotlib.dates as mdates
+import pandas as pd
+from django.db.models import F, IntegerField, QuerySet, Sum
+from django.db.models.functions import TruncDay
+from tracker.models import Session
+
+
+def key_value_to_value_value(data):
+    return {data["date"]: data["hours"]}
+
+
+def playtime_over_time_chart(queryset: QuerySet = Session.objects):
+    microsecond_in_second = 1000000
+    result = (
+        queryset.exclude(timestamp_end__exact=None)
+        .annotate(date=TruncDay("timestamp_start"))
+        .values("date")
+        .annotate(
+            hours=Sum(
+                F("duration_calculated"),
+                output_field=IntegerField(),
+            )
+        )
+        .values("date", "hours")
+    )
+    keys = []
+    values = []
+    running_total = int(0)
+    for item in result:
+        # date_value = datetime.strftime(item["date"], "%d-%m-%Y")
+        date_value = item["date"]
+        keys.append(date_value)
+        running_total += int(item["hours"] / (3600 * microsecond_in_second))
+        values.append(running_total)
+    data = [keys, values]
+    return get_chart(
+        data,
+        title="Playtime over time (manual excluded)",
+        xlabel="Date",
+        ylabel="Hours",
+    )
+
+
+def get_graph():
+    buffer = BytesIO()
+    plt.savefig(buffer, format="svg", transparent=True)
+    buffer.seek(0)
+    image_png = buffer.getvalue()
+    graph = base64.b64encode(image_png)
+    graph = graph.decode("utf-8")
+    buffer.close()
+    return graph
+
+
+def get_chart(data, title="", xlabel="", ylabel=""):
+    x = data[0]
+    y = data[1]
+    plt.style.use("dark_background")
+    plt.switch_backend("SVG")
+    fig, ax = plt.subplots()
+    fig.set_size_inches(10, 4)
+    ax.plot(x, y)
+    first = x[0]
+    last = x[-1]
+    difference = last - first
+    if difference.days <= 14:
+        ax.xaxis.set_major_locator(mdates.DayLocator())
+    elif difference.days < 60 or len(x) < 60:
+        ax.xaxis.set_major_locator(mdates.WeekdayLocator())
+        ax.xaxis.set_minor_locator(mdates.DayLocator())
+    elif difference.days < 720:
+        ax.xaxis.set_major_locator(mdates.MonthLocator())
+        ax.xaxis.set_minor_locator(mdates.WeekdayLocator())
+    else:
+        ax.xaxis.set_major_locator(mdates.YearLocator())
+        ax.xaxis.set_minor_locator(mdates.MonthLocator())
+
+    ax.xaxis.set_major_formatter(mdates.DateFormatter("%Y-%m-%d"))
+    for label in ax.get_xticklabels(which="major"):
+        label.set(rotation=30, horizontalalignment="right")
+    ax.set_xlabel(xlabel)
+    ax.set_ylabel(ylabel)
+    ax.set_title(title)
+    fig.tight_layout()
+    chart = get_graph()
+    return chart

src/web/common/util/time.py

@@ -0,0 +1,63 @@
+import re
+from datetime import datetime, timedelta
+from zoneinfo import ZoneInfo
+
+from django.conf import settings
+
+
+def now() -> datetime:
+    return datetime.now(ZoneInfo(settings.TIME_ZONE))
+
+
+def _safe_timedelta(duration: timedelta | int | None):
+    if duration == None:
+        return timedelta(0)
+    elif isinstance(duration, int):
+        return timedelta(seconds=duration)
+    elif isinstance(duration, timedelta):
+        return duration
+
+
+def format_duration(
+    duration: timedelta | int | None, format_string: str = "%H hours"
+) -> str:
+    """
+    Format timedelta into the specified format_string.
+    Valid format variables:
+    - %H hours
+    - %m minutes
+    - %s seconds
+    - %r total seconds
+    Values don't change into higher units if those units are missing
+    from the formatting string. For example:
+    - 61 seconds as "%s" = 61 seconds
+    - 61 seconds as "%m %s" = 1 minutes 1 seconds"
+    """
+    minute_seconds = 60
+    hour_seconds = 60 * minute_seconds
+    day_seconds = 24 * hour_seconds
+    duration = _safe_timedelta(duration)
+    # we don't need float
+    seconds_total = int(duration.total_seconds())
+    # timestamps where end is before start
+    if seconds_total < 0:
+        seconds_total = 0
+    days = hours = minutes = seconds = 0
+    remainder = seconds = seconds_total
+    if "%d" in format_string:
+        days, remainder = divmod(seconds_total, day_seconds)
+    if "%H" in format_string:
+        hours, remainder = divmod(remainder, hour_seconds)
+    if "%m" in format_string:
+        minutes, seconds = divmod(remainder, minute_seconds)
+    literals = {
+        "%d": str(days),
+        "%H": str(hours),
+        "%m": str(minutes),
+        "%s": str(seconds),
+        "%r": str(seconds_total),
+    }
+    formatted_string = format_string
+    for pattern, replacement in literals.items():
+        formatted_string = re.sub(pattern, replacement, formatted_string)
+    return formatted_string

src/web/tracker/admin.py

@@ -1,5 +1,6 @@
 from django.contrib import admin
-from .models import Game, Purchase, Platform, Session
+
+from .models import Game, Platform, Purchase, Session
 
 # Register your models here.
 admin.site.register(Game)

src/web/tracker/forms.py

@@ -1,8 +1,26 @@
 from django import forms
-from .models import Session, Purchase, Game
+
+from .models import Game, Platform, Purchase, Session
 
 
 class SessionForm(forms.ModelForm):
+    custom_datetime_widget = forms.SplitDateTimeWidget(
+        date_format=("%d-%m-%Y"),
+        time_format=("%H:%M"),
+        date_attrs={"type": "date"},
+        time_attrs={"type": "time"},
+    )
+    timestamp_start = forms.SplitDateTimeField(
+        input_date_formats="['%d-%m-%Y]",
+        input_time_formats="['%H:%M']",
+        widget=custom_datetime_widget,
+    )
+    timestamp_end = forms.SplitDateTimeField(
+        input_date_formats="['%d-%m-%Y]",
+        input_time_formats="['%H:%M']",
+        widget=custom_datetime_widget,
+    )
+
     class Meta:
         model = Session
         fields = [
@@ -13,14 +31,36 @@ class SessionForm(forms.ModelForm):
             "note",
         ]
 
+        # fields_classes = {
+        #     "timestamp_start": custom_datetime_field,
+        #     "timestamp_end": custom_datetime_field,
+        # }
+        # widgets = {
+        #     "timestamp_start": custom_datetime_widget,
+        #     "timestamp_end": custom_datetime_widget,
+        # }
+
 
 class PurchaseForm(forms.ModelForm):
     class Meta:
         model = Purchase
         fields = ["game", "platform", "date_purchased", "date_refunded"]
+        custom_date_widget = forms.DateInput(
+            format=("%d-%m-%Y"), attrs={"type": "date"}
+        )
+        widgets = {
+            "date_purchased": custom_date_widget,
+            "date_refunded": custom_date_widget,
+        }
 
 
 class GameForm(forms.ModelForm):
     class Meta:
         model = Game
         fields = ["name", "wikidata"]
+
+
+class PlatformForm(forms.ModelForm):
+    class Meta:
+        model = Platform
+        fields = ["name", "group"]

src/web/tracker/migrations/0001_initial.py

@@ -1,7 +1,7 @@
 # Generated by Django 4.1.4 on 2023-01-02 18:27
 
-from django.db import migrations, models
 import django.db.models.deletion
+from django.db import migrations, models
 
 
 class Migration(migrations.Migration):

src/web/tracker/migrations/0002_alter_session_duration_manual.py

@@ -1,6 +1,7 @@
 # Generated by Django 4.1.4 on 2023-01-02 18:55
 
 import datetime
+
 from django.db import migrations, models
 
 

src/web/tracker/migrations/0004_alter_session_duration_manual.py

@@ -0,0 +1,22 @@
+# Generated by Django 4.1.5 on 2023-01-09 14:49
+
+import datetime
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("tracker", "0003_alter_session_duration_manual_and_more"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="session",
+            name="duration_manual",
+            field=models.DurationField(
+                blank=True, default=datetime.timedelta(0), null=True
+            ),
+        ),
+    ]

src/web/tracker/migrations/0005_auto_20230109_1843.py

@@ -0,0 +1,35 @@
+# Generated by Django 4.1.5 on 2023-01-09 17:43
+
+from datetime import timedelta
+
+from django.db import migrations
+
+
+def set_duration_calculated_none_to_zero(apps, schema_editor):
+    Session = apps.get_model("tracker", "Session")
+    for session in Session.objects.all():
+        if session.duration_calculated == None:
+            session.duration_calculated = timedelta(0)
+            session.save()
+
+
+def revert_set_duration_calculated_none_to_zero(apps, schema_editor):
+    Session = apps.get_model("tracker", "Session")
+    for session in Session.objects.all():
+        if session.duration_calculated == timedelta(0):
+            session.duration_calculated = None
+            session.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("tracker", "0004_alter_session_duration_manual"),
+    ]
+
+    operations = [
+        migrations.RunPython(
+            set_duration_calculated_none_to_zero,
+            revert_set_duration_calculated_none_to_zero,
+        )
+    ]

src/web/tracker/migrations/0006_auto_20230109_1904.py

@@ -0,0 +1,35 @@
+# Generated by Django 4.1.5 on 2023-01-09 18:04
+
+from datetime import timedelta
+
+from django.db import migrations
+
+
+def set_duration_manual_none_to_zero(apps, schema_editor):
+    Session = apps.get_model("tracker", "Session")
+    for session in Session.objects.all():
+        if session.duration_manual == None:
+            session.duration_manual = timedelta(0)
+            session.save()
+
+
+def revert_set_duration_manual_none_to_zero(apps, schema_editor):
+    Session = apps.get_model("tracker", "Session")
+    for session in Session.objects.all():
+        if session.duration_manual == timedelta(0):
+            session.duration_manual = None
+            session.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("tracker", "0005_auto_20230109_1843"),
+    ]
+
+    operations = [
+        migrations.RunPython(
+            set_duration_manual_none_to_zero,
+            revert_set_duration_manual_none_to_zero,
+        )
+    ]

src/web/tracker/models.py

@@ -1,5 +1,11 @@
+from datetime import datetime, timedelta
+from typing import Any
+from zoneinfo import ZoneInfo
+
+from common.util.time import format_duration
+from django.conf import settings
 from django.db import models
-from datetime import timedelta
+from django.db.models import F, Manager, Sum
 
 
 class Game(models.Model):
@@ -28,24 +34,58 @@ class Platform(models.Model):
         return self.name
 
 
+class SessionQuerySet(models.QuerySet):
+    def total_duration(self):
+        result = self.aggregate(
+            duration=Sum(F("duration_calculated") + F("duration_manual"))
+        )
+        return format_duration(result["duration"])
+
+
 class Session(models.Model):
     purchase = models.ForeignKey("Purchase", on_delete=models.CASCADE)
     timestamp_start = models.DateTimeField()
     timestamp_end = models.DateTimeField(blank=True, null=True)
-    duration_manual = models.DurationField(blank=True, null=True)
+    duration_manual = models.DurationField(blank=True, null=True, default=timedelta(0))
     duration_calculated = models.DurationField(blank=True, null=True)
     note = models.TextField(blank=True, null=True)
 
+    objects = SessionQuerySet.as_manager()
+
     def __str__(self):
         mark = ", manual" if self.duration_manual != None else ""
-        return f"{str(self.purchase)} {str(self.timestamp_start.date())} ({self.total_duration()}{mark})"
+        return f"{str(self.purchase)} {str(self.timestamp_start.date())} ({self.duration_formatted()}{mark})"
 
-    def calculated_duration(self):
-        return self.timestamp_end - self.timestamp_start
+    def finish_now(self):
+        self.timestamp_end = datetime.now(ZoneInfo(settings.TIME_ZONE))
 
-    def total_duration(self):
-        return (
-            self.calculated_duration()
-            if self.duration_manual == None
-            else self.duration_manual + self.calculated_duration()
-        )
+    def start_now():
+        self.timestamp_start = datetime.now(ZoneInfo(settings.TIME_ZONE))
+
+    def duration_seconds(self) -> timedelta:
+        manual = timedelta(0)
+        calculated = timedelta(0)
+        if not self.duration_manual in (None, 0, timedelta(0)):
+            manual = self.duration_manual
+        if self.timestamp_end != None and self.timestamp_start != None:
+            calculated = self.timestamp_end - self.timestamp_start
+        return timedelta(seconds=(manual + calculated).total_seconds())
+
+    def duration_formatted(self) -> str:
+        result = format_duration(self.duration_seconds(), "%H:%m")
+        return result
+
+    @property
+    def duration_sum(self) -> str:
+        return Session.objects.all().total_duration()
+
+    @property
+    def last(self) -> Manager[Any]:
+        return Session.objects.all().order_by("timestamp_start")[0]
+
+    def save(self, *args, **kwargs):
+        if self.timestamp_start != None and self.timestamp_end != None:
+            self.duration_calculated = self.timestamp_end - self.timestamp_start
+        else:
+            self.duration_calculated = timedelta(0)
+        super(Session, self).save(*args, **kwargs)

src/web/tracker/static/base.css

@@ -683,45 +683,114 @@ select {
   width: 100%;
 }
 
+.\!container {
+  width: 100% !important;
+}
+
 @media (min-width: 640px) {
   .container {
     max-width: 640px;
   }
+
+  .\!container {
+    max-width: 640px !important;
+  }
 }
 
 @media (min-width: 768px) {
   .container {
     max-width: 768px;
   }
+
+  .\!container {
+    max-width: 768px !important;
+  }
 }
 
 @media (min-width: 1024px) {
   .container {
     max-width: 1024px;
   }
+
+  .\!container {
+    max-width: 1024px !important;
+  }
 }
 
 @media (min-width: 1280px) {
   .container {
     max-width: 1280px;
   }
+
+  .\!container {
+    max-width: 1280px !important;
+  }
 }
 
 @media (min-width: 1536px) {
   .container {
     max-width: 1536px;
   }
+
+  .\!container {
+    max-width: 1536px !important;
+  }
+}
+
+.visible {
+  visibility: visible;
+}
+
+.collapse {
+  visibility: collapse;
 }
 
 .static {
   position: static;
 }
 
+.fixed {
+  position: fixed;
+}
+
+.\!fixed {
+  position: fixed !important;
+}
+
+.absolute {
+  position: absolute;
+}
+
+.relative {
+  position: relative;
+}
+
+.sticky {
+  position: sticky;
+}
+
+.\!sticky {
+  position: sticky !important;
+}
+
+.left-2 {
+  left: 0.5rem;
+}
+
+.bottom-2 {
+  bottom: 0.5rem;
+}
+
 .mx-auto {
   margin-left: auto;
   margin-right: auto;
 }
 
+.my-5 {
+  margin-top: 1.25rem;
+  margin-bottom: 1.25rem;
+}
+
 .mb-4 {
   margin-bottom: 1rem;
 }
@@ -730,28 +799,108 @@ select {
   margin-top: 1rem;
 }
 
+.mb-3 {
+  margin-bottom: 0.75rem;
+}
+
+.ml-1 {
+  margin-left: 0.25rem;
+}
+
+.mt-5 {
+  margin-top: 1.25rem;
+}
+
+.mb-2 {
+  margin-bottom: 0.5rem;
+}
+
+.mt-10 {
+  margin-top: 2.5rem;
+}
+
 .block {
   display: block;
 }
 
+.inline-block {
+  display: inline-block;
+}
+
+.inline {
+  display: inline;
+}
+
 .flex {
   display: flex;
 }
 
-.grid {
-  display: grid;
+.table {
+  display: table;
+}
+
+.table-caption {
+  display: table-caption;
+}
+
+.table-cell {
+  display: table-cell;
+}
+
+.contents {
+  display: contents;
+}
+
+.hidden {
+  display: none;
+}
+
+.\!hidden {
+  display: none !important;
+}
+
+.h-6 {
+  height: 1.5rem;
+}
+
+.h-5 {
+  height: 1.25rem;
+}
+
+.h-4 {
+  height: 1rem;
+}
+
+.min-h-screen {
+  min-height: 100vh;
 }
 
 .w-full {
   width: 100%;
 }
 
+.w-6 {
+  width: 1.5rem;
+}
+
+.w-5 {
+  width: 1.25rem;
+}
+
+.w-7 {
+  width: 1.75rem;
+}
+
+.w-4 {
+  width: 1rem;
+}
+
 .max-w-screen-lg {
   max-width: 1024px;
 }
 
-.grid-cols-4 {
-  grid-template-columns: repeat(4, minmax(0, 1fr));
+.resize {
+  resize: both;
 }
 
 .flex-col {
@@ -766,6 +915,10 @@ select {
   align-items: center;
 }
 
+.justify-end {
+  justify-content: flex-end;
+}
+
 .justify-center {
   justify-content: center;
 }
@@ -782,6 +935,20 @@ select {
   align-self: center;
 }
 
+.overflow-hidden {
+  overflow: hidden;
+}
+
+.truncate {
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.text-ellipsis {
+  text-overflow: ellipsis;
+}
+
 .whitespace-nowrap {
   white-space: nowrap;
 }
@@ -790,10 +957,18 @@ select {
   border-radius: 0.25rem;
 }
 
+.rounded-lg {
+  border-radius: 0.5rem;
+}
+
 .rounded-xl {
   border-radius: 0.75rem;
 }
 
+.border {
+  border-width: 1px;
+}
+
 .border-gray-200 {
   --tw-border-opacity: 1;
   border-color: rgb(229 231 235 / var(--tw-border-opacity));
@@ -804,6 +979,21 @@ select {
   background-color: rgb(255 255 255 / var(--tw-bg-opacity));
 }
 
+.bg-green-600 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(22 163 74 / var(--tw-bg-opacity));
+}
+
+.bg-blue-600 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(37 99 235 / var(--tw-bg-opacity));
+}
+
+.bg-red-600 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(220 38 38 / var(--tw-bg-opacity));
+}
+
 .p-4 {
   padding: 1rem;
 }
@@ -817,6 +1007,16 @@ select {
   padding-bottom: 0.5rem;
 }
 
+.py-1 {
+  padding-top: 0.25rem;
+  padding-bottom: 0.25rem;
+}
+
+.px-2 {
+  padding-left: 0.5rem;
+  padding-right: 0.5rem;
+}
+
 .pl-3 {
   padding-left: 0.75rem;
 }
@@ -825,6 +1025,14 @@ select {
   padding-right: 1rem;
 }
 
+.text-center {
+  text-align: center;
+}
+
+.text-right {
+  text-align: right;
+}
+
 .text-4xl {
   font-size: 2.25rem;
   line-height: 2.5rem;
@@ -835,6 +1043,16 @@ select {
   line-height: 1.75rem;
 }
 
+.text-xs {
+  font-size: 0.75rem;
+  line-height: 1rem;
+}
+
+.text-base {
+  font-size: 1rem;
+  line-height: 1.5rem;
+}
+
 .text-lg {
   font-size: 1.125rem;
   line-height: 1.75rem;
@@ -844,26 +1062,175 @@ select {
   font-weight: 600;
 }
 
+.uppercase {
+  text-transform: uppercase;
+}
+
+.lowercase {
+  text-transform: lowercase;
+}
+
 .text-white {
   --tw-text-opacity: 1;
   color: rgb(255 255 255 / var(--tw-text-opacity));
 }
 
+.text-slate-300 {
+  --tw-text-opacity: 1;
+  color: rgb(203 213 225 / var(--tw-text-opacity));
+}
+
+.text-red-400 {
+  --tw-text-opacity: 1;
+  color: rgb(248 113 113 / var(--tw-text-opacity));
+}
+
+.text-red-700 {
+  --tw-text-opacity: 1;
+  color: rgb(185 28 28 / var(--tw-text-opacity));
+}
+
+.shadow-md {
+  --tw-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
+  --tw-shadow-colored: 0 4px 6px -1px var(--tw-shadow-color), 0 2px 4px -2px var(--tw-shadow-color);
+  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
+}
+
 .shadow {
   --tw-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
   --tw-shadow-colored: 0 1px 3px 0 var(--tw-shadow-color), 0 1px 2px -1px var(--tw-shadow-color);
   box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
 }
 
+.blur {
+  --tw-blur: blur(8px);
+  filter: var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow);
+}
+
+.invert {
+  --tw-invert: invert(100%);
+  filter: var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow);
+}
+
+.\!invert {
+  --tw-invert: invert(100%) !important;
+  filter: var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow) !important;
+}
+
+.filter {
+  filter: var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow);
+}
+
+.\!filter {
+  filter: var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow) !important;
+}
+
+.transition {
+  transition-property: color, background-color, border-color, text-decoration-color, fill, stroke, opacity, box-shadow, transform, filter, -webkit-backdrop-filter;
+  transition-property: color, background-color, border-color, text-decoration-color, fill, stroke, opacity, box-shadow, transform, filter, backdrop-filter;
+  transition-property: color, background-color, border-color, text-decoration-color, fill, stroke, opacity, box-shadow, transform, filter, backdrop-filter, -webkit-backdrop-filter;
+  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
+  transition-duration: 150ms;
+}
+
+.duration-200 {
+  transition-duration: 200ms;
+}
+
+.ease-in {
+  transition-timing-function: cubic-bezier(0.4, 0, 1, 1);
+}
+
+.dark form label {
+  --tw-text-opacity: 1;
+  color: rgb(148 163 184 / var(--tw-text-opacity));
+}
+
+.dark form input,.dark 
+select,.dark 
+textarea {
+  border-width: 1px;
+  --tw-border-opacity: 1;
+  border-color: rgb(15 23 42 / var(--tw-border-opacity));
+  --tw-bg-opacity: 1;
+  background-color: rgb(100 116 139 / var(--tw-bg-opacity));
+  --tw-text-opacity: 1;
+  color: rgb(241 245 249 / var(--tw-text-opacity));
+}
+
+#session-table {
+  display: grid;
+  grid-template-columns: 3fr 1fr repeat(2, 2fr) 0.5fr 1fr;
+}
+
+#button-container button {
+  margin-left: 0.25rem;
+  margin-right: 0.25rem;
+}
+
+.hover\:bg-green-700:hover {
+  --tw-bg-opacity: 1;
+  background-color: rgb(21 128 61 / var(--tw-bg-opacity));
+}
+
+.hover\:bg-blue-700:hover {
+  --tw-bg-opacity: 1;
+  background-color: rgb(29 78 216 / var(--tw-bg-opacity));
+}
+
+.hover\:bg-red-700:hover {
+  --tw-bg-opacity: 1;
+  background-color: rgb(185 28 28 / var(--tw-bg-opacity));
+}
+
 .hover\:underline:hover {
   text-decoration-line: underline;
 }
 
+.focus\:outline-none:focus {
+  outline: 2px solid transparent;
+  outline-offset: 2px;
+}
+
+.focus\:ring-2:focus {
+  --tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);
+  --tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(2px + var(--tw-ring-offset-width)) var(--tw-ring-color);
+  box-shadow: var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow, 0 0 #0000);
+}
+
+.focus\:ring-green-500:focus {
+  --tw-ring-opacity: 1;
+  --tw-ring-color: rgb(34 197 94 / var(--tw-ring-opacity));
+}
+
+.focus\:ring-blue-500:focus {
+  --tw-ring-opacity: 1;
+  --tw-ring-color: rgb(59 130 246 / var(--tw-ring-opacity));
+}
+
+.focus\:ring-red-500:focus {
+  --tw-ring-opacity: 1;
+  --tw-ring-color: rgb(239 68 68 / var(--tw-ring-opacity));
+}
+
+.focus\:ring-offset-2:focus {
+  --tw-ring-offset-width: 2px;
+}
+
+.focus\:ring-offset-blue-200:focus {
+  --tw-ring-offset-color: #bfdbfe;
+}
+
 .dark .dark\:border-white {
   --tw-border-opacity: 1;
   border-color: rgb(255 255 255 / var(--tw-border-opacity));
 }
 
+.dark .dark\:bg-gray-800 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(31 41 55 / var(--tw-bg-opacity));
+}
+
 .dark .dark\:bg-gray-900 {
   --tw-bg-opacity: 1;
   background-color: rgb(17 24 39 / var(--tw-bg-opacity));
@@ -874,9 +1241,14 @@ select {
   background-color: rgb(51 65 85 / var(--tw-bg-opacity));
 }
 
-.dark .dark\:text-slate-300 {
+.dark .dark\:text-white {
   --tw-text-opacity: 1;
-  color: rgb(203 213 225 / var(--tw-text-opacity));
+  color: rgb(255 255 255 / var(--tw-text-opacity));
+}
+
+.dark .dark\:text-slate-600 {
+  --tw-text-opacity: 1;
+  color: rgb(71 85 105 / var(--tw-text-opacity));
 }
 
 .dark .dark\:text-slate-400 {
@@ -884,6 +1256,11 @@ select {
   color: rgb(148 163 184 / var(--tw-text-opacity));
 }
 
+.dark .dark\:text-slate-300 {
+  --tw-text-opacity: 1;
+  color: rgb(203 213 225 / var(--tw-text-opacity));
+}
+
 @media (min-width: 768px) {
   .md\:block {
     display: block;

src/web/tracker/templates/add.html

@@ -1,13 +1,13 @@
-{% extends 'base.html' %}
+{% extends "base.html" %}
 
 {% block title %}{{ title }}{% endblock title %}
 
 {% block content %}
-<form method="POST" enctype="multipart/form-data" class="mx-auto">
+    <form method="post" enctype="multipart/form-data" class="mx-auto">
         {% csrf_token %}
 
         {{ form.as_p }}
 
-    <input type="submit" value="Submit">
+        <input type="submit" value="Submit"/>
     </form>
 {% endblock content %}

src/web/tracker/templates/add_purchase.html

@@ -1,13 +0,0 @@
-{% extends 'base.html' %}
-
-{% block title %}Add New Purchase{% endblock title %}
-
-{% block content %}
-<form method="POST" enctype="multipart/form-data" class="mx-auto">
-    {% csrf_token %}
-
-    {{ form.as_p }}
-
-    <input type="submit" value="Submit">
-</form>
-{% endblock content %}

src/web/tracker/templates/add_session.html

@@ -1,13 +0,0 @@
-{% extends 'base.html' %}
-
-{% block title %}Add New Session{% endblock title %}
-
-{% block content %}
-<form method="POST" enctype="multipart/form-data" class="mx-auto">
-    {% csrf_token %}
-
-    {{ form.as_p }}
-
-    <input type="submit" value="Submit">
-</form>
-{% endblock content %}

src/web/tracker/templates/base.html

@@ -4,32 +4,45 @@
     {% load static %}
 
     <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <title>{% block title %}No Title{% endblock title %}</title>
-    <link rel="stylesheet" href="https://rsms.me/inter/inter.css">
+        <meta charset="utf-8"/>
+        <meta name="description" content="Self-hosted time-tracker."/>
+        <meta name="keywords" content="time, tracking, video games, self-hosted"/>
+        <meta name="viewport" content="width=device-width, initial-scale=1"/>
+        <title>Timetracker - {% block title %}Untitled{% endblock title %}</title>
+        <link rel="stylesheet" href="https://rsms.me/inter/inter.css"/>
         <link rel="stylesheet" href="{% static 'base.css' %}" />
     </head>
 
     <body class="dark">
+        <div class="dark:bg-gray-800 min-h-screen">
             <nav class="mb-4 bg-white dark:bg-gray-900 border-gray-200 rounded">
                 <div class="container flex flex-wrap items-center justify-between mx-auto">
-            <a href="#" class="flex items-center">
+                    <a href="{% url 'index' %}" class="flex items-center">
                         <span class="text-4xl">⌚</span>
                         <span class="self-center text-xl font-semibold whitespace-nowrap text-white">Timetracker</span>
                     </a>
                     <div class="w-full md:block md:w-auto">
                         <ul
-                    class="flex flex-col md:flex-row p-4 mt-4">
+                            class="flex flex-col md:flex-row p-4 mt-4 dark:text-white">
                             <li><a class="block py-2 pl-3 pr-4 hover:underline" href="{% url 'add_game' %}">New Game</a></li>
+                            <li><a class="block py-2 pl-3 pr-4 hover:underline" href="{% url 'add_platform' %}">New Platform</a></li>
+                            {% if game_available and platform_available %}
                                 <li><a class="block py-2 pl-3 pr-4 hover:underline" href="{% url 'add_purchase' %}">New Purchase</a></li>
+                            {% endif %}
+                            {% if purchase_available %}
                                 <li><a class="block py-2 pl-3 pr-4 hover:underline" href="{% url 'add_session' %}">New Session</a></li>
+                            {% endif %}
+                            {% if session_count > 0 %}
                                 <li><a class="block py-2 pl-3 pr-4 hover:underline" href="{% url 'list_sessions' %}">All Sessions</a></li>
+                            {% endif %}
                         </ul>
                     </div>
                 </div>
             </nav>
-    {% block content %}No content here.{% endblock %}
+            {% block content %}No content here.{% endblock content %}
+        </div>
+        {% load version %}
+        <span class="fixed left-2 bottom-2 text-xs text-slate-300 dark:text-slate-600">{% version %} ({% version_date %})</span>
     </body>
 
 </html>

src/web/tracker/templates/index.html

@@ -0,0 +1,17 @@
+{% extends "base.html" %}
+
+{% block title %}{{ title }}{% endblock title %}
+
+{% block content %}
+    <div class="text-slate-300 mx-auto max-w-screen-lg text-center">
+        {% if session_count > 0 %}
+            You have played a total of {{ session_count }} sessions for a total of {{ total_duration }}.
+        {% elif not game_available or not platform_available %}
+            There are no games in the database. Start by clicking "New Game" and "New Platform".
+        {% elif not purchase_available %}
+            There are no owned games. Click "New Purchase" at the top.
+        {% else %}
+            You haven't played any games yet. Click "New Session" to add one now.
+        {% endif %}
+    </div>
+{% endblock content %}

src/web/tracker/templates/list_sessions.html

@@ -1,18 +1,81 @@
 {% extends 'base.html' %}
 
-{% block title %}Tracker Entry List{% endblock title %}
+{% block title %}Sessions{% endblock title %}
 
 {% block content %}
-<div class="grid grid-cols-4 gap-4 shadow rounded-xl max-w-screen-lg mx-auto dark:bg-slate-700 p-2 justify-center">
+        <div class="text-center text-xl mb-4 dark:text-slate-400">
+            {% if dataset.count >= 2 %}
+            <img src="data:image/svg+xml;base64,{{ chart|safe }}" class="mx-auto mb-3" />
+            {% endif %}
+            {% if dataset.count >= 1 %}
+            <div class="mb-4">Total playtime: {{ total_duration }} over {{ dataset.count }} sessions.</div>
+            {% endif %}
+            {% if purchase or platform or game %}
+            <a class="text-red-400 inline" href="{% url 'list_sessions' %}"><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="w-6 h-6 inline">
+                <path stroke-linecap="round" stroke-linejoin="round" d="M9.75 9.75l4.5 4.5m0-4.5l-4.5 4.5M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
+              </svg>
+              </a><span>Filtering by "{% firstof purchase platform game %}"</span>
+            {% if purchase %}<a class="dark:text-white hover:underline block" href="{% url 'list_sessions_by_game' purchase.game.id %}">See all platforms</a>{% endif %}
+            {% endif %}
+            {% if dataset.count >= 1 %}
+            <a class="block" href="{% url 'start_session' dataset.last.purchase.id %}">
+                <button type="button" title="Track last tracked" class="mt-10 py-1 px-2 bg-green-600 hover:bg-green-700 focus:ring-green-500 focus:ring-offset-blue-200 text-white transition ease-in duration-200 text-center text-base font-semibold shadow-md focus:outline-none focus:ring-2 focus:ring-offset-2 rounded-lg ">
+                    <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="self-center w-6 h-6 inline">
+                        <path stroke-linecap="round" stroke-linejoin="round" d="M5.25 5.653c0-.856.917-1.398 1.667-.986l11.54 6.348a1.125 1.125 0 010 1.971l-11.54 6.347a1.125 1.125 0 01-1.667-.985V5.653z" />
+                    </svg>
+                    {{ last.purchase }}
+                </button>
+            </a>
+            {% endif %}
+        </div>
+    <div id="session-table" class="gap-4 shadow rounded-xl max-w-screen-lg mx-auto dark:bg-slate-700 p-2 justify-center">
         <div class="dark:border-white dark:text-slate-300 text-lg">Name</div>
-    <div class="dark:border-white dark:text-slate-300 text-lg">Start</div>
-    <div class="dark:border-white dark:text-slate-300 text-lg">End</div>
+        <div class="dark:border-white dark:text-slate-300 text-lg">Platform</div>
+        <div class="dark:border-white dark:text-slate-300 text-lg text-center">Start</div>
+        <div class="dark:border-white dark:text-slate-300 text-lg text-center">End</div>
         <div class="dark:border-white dark:text-slate-300 text-lg">Duration</div>
+        <div class="dark:border-white dark:text-slate-300 text-lg text-right">Manage</div>
         {% for data in dataset %}
-    <div class="dark:text-slate-400">{{ data.purchase }}</div>
-    <div class="dark:text-slate-400">{{ data.timestamp_start }}</div>
-    <div class="dark:text-slate-400">{{ data.timestamp_end }}</div>
-    <div class="dark:text-slate-400">{{ data.time_delta }}</div>
+            <div class="dark:text-white overflow-hidden text-ellipsis whitespace-nowrap"><a class="hover:underline" href="{% url 'list_sessions_by_purchase' data.purchase.id %}">{{ data.purchase.game }}</a></div>
+            <div class="dark:text-white overflow-hidden text-ellipsis whitespace-nowrap"><a class="hover:underline" href="{% url 'list_sessions_by_platform' data.purchase.platform.id %}">{{ data.purchase.platform }}</a></div>
+            <div class="dark:text-slate-400 text-center">{{ data.timestamp_start | date:"d/m/Y H:i" }}</div>
+            <div class="dark:text-slate-400 text-center">
+                {% if data.unfinished %}
+                    <span class="text-red-400">Not finished yet.</span>
+                {% elif data.duration_manual %}
+                    --
+                {% else %}
+                    {{ data.timestamp_end | date:"d/m/Y H:i" }}
+                {% endif %}
+            </div>
+            <div class="dark:text-slate-400 flex">{{ data.duration_formatted }}{% if data.duration_manual %} <svg title="Added manually" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor" class="w-5 h-5 ml-1 self-center">
+                <path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a.75.75 0 000 1.5h.253a.25.25 0 01.244.304l-.459 2.066A1.75 1.75 0 0010.747 15H11a.75.75 0 000-1.5h-.253a.25.25 0 01-.244-.304l.459-2.066A1.75 1.75 0 009.253 9H9z" clip-rule="evenodd" />
+              </svg>
+              {% endif %}</div>
+            <div id="button-container" class="flex justify-end">
+                {% if data.unfinished %}
+                    <a href="{% url 'update_session' data.id %}">
+                        <button type="button" title="Set to finished" class="py-1 px-2 flex justify-center items-center  bg-green-600 hover:bg-green-700 focus:ring-green-500 focus:ring-offset-blue-200 text-white transition ease-in duration-200 text-center text-base font-semibold shadow-md focus:outline-none focus:ring-2 focus:ring-offset-2 w-7 h-4 rounded-lg ">
+                            <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor" class="w-4 h-4">
+                                <path fill-rule="evenodd" d="M16.704 4.153a.75.75 0 01.143 1.052l-8 10.5a.75.75 0 01-1.127.075l-4.5-4.5a.75.75 0 011.06-1.06l3.894 3.893 7.48-9.817a.75.75 0 011.05-.143z" clip-rule="evenodd" />
+                            </svg>
+                        </button>
+                    </a>
+                {% endif %}
+                <button type="button" title="Edit" class="py-1 px-2 flex justify-center items-center  bg-blue-600 hover:bg-blue-700 focus:ring-blue-500 focus:ring-offset-blue-200 text-white transition ease-in duration-200 text-center text-base font-semibold shadow-md focus:outline-none focus:ring-2 focus:ring-offset-2 w-7 h-4 rounded-lg ">
+                    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor" class="w-5 h-5">
+                        <path d="M5.433 13.917l1.262-3.155A4 4 0 017.58 9.42l6.92-6.918a2.121 2.121 0 013 3l-6.92 6.918c-.383.383-.84.685-1.343.886l-3.154 1.262a.5.5 0 01-.65-.65z" />
+                        <path d="M3.5 5.75c0-.69.56-1.25 1.25-1.25H10A.75.75 0 0010 3H4.75A2.75 2.75 0 002 5.75v9.5A2.75 2.75 0 004.75 18h9.5A2.75 2.75 0 0017 15.25V10a.75.75 0 00-1.5 0v5.25c0 .69-.56 1.25-1.25 1.25h-9.5c-.69 0-1.25-.56-1.25-1.25v-9.5z" />
+                    </svg>
+                </button>
+                <a href="{% url 'delete_session' data.id %}">
+                    <button type="button" edit="Delete" class="py-1 px-2 flex justify-center items-center  bg-red-600 hover:bg-red-700 focus:ring-red-500 focus:ring-offset-blue-200 text-white transition ease-in duration-200 text-center text-base font-semibold shadow-md focus:outline-none focus:ring-2 focus:ring-offset-2 w-7 h-4 rounded-lg ">
+                        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor" class="w-5 h-5">
+                            <path fill-rule="evenodd" d="M8.75 1A2.75 2.75 0 006 3.75v.443c-.795.077-1.584.176-2.365.298a.75.75 0 10.23 1.482l.149-.022.841 10.518A2.75 2.75 0 007.596 19h4.807a2.75 2.75 0 002.742-2.53l.841-10.52.149.023a.75.75 0 00.23-1.482A41.03 41.03 0 0014 4.193V3.75A2.75 2.75 0 0011.25 1h-2.5zM10 4c.84 0 1.673.025 2.5.075V3.75c0-.69-.56-1.25-1.25-1.25h-2.5c-.69 0-1.25.56-1.25 1.25v.325C8.327 4.025 9.16 4 10 4zM8.58 7.72a.75.75 0 00-1.5.06l.3 7.5a.75.75 0 101.5-.06l-.3-7.5zm4.34.06a.75.75 0 10-1.5-.06l-.3 7.5a.75.75 0 101.5.06l.3-7.5z" clip-rule="evenodd" />
+                        </svg>
+                    </button>
+                </a>
+            </div>
         {% endfor %}
     </div>
 {% endblock content %}

src/web/tracker/templatetags/version.py

@@ -0,0 +1,24 @@
+import os
+import time
+
+from django import template
+from django.conf import settings
+
+register = template.Library()
+
+
+@register.simple_tag
+def version_date():
+    return time.strftime(
+        "%d-%b-%Y %H:%m",
+        time.gmtime(
+            os.path.getmtime(
+                os.path.abspath(os.path.join(settings.BASE_DIR, "..", "..", ".git"))
+            )
+        ),
+    )
+
+
+@register.simple_tag
+def version():
+    return os.environ.get("VERSION_NUMBER", "git-main")

src/web/tracker/urls.py

@@ -3,8 +3,43 @@ from django.urls import path
 from . import views
 
 urlpatterns = [
+    path("", views.index, name="index"),
     path("add-game/", views.add_game, name="add_game"),
+    path("add-platform/", views.add_platform, name="add_platform"),
     path("add-session/", views.add_session, name="add_session"),
+    path(
+        "update-session/by-session/<int:session_id>",
+        views.update_session,
+        name="update_session",
+    ),
+    path(
+        "start-session/<int:purchase_id>",
+        views.start_session,
+        name="start_session",
+    ),
+    path(
+        "delete_session/by-id/<int:session_id>",
+        views.delete_session,
+        name="delete_session",
+    ),
     path("add-purchase/", views.add_purchase, name="add_purchase"),
     path("list-sessions/", views.list_sessions, name="list_sessions"),
+    path(
+        "list-sessions/by-purchase/<int:purchase_id>",
+        views.list_sessions,
+        {"filter": "purchase"},
+        name="list_sessions_by_purchase",
+    ),
+    path(
+        "list-sessions/by-platform/<int:platform_id>",
+        views.list_sessions,
+        {"filter": "platform"},
+        name="list_sessions_by_platform",
+    ),
+    path(
+        "list-sessions/by-game/<int:game_id>",
+        views.list_sessions,
+        {"filter": "game"},
+        name="list_sessions_by_game",
+    ),
 ]

src/web/tracker/views.py

@@ -1,31 +1,87 @@
-from django.shortcuts import render
-
-from .models import Game, Platform, Purchase, Session
-from .forms import SessionForm, PurchaseForm, GameForm
 from datetime import datetime
-from django.db.models import ExpressionWrapper, F, DurationField
+from zoneinfo import ZoneInfo
+
+from common.util.plots import playtime_over_time_chart
+from common.util.time import now as now_with_tz
+from django.conf import settings
+from django.shortcuts import redirect, render
+
+from .forms import GameForm, PlatformForm, PurchaseForm, SessionForm
+from .models import Game, Platform, Purchase, Session
+
+
+def model_counts(request):
+    return {
+        "game_available": Game.objects.count() != 0,
+        "platform_available": Platform.objects.count() != 0,
+        "purchase_available": Purchase.objects.count() != 0,
+        "session_count": Session.objects.count(),
+    }
 
 
 def add_session(request):
     context = {}
-    now = datetime.now()
-    initial = {"timestamp_start": now, "timestamp_end": now}
+    now = now_with_tz()
+    last = Session.objects.all().last()
+    initial = {
+        "timestamp_start_0": now.date(),
+        "timestamp_start_1": now.time(),
+        "purchase": last.purchase,
+    }
     form = SessionForm(request.POST or None, initial=initial)
     if form.is_valid():
         form.save()
+        return redirect("list_sessions")
 
+    context["title"] = "Add New Session"
     context["form"] = form
-    return render(request, "add_session.html", context)
+    return render(request, "add.html", context)
 
 
-def list_sessions(request):
+def update_session(request, session_id=None):
+    session = Session.objects.get(id=session_id)
+    session.finish_now()
+    session.save()
+    return redirect("list_sessions")
+
+
+def start_session(request, purchase_id=None):
+    session = SessionForm({"purchase": purchase_id, "timestamp_start": now_with_tz()})
+    session.save()
+    return redirect("list_sessions")
+
+
+def delete_session(request, session_id=None):
+    session = Session.objects.get(id=session_id)
+    session.delete()
+    return redirect("list_sessions")
+
+
+def list_sessions(request, filter="", purchase_id="", platform_id="", game_id=""):
     context = {}
-    dataset = Session.objects.annotate(
-        time_delta=ExpressionWrapper(
-            F("timestamp_end") - F("timestamp_start"), output_field=DurationField()
-        )
-    )
+
+    if filter == "purchase":
+        dataset = Session.objects.filter(purchase=purchase_id)
+        context["purchase"] = Purchase.objects.get(id=purchase_id)
+    elif filter == "platform":
+        dataset = Session.objects.filter(purchase__platform=platform_id)
+        context["platform"] = Platform.objects.get(id=platform_id)
+    elif filter == "game":
+        dataset = Session.objects.filter(purchase__game=game_id)
+        context["game"] = Game.objects.get(id=game_id)
+    else:
+        dataset = Session.objects.all().order_by("-timestamp_start")
+
+    for session in dataset:
+        if session.timestamp_end == None and session.duration_manual.seconds == 0:
+            session.timestamp_end = datetime.now(ZoneInfo(settings.TIME_ZONE))
+            session.unfinished = True
+
+    context["total_duration"] = dataset.total_duration()
     context["dataset"] = dataset
+    context["last"] = Session.objects.all().last()
+    # charts are always oldest->newest
+    context["chart"] = playtime_over_time_chart(dataset.order_by("timestamp_start"))
 
     return render(request, "list_sessions.html", context)
 
@@ -37,9 +93,11 @@ def add_purchase(request):
     form = PurchaseForm(request.POST or None, initial=initial)
     if form.is_valid():
         form.save()
+        return redirect("index")
 
     context["form"] = form
-    return render(request, "add_purchase.html", context)
+    context["title"] = "Add New Purchase"
+    return render(request, "add.html", context)
 
 
 def add_game(request):
@@ -47,7 +105,27 @@ def add_game(request):
     form = GameForm(request.POST or None)
     if form.is_valid():
         form.save()
+        return redirect("index")
 
     context["form"] = form
     context["title"] = "Add New Game"
     return render(request, "add.html", context)
+
+
+def add_platform(request):
+    context = {}
+    form = PlatformForm(request.POST or None)
+    if form.is_valid():
+        form.save()
+        return redirect("index")
+
+    context["form"] = form
+    context["title"] = "Add New Platform"
+    return render(request, "add.html", context)
+
+
+def index(request):
+    context = {}
+    context["total_duration"] = Session().duration_sum
+    context["title"] = "Index"
+    return render(request, "index.html", context)

src/web/web/settings.py

@@ -10,6 +10,7 @@ For the full list of settings and their values, see
 https://docs.djangoproject.com/en/4.1/ref/settings/
 """
 
+import os
 from pathlib import Path
 
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
@@ -23,7 +24,7 @@ BASE_DIR = Path(__file__).resolve().parent.parent
 SECRET_KEY = "django-insecure-x0_t$gei=_o_p(%%!-db$jezka@y+d67$a8tvw13nl^8$l*t@="
 
 # SECURITY WARNING: don't run with debug turned on in production!
-DEBUG = True
+DEBUG = False if os.environ.get("PROD") else True
 
 ALLOWED_HOSTS = ["*"]
 
@@ -32,7 +33,6 @@ ALLOWED_HOSTS = ["*"]
 
 INSTALLED_APPS = [
     "tracker.apps.TrackerConfig",
-    "django.contrib.admin",
     "django.contrib.auth",
     "django.contrib.contenttypes",
     "django.contrib.sessions",
@@ -40,6 +40,10 @@ INSTALLED_APPS = [
     "django.contrib.staticfiles",
 ]
 
+if DEBUG:
+    INSTALLED_APPS.append("django_extensions")
+    INSTALLED_APPS.append("django.contrib.admin")
+
 MIDDLEWARE = [
     "django.middleware.security.SecurityMiddleware",
     "django.contrib.sessions.middleware.SessionMiddleware",
@@ -63,6 +67,7 @@ TEMPLATES = [
                 "django.template.context_processors.request",
                 "django.contrib.auth.context_processors.auth",
                 "django.contrib.messages.context_processors.messages",
+                "tracker.views.model_counts",
             ],
         },
     },
@@ -106,7 +111,7 @@ AUTH_PASSWORD_VALIDATORS = [
 
 LANGUAGE_CODE = "en-us"
 
-TIME_ZONE = "UTC"
+TIME_ZONE = "Europe/Prague" if DEBUG else os.environ.get("TZ", "UTC")
 
 USE_I18N = True
 
@@ -117,8 +122,30 @@ USE_TZ = True
 # https://docs.djangoproject.com/en/4.1/howto/static-files/
 
 STATIC_URL = "static/"
+STATIC_ROOT = BASE_DIR / "static"
 
 # Default primary key field type
 # https://docs.djangoproject.com/en/4.1/ref/settings/#default-auto-field
 
 DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
+
+# https://docs.djangoproject.com/en/4.1/topics/logging/
+LOGGING = {
+    "version": 1,
+    "disable_existing_loggers": False,
+    "handlers": {
+        "console": {"class": "logging.StreamHandler"},
+    },
+    "loggers": {
+        "django": {
+            "handlers": ["console"],
+            "level": "INFO",
+        },
+    },
+}
+
+_csrf_trusted_origins = os.environ.get("CSRF_TRUSTED_ORIGINS")
+if _csrf_trusted_origins:
+    CSRF_TRUSTED_ORIGINS = _csrf_trusted_origins.split(",")
+else:
+    CSRF_TRUSTED_ORIGINS = []

src/web/web/urls.py

@@ -13,13 +13,15 @@ Including another URLconf
     1. Import the include() function: from django.urls import include, path
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
+from django.conf import settings
 from django.contrib import admin
 from django.urls import include, path
 from django.views.generic import RedirectView
 
-
 urlpatterns = [
-    path("admin/", admin.site.urls),
     path("", RedirectView.as_view(url="/tracker/list-sessions")),
     path("tracker/", include("tracker.urls")),
 ]
+
+if settings.DEBUG:
+    urlpatterns.append(path("admin/", admin.site.urls))

tests/test_time.py

@@ -0,0 +1,93 @@
+import unittest
+from datetime import timedelta
+
+from web.common.util.time import format_duration
+
+
+class FormatDurationTest(unittest.TestCase):
+    def setUp(self) -> None:
+
+        return super().setUp()
+
+    def test_only_days(self):
+        delta = timedelta(days=3)
+        result = format_duration(delta, "%d days")
+        self.assertEqual(result, "3 days")
+
+    def test_only_hours(self):
+        delta = timedelta(hours=1)
+        result = format_duration(delta, "%H hours")
+        self.assertEqual(result, "1 hours")
+
+    def test_overflow_hours(self):
+        delta = timedelta(hours=25)
+        result = format_duration(delta, "%H hours")
+        self.assertEqual(result, "25 hours")
+
+    def test_overflow_hours_into_days(self):
+        delta = timedelta(hours=25)
+        result = format_duration(delta, "%d days, %H hours")
+        self.assertEqual(result, "1 days, 1 hours")
+
+    def test_only_minutes(self):
+        delta = timedelta(minutes=34)
+        result = format_duration(delta, "%m minutes")
+        self.assertEqual(result, "34 minutes")
+
+    def test_only_overflow_minutes(self):
+        delta = timedelta(minutes=61)
+        result = format_duration(delta, "%m minutes")
+        self.assertEqual(result, "61 minutes")
+
+    def test_overflow_minutes_into_hours(self):
+        delta = timedelta(minutes=61)
+        result = format_duration(delta, "%H hours, %m minutes")
+        self.assertEqual(result, "1 hours, 1 minutes")
+
+    def test_only_overflow_seconds(self):
+        delta = timedelta(seconds=61)
+        result = format_duration(delta, "%s seconds")
+        self.assertEqual(result, "61 seconds")
+
+    def test_overflow_seconds_into_minutes(self):
+        delta = timedelta(seconds=61)
+        result = format_duration(delta, "%m minutes, %s seconds")
+        self.assertEqual(result, "1 minutes, 1 seconds")
+
+    def test_only_rawseconds(self):
+        delta = timedelta(seconds=5690)
+        result = format_duration(delta, "%r total seconds")
+        self.assertEqual(result, "5690 total seconds")
+
+    def test_empty(self):
+        delta = timedelta()
+        result = format_duration(delta, "")
+        self.assertEqual(result, "")
+
+    def test_zero(self):
+        delta = timedelta()
+        result = format_duration(delta, "%r seconds")
+        self.assertEqual(result, "0 seconds")
+
+    def test_all_at_once(self):
+        delta = timedelta(days=50, hours=10, minutes=34, seconds=24)
+        result = format_duration(
+            delta, "%d days, %H hours, %m minutes, %s seconds, %r total seconds"
+        )
+        self.assertEqual(
+            result, "50 days, 10 hours, 34 minutes, 24 seconds, 4358064 total seconds"
+        )
+
+    def test_negative(self):
+        delta = timedelta(hours=-2)
+        result = format_duration(delta, "%H hours")
+        self.assertEqual(result, "0 hours")
+
+    def test_none(self):
+        try:
+            format_duration(None)
+        except TypeError as exc:
+            assert False, f"format_duration(None) raised an exception {exc}"
+
+    def test_number(self):
+        self.assertEqual(format_duration(3600, "%H hour"), "1 hour")