initial commit

backend/schema.sql

@@ -0,0 +1,39 @@
+PRAGMA foreign_keys = ON;
+
+CREATE TABLE IF NOT EXISTS users (
+    id			TEXT PRIMARY KEY,
+    username	TEXT UNIQUE NOT NULL,
+    password	BLOB
+);
+
+CREATE TABLE IF NOT EXISTS sessions (
+	key			BLOB PRIMARY KEY,
+	user_id		TEXT NOT NULL REFERENCES users(id) ON UPDATE CASCADE,
+	created_at	INT NOT NULL
+);
+
+
+CREATE TABLE IF NOT EXISTS tasks (
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	name TEXT NOT NULL,
+	description TEXT,
+	completed INT NOT NULL,
+	created_by TEXT NOT NULL REFERENCES users(id) ON UPDATE CASCADE,
+	assigned_to TEXT NOT NULL REFERENCES users(id) ON UPDATE CASCADE,
+	created_at INT NOT NULL,
+	deadline INT
+);
+
+CREATE TABLE IF NOT EXISTS categories (
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	name TEXT NOT NULL,
+	description TEXT,
+	created_by TEXT NOT NULL REFERENCES users(id) ON UPDATE CASCADE,
+	created_at INT NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS task_categories (
+	task_id INT NOT NULL REFERENCES tasks(id) ON UPDATE CASCADE,
+	category_id INT NOT NULL REFERENCES category(id) ON UPDATE CASCADE,
+	PRIMARY KEY (task_id, category_id)
+);