import { ApiProperty, ApiPropertyOptional } from "@nestjs/swagger";
import {
  IsArray,
  IsIn,
  IsInt,
  IsNotEmpty,
  IsNumber,
  IsOptional,
  IsString,
  ValidateNested,
} from "class-validator";
import { Type } from "class-transformer";
import type { PriceDropSeverity } from "src/helpers/claim-price-drop";

export class PriceDropPartSeverityV2Dto {
  @ApiProperty({
    example: 12,
    description: "From claim detail `damagedParts[].partId`",
  })
  @IsInt()
  partId: number;

  @ApiProperty({
    enum: ["Minor", "Moderate", "Severe"],
    description: "Severity: جزئی / متوسط / شدید",
  })
  @IsIn(["Minor", "Moderate", "Severe"])
  severity: PriceDropSeverity;
}

export class UpsertClaimPriceDropV2Dto {
  @ApiPropertyOptional({ example: "پژو 206" })
  @IsOptional()
  @IsString()
  carName?: string;

  @ApiPropertyOptional({
    example: "پژو 206 تیپ 5",
    description: "Display model string stored on `claim.vehicle.carModel`",
  })
  @IsOptional()
  @IsString()
  carModel?: string;

  @ApiProperty({
    example: 450000000,
    description: "Market price of the car (Toman)",
  })
  carPrice: number | string;

  @ApiPropertyOptional({
    example: 1394,
    description:
      "Jalali production year (coefficient). Defaults from linked blame plate inquiry when omitted.",
  })
  @IsOptional()
  @IsNumber()
  carModelYear?: number;

  @ApiProperty({
    type: [PriceDropPartSeverityV2Dto],
    description:
      "One row per damaged part on the claim; coefficients come from the price-drop table × severity.",
  })
  @IsArray()
  @ValidateNested({ each: true })
  @Type(() => PriceDropPartSeverityV2Dto)
  partSeverities: PriceDropPartSeverityV2Dto[];

  @ApiPropertyOptional({
    description:
      "Override: expert manually sets the final price-drop amount (in Rials). " +
      "When provided, carPrice and partSeverities are not required and calculation is skipped entirely.",
    example: 150000000,
  })
  @IsOptional()
  @IsNumber()
  manualPriceDrop?: number;
}

export class ClaimPriceDropContextV2Dto {
  @ApiProperty()
  claimRequestId: string;

  @ApiPropertyOptional()
  vehicle?: {
    carName?: string;
    carModel?: string;
    carType?: string;
  };

  @ApiPropertyOptional({
    description: "Jalali year from blame plate inquiry (ModelField / ModelCii)",
  })
  suggestedCarModelYear?: number | null;

  @ApiPropertyOptional()
  priceDrop?: Record<string, unknown>;

  @ApiProperty({
    type: "array",
    items: {
      type: "object",
      properties: {
        value: { type: "string" },
        label_fa: { type: "string" },
      },
    },
  })
  severityOptions: Array<{ value: string; label_fa: string }>;

  @ApiProperty({
    description: "Full coefficient table for all price-drop parts",
  })
  priceDropCatalog: Array<Record<string, unknown>>;

  @ApiProperty({
    description: "Claim damaged parts with optional price-drop key mapping",
  })
  damagedParts: Array<Record<string, unknown>>;
}

export class ClaimPriceDropResultV2Dto {
  @ApiProperty()
  claimRequestId: string;

  @ApiProperty()
  vehicle: {
    carName?: string;
    carModel?: string;
    carType?: string;
  };

  @ApiProperty()
  priceDrop: Record<string, unknown>;

  @ApiProperty({ type: "array" })
  partLines: Array<Record<string, unknown>>;
}