import { Body, Controller, Get, HttpCode, Post, Put, Req, UseGuards } from '@nestjs/common';
import {
  backupConnectionTestInputSchema,
  backupRestoreInputSchema,
  backupSettingsInputSchema,
  type BackupConnectionTestInput,
  type BackupConnectionTestResult,
  type BackupRestoreInput,
  type BackupSetsView,
  type BackupSettingsInput,
  type BackupSettingsView,
} from '@dorfteich/shared';

import { AuthedRequest } from '../auth/auth.guard';
import { ZodValidationPipe } from '../common/zod-validation.pipe';
import { SiteAdminGuard } from './site-admin.guard';
import { BackupAdminService } from './backup-admin.service';

/**
 * Site-Admin backup management (issue #103): Nextcloud target settings with
 * a live connection test, the manual backup trigger, and the in-app restore
 * (both answer 202 — the sidecar executes, progress arrives through the
 * status files surfaced on GET /admin/system/backup).
 */
@Controller('admin/system/backup')
@UseGuards(SiteAdminGuard)
export class BackupAdminController {
  constructor(private readonly backup: BackupAdminService) {}

  @Get('settings')
  settings(): Promise<BackupSettingsView> {
    return this.backup.settingsView();
  }

  @Put('settings')
  saveSettings(
    @Body(new ZodValidationPipe(backupSettingsInputSchema)) input: BackupSettingsInput,
    @Req() request: AuthedRequest,
  ): Promise<BackupSettingsView> {
    return this.backup.saveSettings(input, request.user!);
  }

  @Post('nextcloud/test')
  @HttpCode(200)
  testConnection(
    @Body(new ZodValidationPipe(backupConnectionTestInputSchema))
    input: BackupConnectionTestInput,
  ): Promise<BackupConnectionTestResult> {
    return this.backup.testConnection(input);
  }

  @Get('sets')
  sets(): Promise<BackupSetsView> {
    return this.backup.sets();
  }

  @Post('run')
  @HttpCode(202)
  async run(@Req() request: AuthedRequest): Promise<{ requested: true }> {
    await this.backup.requestRun(request.user!);
    return { requested: true };
  }

  @Post('restore')
  @HttpCode(202)
  async restore(
    @Body(new ZodValidationPipe(backupRestoreInputSchema)) input: BackupRestoreInput,
    @Req() request: AuthedRequest,
  ): Promise<{ requested: true }> {
    await this.backup.requestRestore(input, request.user!);
    return { requested: true };
  }
}