import { describe, it, expect, beforeEach } from 'vitest';
import { appRouter } from './index';
import { getTestDb, resetTestDb } from './test-setup';
import type { TRPCContext } from './types';

describe('tRPC API Layer', () => {
  let ctx: TRPCContext;
  let caller: ReturnType<typeof appRouter.createCaller>;
  let projectId: number;

  beforeEach(async () => {
    await resetTestDb();
    const db = await getTestDb();
    ctx = { userId: 1, db };
    caller = appRouter.createCaller(ctx);
  });

  describe('Project CRUD', () => {
    it('should create a project', async () => {
      const project = await caller.project.createProject({
        name: 'Test Project',
        description: 'A test project',
      });

      expect(project).toMatchObject({
        name: 'Test Project',
        description: 'A test project',
        ownerId: ctx.userId,
      });
      expect(project.id).toBeDefined();
      expect(project.id).toBeGreaterThan(0);
      expect(project.createdAt).toBeInstanceOf(Date);
      expect(project.updatedAt).toBeInstanceOf(Date);
    });

    it('should list projects', async () => {
      await caller.project.createProject({ name: 'Test Project' });

      const projects = await caller.project.listProjects();

      expect(Array.isArray(projects)).toBe(true);
      expect(projects.length).toBeGreaterThan(0);
    });

    it('should get a specific project', async () => {
      const created = await caller.project.createProject({ name: 'Get Test' });

      const project = await caller.project.getProject({ id: created.id });

      expect(project.id).toBe(created.id);
      expect(project.name).toBe('Get Test');
    });

    it('should update a project', async () => {
      const created = await caller.project.createProject({ name: 'Update Test' });

      const updated = await caller.project.updateProject({
        id: created.id,
        name: 'Updated Test',
        description: 'Updated description',
      });

      expect(updated.name).toBe('Updated Test');
      expect(updated.description).toBe('Updated description');
    });

    it('should delete a project', async () => {
      const created = await caller.project.createProject({ name: 'Delete Test' });

      const result = await caller.project.deleteProject({ id: created.id });

      expect(result).toEqual({ success: true });
    });
  });

  describe('Character CRUD', () => {
    beforeEach(async () => {
      const project = await caller.project.createProject({
        name: 'Character Test Project',
      });
      projectId = project.id;
    });

    it('should create a character', async () => {
      const character = await caller.project.createCharacter({
        name: 'John Doe',
        description: 'Main character',
        projectId,
      });

      expect(character).toMatchObject({
        name: 'John Doe',
        description: 'Main character',
        projectId,
      });
    });

    it('should list characters for a project', async () => {
      await caller.project.createCharacter({ name: 'Char 1', projectId });

      const characters = await caller.project.listCharacters({ projectId });

      expect(characters.length).toBeGreaterThan(0);
    });
  });

  describe('Scene CRUD', () => {
    beforeEach(async () => {
      const project = await caller.project.createProject({
        name: 'Scene Test Project',
      });
      projectId = project.id;
    });

    it('should create a scene', async () => {
      const scene = await caller.project.createScene({
        title: 'INT. OFFICE - DAY',
        content: 'John sits at his desk.',
        projectId,
        order: 1,
      });

      expect(scene).toMatchObject({
        title: 'INT. OFFICE - DAY',
        content: 'John sits at his desk.',
        projectId,
        order: 1,
      });
    });

    it('should list scenes for a project', async () => {
      await caller.project.createScene({ title: 'Scene 1', projectId, order: 1 });

      const scenes = await caller.project.listScenes({ projectId });

      expect(scenes.length).toBeGreaterThan(0);
    });

    it('should update scene order', async () => {
      const scene = await caller.project.createScene({
        title: 'Reorder Scene',
        projectId,
        order: 1,
      });

      const updated = await caller.project.updateScene({ id: scene.id, order: 5 });

      expect(updated.order).toBe(5);
    });
  });

  describe('Error Handling', () => {
    it('should throw error when getting non-existent project', async () => {
      await expect(
        caller.project.getProject({ id: 99999 })
      ).rejects.toThrow('not found');
    });

    it('should throw error when deleting non-existent project', async () => {
      await expect(
        caller.project.deleteProject({ id: 99999 })
      ).rejects.toThrow('not found');
    });
  });
});