import { ApiProperty, ApiPropertyOptional } from "@nestjs/swagger";
import { Type } from "class-transformer";
import {
  IsInt,
  IsOptional,
  Max,
  Min,
  ValidateNested,
} from "class-validator";
import type { MediaKind } from "../client.service";

export class ClientMediaLimitsDto {
  @ApiPropertyOptional({
    description: "Minimum upload size in bytes (inclusive). Omit to keep default.",
    example: 5120,
  })
  @IsOptional()
  @IsInt()
  @Min(0)
  minBytes?: number;

  @ApiPropertyOptional({
    description: "Maximum upload size in bytes (inclusive). Cannot exceed route ceiling.",
    example: 8388608,
  })
  @IsOptional()
  @IsInt()
  @Min(1)
  maxBytes?: number;
}

export class ClientMediaSettingsDto {
  @ApiPropertyOptional({ type: ClientMediaLimitsDto })
  @IsOptional()
  @ValidateNested()
  @Type(() => ClientMediaLimitsDto)
  video?: ClientMediaLimitsDto;

  @ApiPropertyOptional({ type: ClientMediaLimitsDto })
  @IsOptional()
  @ValidateNested()
  @Type(() => ClientMediaLimitsDto)
  image?: ClientMediaLimitsDto;

  @ApiPropertyOptional({ type: ClientMediaLimitsDto })
  @IsOptional()
  @ValidateNested()
  @Type(() => ClientMediaLimitsDto)
  voice?: ClientMediaLimitsDto;
}

export class UpdateClientSettingsDto {
  @ApiPropertyOptional({
    description:
      "Max days between CAR_BODY accident date and submission. Omit to leave unchanged.",
    example: 7,
    minimum: 1,
    maximum: 365,
  })
  @IsOptional()
  @IsInt()
  @Min(1)
  @Max(365)
  carBodyAccidentMaxAgeDays?: number;

  @ApiPropertyOptional({ type: ClientMediaSettingsDto })
  @IsOptional()
  @ValidateNested()
  @Type(() => ClientMediaSettingsDto)
  media?: ClientMediaSettingsDto;
}

export class MediaLimitsResolvedDto {
  @ApiProperty({ example: 5120 })
  minBytes: number;

  @ApiProperty({ example: 8388608 })
  maxBytes: number;
}

export class MediaKindSettingsViewDto {
  @ApiPropertyOptional({ type: ClientMediaLimitsDto })
  configured: { minBytes?: number; maxBytes?: number } | null;

  @ApiProperty({ type: MediaLimitsResolvedDto })
  effective: MediaLimitsResolvedDto;

  @ApiProperty({ type: MediaLimitsResolvedDto })
  systemDefault: MediaLimitsResolvedDto;

  @ApiProperty({
    description: "Hard multer ceiling for this kind on upload routes (bytes)",
    example: 10485760,
  })
  routeMaxBytes: number;
}

export class CarBodyAccidentWindowViewDto {
  @ApiPropertyOptional({ example: 14, nullable: true })
  configured: number | null;

  @ApiProperty({ example: 14 })
  effective: number;

  @ApiProperty({ example: 7 })
  systemDefault: number;

  @ApiProperty({ example: 1 })
  minDays: number;

  @ApiProperty({ example: 365 })
  maxDays: number;
}

export class ClientSettingsPanelResponseDto {
  @ApiProperty({ example: "507f1f77bcf86cd799439011" })
  clientId: string;

  @ApiProperty({ type: CarBodyAccidentWindowViewDto })
  carBodyAccidentMaxAgeDays: CarBodyAccidentWindowViewDto;

  @ApiProperty({
    description: "Per-kind upload bounds (video / image / voice)",
    example: {
      video: {},
      image: {},
      voice: {},
    },
  })
  media: Record<MediaKind, MediaKindSettingsViewDto>;
}