import { describe, it, expect, beforeEach } from 'vitest';
import { appRouter } from './index';

describe('tRPC API Layer - Character System', () => {
  let ctx: { userId: string };
  let projectId: string;

  beforeEach(async () => {
    ctx = { userId: '123e4567-e89b-12d3-a456-426614174000' };
    const project = await appRouter.project.createProject.mutate({
      input: { name: 'Character System Test Project' },
      ctx,
    });
    projectId = project.id;
  });

  describe('createCharacter', () => {
    it('should create a character with all profile fields', async () => {
      const character = await appRouter.project.createCharacter.mutate({
        input: {
          name: 'John Doe',
          bio: 'A brave hero',
          role: 'protagonist',
          arc: 'Grows from coward to leader',
          arcType: 'positive',
          age: 30,
          gender: 'male',
          voice: 'Deep, commanding',
          traits: 'Brave, loyal, stubborn',
          motivation: 'Protect his family',
          conflict: 'Internal fear of failure',
          secret: 'Afraid of heights',
          projectId,
        },
        ctx,
      });

      expect(character).toMatchObject({
        name: 'John Doe',
        bio: 'A brave hero',
        role: 'protagonist',
        arcType: 'positive',
        age: 30,
        projectId,
      });
      expect(character.slug).toBe('john-doe');
    });

    it('should default role to supporting when not provided', async () => {
      const character = await appRouter.project.createCharacter.mutate({
        input: {
          name: 'Jane Smith',
          projectId,
        },
        ctx,
      });

      expect(character.role).toBe('supporting');
    });
  });

  describe('updateCharacter', () => {
    it('should update character profile fields', async () => {
      const created = await appRouter.project.createCharacter.mutate({
        input: { name: 'Original', projectId },
        ctx,
      });

      const updated = await appRouter.project.updateCharacter.mutate({
        input: {
          id: created.id,
          name: 'Updated Name',
          bio: 'New bio',
          role: 'antagonist',
        },
        ctx,
      });

      expect(updated.name).toBe('Updated Name');
      expect(updated.slug).toBe('updated-name');
      expect(updated.bio).toBe('New bio');
      expect(updated.role).toBe('antagonist');
    });
  });

  describe('searchCharacters', () => {
    it('should filter characters by query', async () => {
      await appRouter.project.createCharacter.mutate({
        input: { name: 'Alice', bio: 'The hero', projectId },
        ctx,
      });
      await appRouter.project.createCharacter.mutate({
        input: { name: 'Bob', bio: 'The villain', projectId },
        ctx,
      });

      const results = await appRouter.project.searchCharacters.query({
        input: { projectId, query: 'hero' },
        ctx,
      });

      expect(results.length).toBe(1);
      expect(results[0].name).toBe('Alice');
    });

    it('should filter characters by role', async () => {
      await appRouter.project.createCharacter.mutate({
        input: { name: 'Protag', role: 'protagonist', projectId },
        ctx,
      });
      await appRouter.project.createCharacter.mutate({
        input: { name: 'Antag', role: 'antagonist', projectId },
        ctx,
      });

      const results = await appRouter.project.searchCharacters.query({
        input: { projectId, role: 'protagonist' },
        ctx,
      });

      expect(results.length).toBe(1);
      expect(results[0].name).toBe('Protag');
    });
  });

  describe('createRelationship', () => {
    it('should create a relationship between two characters', async () => {
      const charA = await appRouter.project.createCharacter.mutate({
        input: { name: 'Character A', projectId },
        ctx,
      });
      const charB = await appRouter.project.createCharacter.mutate({
        input: { name: 'Character B', projectId },
        ctx,
      });

      const rel = await appRouter.project.createRelationship.mutate({
        input: {
          characterIdA: charA.id,
          characterIdB: charB.id,
          relationshipType: 'friendship',
          strength: 80,
          isAntagonistic: false,
        },
        ctx,
      });

      expect(rel.characterIdA).toBe(charA.id);
      expect(rel.characterIdB).toBe(charB.id);
      expect(rel.relationshipType).toBe('friendship');
      expect(rel.strength).toBe(80);
    });

    it('should prevent self-relationships', async () => {
      const charA = await appRouter.project.createCharacter.mutate({
        input: { name: 'Character A', projectId },
        ctx,
      });

      await expect(
        appRouter.project.createRelationship.mutate({
          input: {
            characterIdA: charA.id,
            characterIdB: charA.id,
            relationshipType: 'friendship',
          },
          ctx,
        })
      ).rejects.toThrow('Cannot create a relationship with the same character');
    });

    it('should prevent duplicate relationships', async () => {
      const charA = await appRouter.project.createCharacter.mutate({
        input: { name: 'Character A', projectId },
        ctx,
      });
      const charB = await appRouter.project.createCharacter.mutate({
        input: { name: 'Character B', projectId },
        ctx,
      });

      await appRouter.project.createRelationship.mutate({
        input: {
          characterIdA: charA.id,
          characterIdB: charB.id,
          relationshipType: 'friendship',
        },
        ctx,
      });

      await expect(
        appRouter.project.createRelationship.mutate({
          input: {
            characterIdA: charA.id,
            characterIdB: charB.id,
            relationshipType: 'rivalry',
          },
          ctx,
        })
      ).rejects.toThrow('Relationship already exists between these characters');
    });
  });

  describe('deleteCharacter', () => {
    it('should remove associated relationships when deleting a character', async () => {
      const charA = await appRouter.project.createCharacter.mutate({
        input: { name: 'Character A', projectId },
        ctx,
      });
      const charB = await appRouter.project.createCharacter.mutate({
        input: { name: 'Character B', projectId },
        ctx,
      });

      await appRouter.project.createRelationship.mutate({
        input: {
          characterIdA: charA.id,
          characterIdB: charB.id,
          relationshipType: 'friendship',
        },
        ctx,
      });

      await appRouter.project.deleteCharacter.mutate({
        input: { id: charA.id },
        ctx,
      });

      const rels = await appRouter.project.getRelationshipsForCharacter.query({
        input: { characterId: charB.id },
        ctx,
      });

      expect(rels.length).toBe(0);
    });
  });

  describe('getCharacterStats', () => {
    it('should return stats for a character', async () => {
      const charA = await appRouter.project.createCharacter.mutate({
        input: { name: 'TestChar', projectId },
        ctx,
      });

      const stats = await appRouter.project.getCharacterStats.query({
        input: { characterId: charA.id },
        ctx,
      });

      expect(stats.characterId).toBe(charA.id);
      expect(stats.sceneCount).toBe(0);
      expect(stats.totalDialogueLines).toBe(0);
      expect(stats.relationshipCount).toBe(0);
    });
  });
});