import {
  Body,
  Controller,
  Delete,
  Get,
  Param,
  ParseIntPipe,
  Post,
  Put,
  Query,
  UseGuards,
} from '@nestjs/common';
import { JwtAuthGuard } from '../auth/guards/jwt-auth.guard';
import { PermissionsGuard } from '../auth/guards/permissions.guard';
import { Permissions } from '../auth/permissions.decorator';
import { ContentBlocksService } from './content-blocks.service';
import { CreateContentBlockDto, UpdateContentBlockDto } from './dto/content-block.dto';
import { ReorderDto } from '../common/dto/reorder.dto';
import { CONTENT_BLOCK_TYPES } from './content-block.entity';

@Controller('api/v1/admin/content-blocks')
@UseGuards(JwtAuthGuard, PermissionsGuard)
export class ContentBlocksController {
  constructor(private readonly service: ContentBlocksService) {}

  /** Lets the admin panel build its block palette from the API instead of hard-coding it. */
  @Get('types')
  @Permissions('activity.view')
  types() {
    return { success: true, message: 'Success', data: CONTENT_BLOCK_TYPES };
  }

  @Get()
  @Permissions('activity.view')
  async findByActivity(@Query('activityId', ParseIntPipe) activityId: number) {
    const data = await this.service.findByActivity(activityId);
    return { success: true, message: 'Success', data };
  }

  @Get(':id')
  @Permissions('activity.view')
  async findById(@Param('id', ParseIntPipe) id: number) {
    const block = await this.service.findById(id);
    if (!block) return { success: false, message: 'Content block not found' };
    return { success: true, message: 'Success', data: block };
  }

  @Post()
  @Permissions('activity.create')
  async create(@Body() dto: CreateContentBlockDto) {
    const data = await this.service.create(dto);
    return { success: true, message: 'Content block created', data };
  }

  @Put(':id')
  @Permissions('activity.update')
  async update(@Param('id', ParseIntPipe) id: number, @Body() dto: UpdateContentBlockDto) {
    const data = await this.service.update(id, dto);
    return { success: true, message: 'Content block updated', data };
  }

  @Post('reorder')
  @Permissions('activity.update')
  async reorder(@Body() dto: ReorderDto) {
    await this.service.reorder(dto.items);
    return { success: true, message: 'Content blocks reordered' };
  }

  @Delete(':id')
  @Permissions('activity.delete')
  async delete(@Param('id', ParseIntPipe) id: number) {
    const success = await this.service.delete(id);
    return { success, message: success ? 'Content block deleted' : 'Content block not found' };
  }
}