import { Body, Controller, Get, Headers, HttpCode, Param, Post, Put } from '@nestjs/common';
import { AdminCustomersService, type OmdeScope } from './admin-customers.service';
import { TableQueryDto } from '../admin-table/table-query.dto';
import { CurrentAdmin, RequirePermission, SuperAdminOnly } from '../auth/guards';
import type { AuthenticatedAdmin } from '../auth/jwt.strategy';

/**
 * Wholesale customer lists. Legacy endpoints, one per near-identical view:
 *   POST customer                  -> OmdeList
 *   POST banker                    -> BankerList
 *   POST shopkeeper                -> ShopkeeperList
 *   POST major/verify/table        -> OmdeNonVerifiedList
 *   POST major/archive/table       -> OmdeArchivedList
 *   POST customer/toggle-active, customer/toggle-sts, major/verify
 *   GET  major/archive/{id}, major/dashboard/{id}
 */
@Controller('admin/customers-omde')
export class AdminCustomersController {
  constructor(private readonly customers: AdminCustomersService) {}

  // `X-Debug: 1` (set by the panel when localStorage.debug === '1') adds a
  // counts-only `debug` block to the response — see AdminCustomersService.listDebug.
  private list(query: TableQueryDto, scope: OmdeScope, debug?: string) {
    return this.customers.list(query, scope, debug === '1');
  }

  @Post('list')
  @HttpCode(200)
  @RequirePermission('persons.list.client.omde')
  listAll(@Body() query: TableQueryDto, @Headers('x-debug') debug?: string) {
    return this.list(query, 'all', debug);
  }

  @Post('banker/list')
  @HttpCode(200)
  @SuperAdminOnly()
  @RequirePermission('persons.list.client.omde')
  listBanker(@Body() query: TableQueryDto, @Headers('x-debug') debug?: string) {
    return this.list(query, 'banker', debug);
  }

  @Post('shopkeeper/list')
  @HttpCode(200)
  @SuperAdminOnly()
  @RequirePermission('persons.list.client.omde')
  listShopkeeper(@Body() query: TableQueryDto, @Headers('x-debug') debug?: string) {
    return this.list(query, 'shopkeeper', debug);
  }

  @Post('non-verified/list')
  @HttpCode(200)
  @RequirePermission('persons.list.client.omde')
  listNonVerified(@Body() query: TableQueryDto, @Headers('x-debug') debug?: string) {
    return this.list(query, 'non_verified', debug);
  }

  @Post('archived/list')
  @HttpCode(200)
  @RequirePermission('persons.list.client.omde')
  listArchived(@Body() query: TableQueryDto, @Headers('x-debug') debug?: string) {
    return this.list(query, 'archived', debug);
  }

  /** Legacy POST single-customer — the retail customer list. */
  @Post('single/list')
  @HttpCode(200)
  @SuperAdminOnly({ allowBranch: true })
  @RequirePermission('persons.list.client.single')
  listSingle(@Body() query: TableQueryDto, @CurrentAdmin() admin: AuthenticatedAdmin) {
    return this.customers.listSingle(query, admin.branchId ?? undefined);
  }

  /** Legacy `POST single` — singleCustomer.vue, the retail customer form. */
  @Post('single')
  @HttpCode(200)
  @SuperAdminOnly({ allowBranch: true })
  @RequirePermission('persons.create')
  createSingle(@Body() data: Record<string, unknown>) {
    return this.customers.createSingle(data);
  }

  /**
   * Legacy `GET query/reagent` — the sales-expert picker used by the customer
   * form. Returns a plain array of {id, name}, as legacy did.
   */
  @Get('query/reagent')
  @RequirePermission('persons.create')
  queryReagents() {
    return this.customers.queryReagents();
  }

  /** Legacy POST wallet/charge. */
  @Post('wallet/charge')
  @HttpCode(200)
  @RequirePermission('wallet')
  chargeWallet(@Body() body: { customer_id: string; value: string | number }) {
    return this.customers.chargeWallet(body);
  }

  @Post('create')
  @HttpCode(200)
  @RequirePermission('persons.create')
  create(@Body() data: Record<string, unknown>) {
    return this.customers.create(data);
  }

  @Put(':id')
  @RequirePermission('persons.list.client.omde.edit')
  update(@Param('id') id: string, @Body() data: Record<string, unknown>) {
    return this.customers.update(id, data);
  }

  /** Legacy POST reagent — the sales-expert list. */
  @Post('reagent/list')
  @HttpCode(200)
  @RequirePermission('persons.list.sellers')
  listReagents(@Body() query: TableQueryDto) {
    return this.customers.listReagents(query);
  }

  /** A sales agent's own detail screen — see reagentDetail()'s header comment. */
  @Get('reagent/:id')
  @RequirePermission('persons.list.sellers.view')
  reagentDetail(@Param('id') id: string) {
    return this.customers.reagentDetail(id);
  }

  /** Legacy `GET single/order/{id}` — that customer's orders. */
  @Get(':id/orders')
  @RequirePermission('persons.list.client.omde.view.orders')
  customerOrders(@Param('id') id: string) {
    return this.customers.customerOrders(id);
  }

  /** Legacy `GET single/report/{id}` — that customer's ledger documents. */
  @Get(':id/documents')
  @RequirePermission('persons.list.client.omde.view.documents')
  customerDocuments(@Param('id') id: string) {
    return this.customers.customerDocuments(id);
  }

  /** Legacy `GET single/wallet/{id}` — that customer's wallet bonuses. */
  @Get(':id/wallet')
  @RequirePermission('wallet')
  customerWallet(@Param('id') id: string) {
    return this.customers.customerWallet(id);
  }

  @Get('dashboard/:id')
  @RequirePermission('persons.list.client.omde.view')
  dashboard(@Param('id') id: string) {
    return this.customers.dashboard(id);
  }

  @Get('archive/:id')
  @RequirePermission('persons.list.client.omde.edit')
  toggleArchive(@Param('id') id: string) {
    return this.customers.toggleArchive(id);
  }

  @Post('toggle-active')
  @HttpCode(200)
  @RequirePermission('persons.list.client.omde.edit')
  toggleActive(@Body() body: { id: string }) {
    return this.customers.toggleActive(body.id);
  }

  @Post('toggle-sts')
  @HttpCode(200)
  @RequirePermission('persons.list.client.omde.edit')
  toggleSts(@Body() body: { id: string }) {
    return this.customers.toggleSts(body.id);
  }

  @Post('verify')
  @HttpCode(200)
  @RequirePermission('persons.list.client.omde.edit')
  verify(
    @Body()
    body: {
      customer_id: string;
      sts_verify_step_one?: number;
      sts_verify_step_two?: number;
      /** Optional, only read on a reject. */
      reason?: string | null;
    },
  ) {
    return this.customers.verify(body);
  }

  @Post('credit')
  @HttpCode(200)
  @RequirePermission('persons.list.client.omde.edit')
  updateCredit(@Body() body: { id: string; gram_level?: string; percent?: string }) {
    return this.customers.updateCredit(body.id, body);
  }

  @Get(':id')
  @RequirePermission('persons.list.client.omde.view')
  findOne(@Param('id') id: string) {
    return this.customers.findOne(id);
  }
}