From 9f1eccdf1a25ef0f1bdd4a157bd425c424084650 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luk=C3=A1=C5=A1=20Kucharczyk?= <lukas@kucharczyk.xyz>
Date: Fri, 11 Nov 2022 12:55:09 +0100
Subject: [PATCH] Initial commit

---
 database.sql | 27 +++++++++++++++++++
 tag.sh       | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 103 insertions(+)
 create mode 100644 database.sql
 create mode 100755 tag.sh

diff --git a/database.sql b/database.sql
new file mode 100644
index 0000000..55544fa
--- /dev/null
+++ b/database.sql
@@ -0,0 +1,27 @@
+BEGIN TRANSACTION;
+CREATE TABLE IF NOT EXISTS "tags" (
+	"tid"	INTEGER,
+	"label"	text,
+	PRIMARY KEY("tid" AUTOINCREMENT)
+);
+CREATE TABLE IF NOT EXISTS "files" (
+	"fid"	INTEGER,
+	"filename"	text,
+	PRIMARY KEY("fid" AUTOINCREMENT)
+);
+CREATE TABLE IF NOT EXISTS "tags_ties" (
+	"id"	INTEGER,
+	"tid"	INTEGER,
+	"fid"	INTEGER,
+	PRIMARY KEY("id" AUTOINCREMENT),
+	FOREIGN KEY("tid") REFERENCES "tags_ties"("tid"),
+	FOREIGN KEY("fid") REFERENCES "files"("fid")
+);
+CREATE TABLE IF NOT EXISTS "hashes" (
+	"id"	INTEGER,
+	"md5"	text,
+	"fid"	int,
+	PRIMARY KEY("id" AUTOINCREMENT),
+	FOREIGN KEY("fid") REFERENCES "files"("fid")
+);
+COMMIT;
\ No newline at end of file
diff --git a/tag.sh b/tag.sh
new file mode 100755
index 0000000..617d0b8
--- /dev/null
+++ b/tag.sh
@@ -0,0 +1,76 @@
+#!/usr/bin/env bash
+set -ueo pipefail
+# usage:
+#   - add (tag|filename) $VALUE - adds a new tag or filename of $VALUE
+#   - list (tags|files) - lists all the values in a table
+#   - bytag $TAG - list all files by tag label
+#   - tag $FILENAME $TAG - tag $FILENAME with $TAG, $TAG can be repeated
+#   - listtags $FILENAME - list all tags for $FILENAME
+
+
+fail() {
+    echo "$1" >&2;
+    exit 1
+}
+
+listtags() {
+    [ -z "$1" ] && fail "No filename supplied."
+    FILENAME="$1"
+    sqlite3 -table tags.db "SELECT filename, label from files INNER JOIN tags_ties ON tags_ties.fid = files.fid INNER JOIN tags ON tags.tid = tags_ties.tid WHERE filename = \"$FILENAME\""
+}
+
+if [[ "$1" = "add" ]]; then
+    shift
+    [ "$1" = "tag" ] && TABLE="tags" && COLUMN="label"
+    [ "$1" = "file" ] && TABLE="files" && COLUMN="filename"
+    shift
+    [ -z "$1" ] && fail "No value supplied."
+    COUNTER=0
+    while true; do
+        NEW_TAG="$1"
+        shift
+        sqlite3 -table tags.db "INSERT INTO $TABLE ($COLUMN) VALUES (\"${NEW_TAG}\")"
+        COUNTER=$((COUNTER++))
+        [ -z "${1:-}" ] && break
+    done
+    sqlite3 -table tags.db "SELECT * FROM \"$TABLE\" LIMIT $COUNTER"
+    exit 0
+fi 
+
+if [[ "$1" = "list" ]]; then
+    [ -z "$2" ] && fail "No table supplied."
+    TABLE_NAME="$2"
+    sqlite3 -table tags.db "SELECT * FROM \"${TABLE_NAME}\""
+    exit 0
+fi 
+
+if [[ "$1" = "bytag" ]]; then
+    [ -z "$2" ] && fail "No tag supplied."
+    TAG_NAME="$2"
+    sqlite3 -table tags.db "SELECT filename FROM files WHERE fid = (SELECT fid FROM tags_ties WHERE tid = (SELECT tid FROM tags WHERE label = \"${TAG_NAME}\"))"
+    exit 0
+fi 
+
+if [[ "$1" = "tag" ]]; then
+    shift
+    [ -z "$1" ] && fail "No filename supplied."
+    FILENAME="$1"
+    shift
+    [ -z "$1" ] && fail "No tag supplied."
+    while true; do
+        LABEL="$1"
+        shift
+        sqlite3 -table tags.db "INSERT INTO tags_ties (fid, tid) VALUES ((SELECT fid FROM files WHERE filename = \"$FILENAME\"),(SELECT tid FROM tags WHERE label = \"$LABEL\"))"
+        [ -z "${1:-}" ] && break
+    done
+    listtags "$FILENAME"
+    exit 0
+fi 
+
+if [[ "$1" = "listtags" ]]; then
+    listtags "$2"
+    exit 0
+fi 
+
+
+