import {
  BadRequestException,
  Body,
  Controller,
  Delete,
  Get,
  Param,
  Patch,
  Post,
  Query,
  Res,
  StreamableFile,
  UploadedFile,
  UseGuards,
  UseInterceptors,
} from '@nestjs/common';
import { FileInterceptor } from '@nestjs/platform-express';
import { memoryStorage } from 'multer';
import type { Response } from 'express';
import { JwtAuthGuard } from '../auth/jwt-auth.guard';
import { CurrentUser } from '../auth/current-user.decorator';
import type { Actor } from '../common/record-scope';
import { ActivitiesService } from './activities.service';
import { ActivitiesExcelService } from './activities-excel.service';
import {
  CreateActivityDto,
  ImportActivityRowsDto,
  ListActivitiesQueryDto,
  UpdateActivityDto,
} from './dto';
import { brand } from '@mento/shared';

const excelUpload = FileInterceptor('file', {
  storage: memoryStorage(),
  limits: { fileSize: 15_000_000 },
});

@Controller('activities')
@UseGuards(JwtAuthGuard)
export class ActivitiesController {
  constructor(
    private readonly activitiesService: ActivitiesService,
    private readonly excelService: ActivitiesExcelService,
  ) {}

  @Get('summary')
  summary(@CurrentUser() user: Actor) {
    return this.activitiesService.summary(user.organizationId, user);
  }

  @Get()
  list(
    @CurrentUser() user: Actor,
    @Query() query: ListActivitiesQueryDto,
  ) {
    return this.activitiesService.list(
      user.organizationId,
      user,
      query.filter ?? 'today',
      query.q,
      query.page ?? 1,
      query.limit ?? 50,
      {
        personId: query.personId,
        companyId: query.companyId,
        dealId: query.dealId,
      },
      {
        from: query.from,
        to: query.to,
      },
      query.desk,
      {
        type: query.type,
        status: query.status,
        assigneeId: query.assigneeId,
      },
    );
  }

  @Get('export')
  async export(
    @CurrentUser() user: Actor,
    @Res({ passthrough: true }) res: Response,
  ) {
    const buffer = await this.excelService.export(user);
    res.set({
      'Content-Type':
        'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
      'Content-Disposition': `attachment; filename="${brand.filePrefix}-activities.xlsx"`,
    });
    return new StreamableFile(buffer);
  }

  @Post('import/preview')
  @UseInterceptors(excelUpload)
  importPreview(@UploadedFile() file?: Express.Multer.File) {
    if (!file?.buffer?.length) {
      throw new BadRequestException('فایل ارسال نشده');
    }
    return this.excelService.preview(file);
  }

  @Post('import/prepare')
  @UseInterceptors(excelUpload)
  importPrepare(
    @CurrentUser() user: Actor,
    @UploadedFile() file?: Express.Multer.File,
    @Body('mapping') mapping?: string,
  ) {
    if (!file?.buffer?.length) {
      throw new BadRequestException('فایل ارسال نشده');
    }
    return this.excelService.prepare(user, file, mapping);
  }

  @Get('import/prepare/:sessionId')
  importPrepareStatus(
    @CurrentUser() user: Actor,
    @Param('sessionId') sessionId: string,
  ) {
    return this.excelService.prepareStatus(user, sessionId);
  }

  @Post('import/rows')
  importRows(
    @CurrentUser() user: Actor,
    @Body() dto: ImportActivityRowsDto,
  ) {
    return this.excelService.importRows(user, dto);
  }

  @Post('import')
  @UseInterceptors(excelUpload)
  import(
    @CurrentUser() user: Actor,
    @UploadedFile() file?: Express.Multer.File,
    @Body('mapping') mapping?: string,
    @Body('sessionId') sessionId?: string,
    @Body('offset') offset?: string,
    @Body('limit') limit?: string,
  ) {
    if (!file?.buffer?.length && !sessionId) {
      throw new BadRequestException('فایل ارسال نشده');
    }
    return this.excelService.import(user, file, mapping, {
      sessionId,
      offset,
      limit,
    });
  }

  @Get(':id')
  get(@CurrentUser() user: Actor, @Param('id') id: string) {
    return this.activitiesService.get(user.organizationId, id, user);
  }

  @Post()
  create(@CurrentUser() user: Actor, @Body() dto: CreateActivityDto) {
    return this.activitiesService.create(
      user.organizationId,
      user.userId,
      dto,
      user,
    );
  }

  @Patch(':id')
  update(
    @CurrentUser() user: Actor,
    @Param('id') id: string,
    @Body() dto: UpdateActivityDto,
  ) {
    return this.activitiesService.update(user.organizationId, id, user, dto);
  }

  @Patch(':id/complete')
  complete(@CurrentUser() user: Actor, @Param('id') id: string) {
    return this.activitiesService.complete(user.organizationId, id, user);
  }

  @Delete(':id')
  async remove(@CurrentUser() user: Actor, @Param('id') id: string) {
    await this.activitiesService.remove(user.organizationId, id, user);
    return { ok: true };
  }
}