import { eq, type Db, tasks } from '@mosaic/db';

export type Task = typeof tasks.$inferSelect;
export type NewTask = typeof tasks.$inferInsert;

export function createTasksRepo(db: Db) {
  return {
    async findAll(): Promise<Task[]> {
      return db.select().from(tasks);
    },

    async findById(id: string): Promise<Task | undefined> {
      const rows = await db.select().from(tasks).where(eq(tasks.id, id));
      return rows[0];
    },

    async findByProject(projectId: string): Promise<Task[]> {
      return db.select().from(tasks).where(eq(tasks.projectId, projectId));
    },

    async findByMission(missionId: string): Promise<Task[]> {
      return db.select().from(tasks).where(eq(tasks.missionId, missionId));
    },

    async findByStatus(status: Task['status']): Promise<Task[]> {
      return db.select().from(tasks).where(eq(tasks.status, status));
    },

    async create(data: NewTask): Promise<Task> {
      const rows = await db.insert(tasks).values(data).returning();
      return rows[0]!;
    },

    async update(id: string, data: Partial<NewTask>): Promise<Task | undefined> {
      const rows = await db
        .update(tasks)
        .set({ ...data, updatedAt: new Date() })
        .where(eq(tasks.id, id))
        .returning();
      return rows[0];
    },

    async remove(id: string): Promise<boolean> {
      const rows = await db.delete(tasks).where(eq(tasks.id, id)).returning();
      return rows.length > 0;
    },
  };
}

export type TasksRepo = ReturnType<typeof createTasksRepo>;