import {
  Body,
  Controller,
  Delete,
  Get,
  Param,
  Post,
  UseGuards,
} from '@nestjs/common';
import { isOk } from '@manacore/shared-errors';
import { DocumentService } from './document.service';
import { type Document } from '../db/schema/documents.schema';
import { JwtAuthGuard } from '../common/guards/jwt-auth.guard';
import {
  CurrentUser,
  CurrentUserData,
} from '../common/decorators/current-user.decorator';

@Controller('documents')
@UseGuards(JwtAuthGuard)
export class DocumentController {
  constructor(private readonly documentService: DocumentService) {}

  @Get('conversation/:conversationId')
  async getLatestDocument(
    @Param('conversationId') conversationId: string,
    @CurrentUser() user: CurrentUserData,
  ): Promise<Document | null> {
    const result = await this.documentService.getLatestDocument(
      conversationId,
      user.userId,
    );

    if (!isOk(result)) {
      throw result.error;
    }

    return result.value;
  }

  @Get('conversation/:conversationId/versions')
  async getAllDocumentVersions(
    @Param('conversationId') conversationId: string,
    @CurrentUser() user: CurrentUserData,
  ): Promise<Document[]> {
    const result = await this.documentService.getAllDocumentVersions(
      conversationId,
      user.userId,
    );

    if (!isOk(result)) {
      throw result.error;
    }

    return result.value;
  }

  @Get('conversation/:conversationId/exists')
  async hasDocument(
    @Param('conversationId') conversationId: string,
    @CurrentUser() user: CurrentUserData,
  ): Promise<{ exists: boolean }> {
    const result = await this.documentService.hasDocument(
      conversationId,
      user.userId,
    );

    if (!isOk(result)) {
      throw result.error;
    }

    return { exists: result.value };
  }

  @Post('conversation/:conversationId')
  async createDocument(
    @Param('conversationId') conversationId: string,
    @Body() body: { content: string },
    @CurrentUser() user: CurrentUserData,
  ): Promise<Document> {
    const result = await this.documentService.createDocument(
      conversationId,
      user.userId,
      body.content,
    );

    if (!isOk(result)) {
      throw result.error;
    }

    return result.value;
  }

  @Post('conversation/:conversationId/version')
  async createDocumentVersion(
    @Param('conversationId') conversationId: string,
    @Body() body: { content: string },
    @CurrentUser() user: CurrentUserData,
  ): Promise<Document> {
    const result = await this.documentService.createDocumentVersion(
      conversationId,
      user.userId,
      body.content,
    );

    if (!isOk(result)) {
      throw result.error;
    }

    return result.value;
  }

  @Delete(':id')
  async deleteDocumentVersion(
    @Param('id') id: string,
    @CurrentUser() user: CurrentUserData,
  ): Promise<{ success: boolean }> {
    const result = await this.documentService.deleteDocumentVersion(
      id,
      user.userId,
    );

    if (!isOk(result)) {
      throw result.error;
    }

    return { success: true };
  }
}