import { ApiProperty, ApiPropertyOptional, PartialType } from "@nestjs/swagger";
import {
  EXTERNAL_INQUIRY_TYPES,
  ExternalInquiryFlags,
  mergeExternalInquiryFlags,
} from "src/common/types/external-inquiry.types";
import { IsBoolean, IsMongoId, IsOptional, ValidateNested } from "class-validator";
import { Type } from "class-transformer";

export class ExternalInquiryFlagsDto implements ExternalInquiryFlags {
  @ApiProperty({
    description: "Third-party plate / policy block inquiry (Tejarat or ESG policyByPlate).",
    example: false,
  })
  @IsBoolean()
  thirdPartyPlate: boolean;

  @ApiProperty({
    description: "CAR_BODY (badane) plate inquiry.",
    example: false,
  })
  @IsBoolean()
  carBodyPlate: boolean;

  @ApiProperty({
    description: "Personal identity inquiry (national code + birth date).",
    example: false,
  })
  @IsBoolean()
  personalIdentity: boolean;

  @ApiProperty({
    description: "Sheba account validation.",
    example: false,
  })
  @IsBoolean()
  sheba: boolean;

  @ApiProperty({
    description: "Driving licence check.",
    example: false,
  })
  @IsBoolean()
  drivingLicense: boolean;

  @ApiProperty({
    description: "Vehicle ownership validation.",
    example: false,
  })
  @IsBoolean()
  carOwnership: boolean;

  @ApiProperty({
    description:
      "ESG VIN/chassis-number inquiry (`/inquiry/policyByChassis`). Required for the VIN initial-form path.",
    example: false,
  })
  @IsBoolean()
  vinChassis: boolean;
}

export class UpdateClientExternalInquiriesDto extends PartialType(
  ExternalInquiryFlagsDto,
) {}

export class ClientExternalInquiriesViewDto {
  @ApiProperty({ example: "664a1b2c3d4e5f6789012345" })
  clientId: string;

  @ApiProperty({ example: 8 })
  clientCode: number;

  @ApiProperty({ example: "بیمه پارسیان" })
  clientName: string;

  @ApiProperty({
    description:
      "Global master switch from `system_settings.externalApis.sandHubUseLiveApi`. When false, all inquiries use mocks regardless of these flags.",
  })
  globalSandHubLiveEnabled: boolean;

  @ApiProperty({ type: ExternalInquiryFlagsDto })
  externalInquiries: ExternalInquiryFlags;

  @ApiProperty({
    description: "Effective live flags after applying the global master switch.",
    type: ExternalInquiryFlagsDto,
  })
  effectiveLive: ExternalInquiryFlags;
}

export class ClientExternalInquiriesListDto {
  @ApiProperty({ type: [ClientExternalInquiriesViewDto] })
  items: ClientExternalInquiriesViewDto[];
}

export class ClientExternalInquiriesCatalogDto {
  @ApiProperty({
    enum: EXTERNAL_INQUIRY_TYPES,
    isArray: true,
    description: "Supported inquiry kinds stored on each client document.",
  })
  inquiryTypes: readonly string[];

  @ApiProperty({
    description:
      "Global master switch path: PATCH /system-settings or PATCH /client/external-inquiries-live",
  })
  globalSettingPath: string;

  @ApiProperty({
    description: "Per-insurer CRUD base path (public for now).",
    example: "/client/{clientId}/external-inquiries",
  })
  perClientSettingPath: string;
}

/** Build a view DTO from a lean client document. */
export function toClientExternalInquiriesView(
  client: {
    _id?: unknown;
    clientCode?: number;
    clientName?: { persian?: string; english?: string } | string;
    settings?: { externalInquiries?: Partial<ExternalInquiryFlags> };
  },
  globalSandHubLiveEnabled: boolean,
): ClientExternalInquiriesViewDto {
  const flags = mergeExternalInquiryFlags(client.settings?.externalInquiries);
  const effectiveLive = {} as ExternalInquiryFlags;
  for (const key of EXTERNAL_INQUIRY_TYPES) {
    effectiveLive[key] = globalSandHubLiveEnabled && flags[key] === true;
  }
  const name =
    typeof client.clientName === "string"
      ? client.clientName
      : client.clientName?.persian ||
        client.clientName?.english ||
        String(client.clientCode ?? "");

  return {
    clientId: String(client._id ?? ""),
    clientCode: Number(client.clientCode ?? 0),
    clientName: name,
    globalSandHubLiveEnabled,
    externalInquiries: flags,
    effectiveLive,
  };
}

export class ClientIdParamDto {
  @ApiProperty({ description: "Mongo ObjectId of the insurer client document" })
  @IsMongoId()
  clientId: string;
}

/** Optional nested patch used internally when validating partial bodies. */
export class ExternalInquiryFlagsPatchDto {
  @IsOptional()
  @ValidateNested()
  @Type(() => UpdateClientExternalInquiriesDto)
  externalInquiries?: UpdateClientExternalInquiriesDto;
}