import { ApiProperty } from '@nestjs/swagger';
import { IsArray, IsEnum, IsNotEmpty, ArrayMinSize, ArrayUnique, IsOptional, IsInt } from 'class-validator';
import {
  ClaimVehicleTypeV2,
  OuterPartSideV2,
} from "src/static/outer-car-parts-catalog";
import { DamageSelectedPartV2BodyDto } from "./damage-selected-part-v2.dto";

/**
 * Enum for valid outer car parts that can be damaged
 * Follows the naming convention from workflow step definition
 */
export enum OuterCarPart {
  // Hood
  HOOD = 'hood',
  
  // Doors
  FRONT_RIGHT_DOOR = 'front_right_door',
  FRONT_LEFT_DOOR = 'front_left_door',
  REAR_RIGHT_DOOR = 'rear_right_door',
  REAR_LEFT_DOOR = 'rear_left_door',
  
  // Bumpers
  FRONT_BUMPER = 'front_bumper',
  REAR_BUMPER = 'rear_bumper',
  
  // Fenders
  FRONT_RIGHT_FENDER = 'front_right_fender',
  FRONT_LEFT_FENDER = 'front_left_fender',
  REAR_RIGHT_FENDER = 'rear_right_fender',
  REAR_LEFT_FENDER = 'rear_left_fender',
  
  // Trunk & Roof
  TRUNK = 'trunk',
  ROOF = 'roof',
}

/**
 * V2 DTO for selecting damaged outer car parts
 * Much cleaner than the nested boolean structure
 */
export class SelectOuterPartsV2Dto {
  @ApiProperty({
    description: 'Array of selected damaged outer car parts',
    example: ['hood', 'front_right_door', 'rear_bumper', 'roof'],
    enum: OuterCarPart,
    isArray: true,
    minItems: 1,
    maxItems: 13,
  })
  @IsOptional()
  @IsArray({ message: 'selectedParts must be an array' })
  @ArrayMinSize(1, { message: 'At least one damaged part must be selected' })
  @ArrayUnique({ message: 'Duplicate parts are not allowed' })
  @IsEnum(OuterCarPart, {
    each: true,
    message: 'Invalid part name. Must be one of the valid outer car parts',
  })
  selectedParts?: OuterCarPart[];

  @ApiProperty({
    description: 'Selected outer part IDs from catalog',
    example: [9, 10, 4],
    type: [Number],
    required: false,
  })
  @IsOptional()
  @IsArray({ message: 'selectedPartIds must be an array' })
  @ArrayMinSize(1, { message: 'At least one part ID must be selected' })
  @ArrayUnique({ message: 'Duplicate part IDs are not allowed' })
  @IsInt({ each: true, message: 'Each selected part ID must be an integer' })
  selectedPartIds?: number[];

  @ApiProperty({
    description: 'Vehicle type for validating available outer parts',
    enum: ClaimVehicleTypeV2,
    required: true,
  })
  @IsNotEmpty()
  @IsEnum(ClaimVehicleTypeV2)
  carType?: ClaimVehicleTypeV2;
}

/**
 * Response DTO for select outer parts V2
 */
export class SelectOuterPartsV2ResponseDto {
  @ApiProperty({
    description: 'Claim request ID',
    example: '507f1f77bcf86cd799439011',
  })
  claimRequestId: string;

  @ApiProperty({
    description: 'Public ID shared across blame and claim',
    example: 'A14235',
  })
  publicId: string;

  @ApiProperty({
    description:
      "Ordered selected parts: id, side-agnostic name, side, label_fa (and optional catalogKey)",
    type: [DamageSelectedPartV2BodyDto],
  })
  selectedParts: DamageSelectedPartV2BodyDto[];

  @ApiProperty({
    description: 'Selected part IDs',
    example: [9, 7, 11],
    type: [Number],
  })
  selectedPartIds: number[];

  @ApiProperty({
    description: 'Current workflow step',
    example: 'SELECT_OUTER_PARTS',
  })
  currentStep: string;

  @ApiProperty({
    description: 'Next possible workflow step',
    example: 'SELECT_OTHER_PARTS',
  })
  nextStep: string;

  @ApiProperty({
    description: 'Success message',
    example: 'Outer parts selected successfully. Please proceed to select other parts.',
  })
  message: string;
}

export class SetClaimVehicleTypeV2Dto {
  @ApiProperty({
    description: "Vehicle type selected by user",
    enum: ClaimVehicleTypeV2,
  })
  @IsNotEmpty()
  @IsEnum(ClaimVehicleTypeV2)
  carType: ClaimVehicleTypeV2;
}

/**
 * Shape returned by `GET .../outer-parts-catalog` (both user and expert
 * controllers). It mirrors how items are persisted under
 * `damage.selectedParts` (see `DamageSelectedPartV2BodyDto`) so the front-end
 * can match catalog rows to stored selections without any field renaming:
 * `name` is side-agnostic, `label_fa` is disambiguated with the side in
 * parentheses, and the original full catalog key (`left_backfender`) is
 * exposed as `catalogKey`.
 */
export class OuterPartCatalogItemDto {
  @ApiProperty({
    description: "Static catalog id (unique across all car types)",
    example: 102,
  })
  id: number;

  @ApiProperty({
    description: "Side-agnostic part name (matches stored part `name`)",
    example: "backWheel",
  })
  name: string;

  @ApiProperty({
    description: "Vehicle side / region",
    enum: OuterPartSideV2,
    example: "left",
  })
  side: string;

  @ApiProperty({
    description:
      "Display label in Farsi, with side disambiguator in parentheses when needed",
    example: "چرخ عقب (چپ)",
  })
  label_fa: string;

  @ApiProperty({
    description: "Original full catalog key (matches stored `catalogKey`)",
    example: "left_backWheel",
    required: false,
  })
  catalogKey?: string;

  @ApiProperty({
    description: "Vehicle type this catalog row belongs to",
    enum: ClaimVehicleTypeV2,
    required: false,
    example: "suv",
  })
  carType?: ClaimVehicleTypeV2;
}