Initial habit tracker project

2026-07-10 16:18:31 +02:00
commit 23416ee382
20 changed files with 1157 additions and 0 deletions
@@ -0,0 +1,110 @@
+<?php
+
+class Habit
+{
+    public static function allForUser(int $userId, array $filters = []): array
+    {
+        $where = ['h.user_id = :user_id'];
+        $params = ['user_id' => $userId];
+
+        if (!empty($filters['category_id'])) {
+            $where[] = 'h.category_id = :category_id';
+            $params['category_id'] = (int) $filters['category_id'];
+        }
+
+        if (($filters['status'] ?? '') === 'done') {
+            $where[] = 'hl.id IS NOT NULL';
+        } elseif (($filters['status'] ?? '') === 'open') {
+            $where[] = 'hl.id IS NULL';
+        }
+
+        $sql = 'SELECT h.*, c.name AS category_name, c.color AS category_color,
+                    CASE WHEN hl.id IS NULL THEN 0 ELSE 1 END AS done_today
+                FROM habits h
+                LEFT JOIN categories c ON c.id = h.category_id
+                LEFT JOIN habit_logs hl
+                    ON hl.habit_id = h.id
+                    AND hl.completed_on = CURRENT_DATE
+                WHERE ' . implode(' AND ', $where) . '
+                ORDER BY h.created_at DESC';
+
+        $statement = Database::connection()->prepare($sql);
+        $statement->execute($params);
+
+        return $statement->fetchAll();
+    }
+
+    public static function findForUser(int $id, int $userId): ?array
+    {
+        $statement = Database::connection()->prepare(
+            'SELECT * FROM habits WHERE id = :id AND user_id = :user_id LIMIT 1'
+        );
+        $statement->execute(['id' => $id, 'user_id' => $userId]);
+
+        $habit = $statement->fetch();
+        return $habit ?: null;
+    }
+
+    public static function create(int $userId, array $data): bool
+    {
+        $sql = 'INSERT INTO habits (user_id, category_id, title, description, target_per_week)
+                VALUES (:user_id, :category_id, :title, :description, :target_per_week)';
+
+        return Database::connection()->prepare($sql)->execute([
+            'user_id' => $userId,
+            'category_id' => $data['category_id'] ?: null,
+            'title' => $data['title'],
+            'description' => $data['description'],
+            'target_per_week' => (int) $data['target_per_week'],
+        ]);
+    }
+
+    public static function update(int $id, int $userId, array $data): bool
+    {
+        $sql = 'UPDATE habits
+                SET category_id = :category_id,
+                    title = :title,
+                    description = :description,
+                    target_per_week = :target_per_week
+                WHERE id = :id AND user_id = :user_id';
+
+        return Database::connection()->prepare($sql)->execute([
+            'id' => $id,
+            'user_id' => $userId,
+            'category_id' => $data['category_id'] ?: null,
+            'title' => $data['title'],
+            'description' => $data['description'],
+            'target_per_week' => (int) $data['target_per_week'],
+        ]);
+    }
+
+    public static function delete(int $id, int $userId): bool
+    {
+        $statement = Database::connection()->prepare('DELETE FROM habits WHERE id = :id AND user_id = :user_id');
+
+        return $statement->execute(['id' => $id, 'user_id' => $userId]);
+    }
+
+    public static function toggleToday(int $id, int $userId): bool
+    {
+        $habit = self::findForUser($id, $userId);
+
+        if (!$habit) {
+            return false;
+        }
+
+        $db = Database::connection();
+        $check = $db->prepare(
+            'SELECT id FROM habit_logs WHERE habit_id = :habit_id AND completed_on = CURRENT_DATE LIMIT 1'
+        );
+        $check->execute(['habit_id' => $id]);
+        $log = $check->fetch();
+
+        if ($log) {
+            return $db->prepare('DELETE FROM habit_logs WHERE id = :id')->execute(['id' => $log['id']]);
+        }
+
+        $insert = $db->prepare('INSERT INTO habit_logs (habit_id, completed_on) VALUES (:habit_id, CURRENT_DATE)');
+        return $insert->execute(['habit_id' => $id]);
+    }
+}