import { describe, it, expect, vi } from 'vitest';

// Mock db module
vi.mock('./db', () => ({
  getRequestById: vi.fn(),
  getAssociationByUserId: vi.fn(),
  getAssociationById: vi.fn(),
  getDocumentById: vi.fn(),
  getRequestHistoryByRequestId: vi.fn(),
  deleteRequest: vi.fn(),
  createAuditLog: vi.fn(),
}));

import * as db from './db';

describe('Request Detail & Delete Logic', () => {
  describe('getById enrichment', () => {
    it('should return associationInfo when association exists', async () => {
      const mockAssociation = {
        id: 1,
        nomAssociation: 'Association Test',
        siret: '12345678901234',
        adresse: '10 rue de la Paix',
        codePostal: '97300',
        ville: 'Cayenne',
        telephone: '0594123456',
        emailContact: 'test@asso.fr',
        nomRepresentant: 'Jean Dupont',
      };

      (db.getAssociationById as any).mockResolvedValue(mockAssociation);

      const result = await db.getAssociationById(1);
      expect(result).toBeDefined();
      expect(result?.nomAssociation).toBe('Association Test');
      expect(result?.siret).toBe('12345678901234');
      expect(result?.telephone).toBe('0594123456');
    });

    it('should return null when association does not exist', async () => {
      (db.getAssociationById as any).mockResolvedValue(null);

      const result = await db.getAssociationById(999);
      expect(result).toBeNull();
    });

    it('should resolve attached documents from documentsJoints JSON', async () => {
      const mockDoc1 = { id: 1, nom: 'Statuts', type: 'statuts', fileSize: 1024 };
      const mockDoc2 = { id: 2, nom: 'RIB', type: 'rib', fileSize: 2048 };

      (db.getDocumentById as any)
        .mockResolvedValueOnce(mockDoc1)
        .mockResolvedValueOnce(mockDoc2);

      const documentsJoints = JSON.stringify([1, 2]);
      const docIds = JSON.parse(documentsJoints) as number[];
      
      const docs = await Promise.all(
        docIds.map(async (docId: number) => {
          const doc = await db.getDocumentById(docId);
          return doc || null;
        })
      );
      const attachedDocuments = docs.filter(Boolean);

      expect(attachedDocuments).toHaveLength(2);
      expect(attachedDocuments[0]?.nom).toBe('Statuts');
      expect(attachedDocuments[1]?.nom).toBe('RIB');
    });

    it('should handle empty documentsJoints gracefully', () => {
      const documentsJoints = null;
      let attachedDocuments: any[] = [];
      
      if (documentsJoints) {
        try {
          const docIds = JSON.parse(documentsJoints) as number[];
          // would process here
        } catch {
          // ignore
        }
      }

      expect(attachedDocuments).toHaveLength(0);
    });

    it('should handle invalid JSON in documentsJoints', () => {
      const documentsJoints = 'not-json';
      let attachedDocuments: any[] = [];
      
      if (documentsJoints) {
        try {
          const docIds = JSON.parse(documentsJoints) as number[];
          attachedDocuments = docIds as any[];
        } catch {
          // ignore parse errors
        }
      }

      expect(attachedDocuments).toHaveLength(0);
    });
  });

  describe('delete request', () => {
    it('should allow deletion of a brouillon request by the owning association', async () => {
      const mockRequest = {
        id: 1,
        associationId: 10,
        status: 'brouillon',
        titre: 'Ma demande',
        type: 'subvention_fonctionnement',
      };
      const mockAssociation = { id: 10, userId: 5 };

      (db.getRequestById as any).mockResolvedValue(mockRequest);
      (db.getAssociationByUserId as any).mockResolvedValue(mockAssociation);
      (db.deleteRequest as any).mockResolvedValue(undefined);

      // Simulate the logic
      const request = await db.getRequestById(1);
      const association = await db.getAssociationByUserId(5);

      expect(request).toBeDefined();
      expect(association).toBeDefined();
      expect(request!.associationId).toBe(association!.id);
      expect(request!.status).not.toBe('validee');
      expect(request!.status).not.toBe('refusee');

      await db.deleteRequest(1);
      expect(db.deleteRequest).toHaveBeenCalledWith(1);
    });

    it('should reject deletion of a validated request', async () => {
      const mockRequest = {
        id: 2,
        associationId: 10,
        status: 'validee',
        titre: 'Demande validée',
        type: 'subvention_projet',
      };

      (db.getRequestById as any).mockResolvedValue(mockRequest);

      const request = await db.getRequestById(2);
      expect(request!.status).toBe('validee');
      
      // The router would throw a TRPCError here
      const canDelete = request!.status !== 'validee' && request!.status !== 'refusee';
      expect(canDelete).toBe(false);
    });

    it('should reject deletion of a refused request', async () => {
      const mockRequest = {
        id: 3,
        associationId: 10,
        status: 'refusee',
        titre: 'Demande refusée',
        type: 'demande_salle',
      };

      (db.getRequestById as any).mockResolvedValue(mockRequest);

      const request = await db.getRequestById(3);
      const canDelete = request!.status !== 'validee' && request!.status !== 'refusee';
      expect(canDelete).toBe(false);
    });

    it('should reject deletion by a non-owning association', async () => {
      const mockRequest = {
        id: 4,
        associationId: 10,
        status: 'soumise',
        titre: 'Demande autre asso',
        type: 'autre',
      };
      const mockAssociation = { id: 20, userId: 8 }; // Different association

      (db.getRequestById as any).mockResolvedValue(mockRequest);
      (db.getAssociationByUserId as any).mockResolvedValue(mockAssociation);

      const request = await db.getRequestById(4);
      const association = await db.getAssociationByUserId(8);

      // Association ID mismatch
      expect(request!.associationId).not.toBe(association!.id);
    });

    it('should allow deletion of a submitted request', async () => {
      const mockRequest = {
        id: 5,
        associationId: 10,
        status: 'soumise',
        titre: 'Demande soumise',
        type: 'subvention_fonctionnement',
      };

      (db.getRequestById as any).mockResolvedValue(mockRequest);
      (db.deleteRequest as any).mockResolvedValue(undefined);

      const request = await db.getRequestById(5);
      const canDelete = request!.status !== 'validee' && request!.status !== 'refusee';
      expect(canDelete).toBe(true);

      await db.deleteRequest(5);
      expect(db.deleteRequest).toHaveBeenCalledWith(5);
    });

    it('should allow deletion of a request in information_complementaire status', async () => {
      const mockRequest = {
        id: 6,
        associationId: 10,
        status: 'information_complementaire',
        titre: 'Demande info comp',
        type: 'agrement_sport',
      };

      (db.getRequestById as any).mockResolvedValue(mockRequest);

      const request = await db.getRequestById(6);
      const canDelete = request!.status !== 'validee' && request!.status !== 'refusee';
      expect(canDelete).toBe(true);
    });
  });
});
