Initial habit tracker project

database/schema.sql

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+CREATE DATABASE IF NOT EXISTS pbbfa24aal_habittracker
+    CHARACTER SET utf8mb4
+    COLLATE utf8mb4_unicode_ci;
+
+USE pbbfa24aal_habittracker;
+
+CREATE TABLE users (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    name VARCHAR(100) NOT NULL,
+    email VARCHAR(190) NOT NULL UNIQUE,
+    password_hash VARCHAR(255) NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE TABLE categories (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    name VARCHAR(80) NOT NULL,
+    color VARCHAR(20) NOT NULL DEFAULT '#176b5b'
+);
+
+CREATE TABLE habits (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    user_id INT NOT NULL,
+    category_id INT NULL,
+    title VARCHAR(120) NOT NULL,
+    description TEXT NULL,
+    target_per_week TINYINT UNSIGNED NOT NULL DEFAULT 3,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
+    FOREIGN KEY (category_id) REFERENCES categories(id) ON DELETE SET NULL
+);
+
+CREATE TABLE habit_logs (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    habit_id INT NOT NULL,
+    completed_on DATE NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    UNIQUE KEY unique_habit_day (habit_id, completed_on),
+    FOREIGN KEY (habit_id) REFERENCES habits(id) ON DELETE CASCADE
+);
+
+CREATE TABLE reminders (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    habit_id INT NOT NULL,
+    reminder_time TIME NOT NULL,
+    weekday TINYINT UNSIGNED NULL,
+    is_active TINYINT(1) NOT NULL DEFAULT 1,
+    FOREIGN KEY (habit_id) REFERENCES habits(id) ON DELETE CASCADE
+);
+
+INSERT INTO categories (name, color) VALUES
+    ('Gesundheit', '#176b5b'),
+    ('Lernen', '#365c9a'),
+    ('Sport', '#b95c20'),
+    ('Alltag', '#6b4ba3');