import {
  Body,
  Controller,
  Delete,
  Get,
  Param,
  Patch,
  Post,
  Query,
  Req,
  UseGuards,
} from '@nestjs/common';
import { ApiBearerAuth, ApiOperation, ApiTags } from '@nestjs/swagger';
import { JwtAuthGuard } from '../auth/guards/jwt-auth.guard';
import { AcceptOrganizationInviteDto } from './dto/accept-organization-invite.dto';
import { CreateLinkRequestDto } from './dto/create-link-request.dto';
import { InviteOrganizationDto } from './dto/invite-organization.dto';
import { PreviewOrganizationInviteDto } from './dto/preview-organization-invite.dto';
import { RespondLinkRequestDto } from './dto/respond-link-request.dto';
import { OrganizationService } from './organization.service';

@ApiTags('organizations')
@ApiBearerAuth('JWT-auth')
@Controller('organizations')
export class OrganizationController {
  constructor(private readonly organizationService: OrganizationService) {}

  @Get('invitations/preview')
  @ApiOperation({ summary: 'Preview organization invite by token (public)' })
  previewInvite(@Query() query: PreviewOrganizationInviteDto) {
    return this.organizationService.previewInvite(query.token);
  }

  @Get('invitations')
  @UseGuards(JwtAuthGuard)
  @ApiOperation({ summary: 'List invitation history for current organization' })
  listInvitations(@Req() req: { user: { id: string; organizationId?: string } }) {
    const organizationId = this.organizationService.getOrganizationIdFromUser(req.user);
    return this.organizationService.listInvitationHistory(req.user.id, organizationId);
  }

  @Post('invitations/accept')
  @ApiOperation({ summary: 'Accept organization invite and create/link counterpart org (public)' })
  acceptInvite(@Body() dto: AcceptOrganizationInviteDto) {
    return this.organizationService.acceptInvite(dto);
  }

  @Get('search')
  @UseGuards(JwtAuthGuard)
  @ApiOperation({
    summary: 'Search counterpart organizations (active subscription only)',
  })
  search(
    @Req() req: { user: { id: string; organizationId?: string } },
    @Query('q') q = '',
  ) {
    const organizationId = this.organizationService.getOrganizationIdFromUser(req.user);
    return this.organizationService.searchCounterpartOrganizations(req.user.id, organizationId, q);
  }

  @Get('links')
  @UseGuards(JwtAuthGuard)
  @ApiOperation({ summary: 'List counterpart links and invitations for current org' })
  list(@Req() req: { user: { id: string; organizationId?: string } }) {
    const organizationId = this.organizationService.getOrganizationIdFromUser(req.user);
    return this.organizationService.list(req.user.id, organizationId);
  }

  @Post('links')
  @UseGuards(JwtAuthGuard)
  @ApiOperation({ summary: 'Create pending link request to an existing subscribed counterpart org' })
  createLinkRequest(
    @Req() req: { user: { id: string; organizationId?: string } },
    @Body() dto: CreateLinkRequestDto,
  ) {
    const organizationId = this.organizationService.getOrganizationIdFromUser(req.user);
    return this.organizationService.createLinkRequest(req.user.id, organizationId, dto);
  }

  @Patch('links/:linkId/respond')
  @UseGuards(JwtAuthGuard)
  @ApiOperation({ summary: 'Accept or reject a pending link request for current organization' })
  respondToLinkRequest(
    @Req() req: { user: { id: string; organizationId?: string } },
    @Param('linkId') linkId: string,
    @Body() dto: RespondLinkRequestDto,
  ) {
    const organizationId = this.organizationService.getOrganizationIdFromUser(req.user);
    return this.organizationService.respondToLinkRequest(req.user.id, organizationId, linkId, dto);
  }

  @Delete('links/:linkId')
  @UseGuards(JwtAuthGuard)
  @ApiOperation({ summary: 'Delete linked organization record' })
  deleteLink(
    @Req() req: { user: { id: string; organizationId?: string } },
    @Param('linkId') linkId: string,
  ) {
    const organizationId = this.organizationService.getOrganizationIdFromUser(req.user);
    return this.organizationService.deleteLink(req.user.id, organizationId, linkId);
  }

  @Post('invitations/:invitationId/link')
  @UseGuards(JwtAuthGuard)
  @ApiOperation({ summary: 'Get a shareable invite link for a pending invitation' })
  getInvitationLink(
    @Req() req: { user: { id: string; organizationId?: string } },
    @Param('invitationId') invitationId: string,
  ) {
    const organizationId = this.organizationService.getOrganizationIdFromUser(req.user);
    return this.organizationService.getInvitationLink(req.user.id, organizationId, invitationId);
  }

  @Post('invite')
  @UseGuards(JwtAuthGuard)
  @ApiOperation({ summary: 'Create invite link for owner of not-yet-subscribed counterpart org' })
  inviteOrganization(
    @Req() req: { user: { id: string; organizationId?: string } },
    @Body() dto: InviteOrganizationDto,
  ) {
    const organizationId = this.organizationService.getOrganizationIdFromUser(req.user);
    return this.organizationService.inviteOrganization(req.user.id, organizationId, dto);
  }
}