import {
  Body,
  Controller,
  Get,
  Param,
  Patch,
  Post,
  UseGuards,
} from '@nestjs/common';
import { ParentsService } from './parents.service';
import { UserService } from '../user/user.service';
import { Parents } from 'src/entities/parents.entity';
import { Users } from 'src/entities/users.entity';
import { Roles } from 'src/common/decorators/roles.decorator';
import { RoleType, StatutUtilisateurType } from 'src/entities/users.entity';
import { ApiBody, ApiOperation, ApiParam, ApiResponse, ApiTags } from '@nestjs/swagger';
import { CreateParentDto } from '../user/dto/create_parent.dto';
import { UpdateParentsDto } from '../user/dto/update_parent.dto';
import { AuthGuard } from 'src/common/guards/auth.guard';
import { RolesGuard } from 'src/common/guards/roles.guard';
import { User } from 'src/common/decorators/user.decorator';
import { PendingFamilyDto } from './dto/pending-family.dto';

@ApiTags('Parents')
@Controller('parents')
@UseGuards(AuthGuard, RolesGuard)
export class ParentsController {
  constructor(
    private readonly parentsService: ParentsService,
    private readonly userService: UserService,
  ) {}

  @Get('pending-families')
  @Roles(RoleType.SUPER_ADMIN, RoleType.ADMINISTRATEUR, RoleType.GESTIONNAIRE)
  @ApiOperation({ summary: 'Liste des familles en attente (une entrée par famille)' })
  @ApiResponse({ status: 200, description: 'Liste des familles (libellé, parentIds, numero_dossier)', type: [PendingFamilyDto] })
  @ApiResponse({ status: 403, description: 'Accès refusé' })
  getPendingFamilies(): Promise<PendingFamilyDto[]> {
    return this.parentsService.getPendingFamilies();
  }

  @Post(':parentId/valider-dossier')
  @Roles(RoleType.SUPER_ADMIN, RoleType.ADMINISTRATEUR, RoleType.GESTIONNAIRE)
  @ApiOperation({ summary: 'Valider tout le dossier famille (les 2 parents en une fois)' })
  @ApiParam({ name: 'parentId', description: "UUID d'un des parents (user_id)" })
  @ApiResponse({ status: 200, description: 'Utilisateurs validés (famille)' })
  @ApiResponse({ status: 404, description: 'Parent introuvable' })
  @ApiResponse({ status: 403, description: 'Accès refusé' })
  async validerDossierFamille(
    @Param('parentId') parentId: string,
    @User() currentUser: Users,
    @Body('comment') comment?: string,
  ): Promise<Users[]> {
    const familyIds = await this.parentsService.getFamilyUserIds(parentId);
    const validated: Users[] = [];
    for (const userId of familyIds) {
      const user = await this.userService.findOne(userId);
      if (user.statut !== StatutUtilisateurType.EN_ATTENTE && user.statut !== StatutUtilisateurType.REFUSE) continue;
      const saved = await this.userService.validateUser(userId, currentUser, comment);
      validated.push(saved);
    }
    return validated;
  }

  @Roles(RoleType.SUPER_ADMIN, RoleType.GESTIONNAIRE, RoleType.ADMINISTRATEUR)
  @Get()
  @ApiResponse({ status: 200, type: [Parents], description: 'Liste des parents' })
  @ApiResponse({ status: 403, description: 'Accès refusé !' })
  getAll(): Promise<Parents[]> {
    return this.parentsService.findAll();
  }

  @Roles(RoleType.SUPER_ADMIN, RoleType.GESTIONNAIRE)
  @Get(':id')
  @ApiResponse({ status: 200, type: Parents, description: 'Détails du parent par ID utilisateur' })
  @ApiResponse({ status: 404, description: 'Parent non trouvé' })
  @ApiResponse({ status: 403, description: 'Accès refusé !' })
  getOne(@Param('id') user_id: string): Promise<Parents> {
    return this.parentsService.findOne(user_id);
  }

  @Roles(RoleType.SUPER_ADMIN, RoleType.GESTIONNAIRE)
  @Post()
  @ApiBody({ type: CreateParentDto })
  @ApiResponse({ status: 201, type: Parents, description: 'Parent créé avec succès' })
  @ApiResponse({ status: 403, description: 'Accès refusé !' })
  create(@Body() dto: CreateParentDto): Promise<Parents> {
    return this.parentsService.create(dto);
  }

  @Roles(RoleType.SUPER_ADMIN, RoleType.GESTIONNAIRE)
  @Patch(':id')
  @ApiBody({ type: UpdateParentsDto })
  @ApiResponse({ status: 200, type: Parents, description: 'Parent mis à jour avec succès' })
  @ApiResponse({ status: 404, description: 'Parent introuvable' })
  @ApiResponse({ status: 403, description: 'Accès refusé !' })
  update(@Param('id') id: string, @Body() dto: UpdateParentsDto): Promise<Parents> {
    return this.parentsService.update(id, dto);
  }
}