import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
import { Type } from 'class-transformer';
import {
  IsArray,
  IsBoolean,
  IsDateString,
  IsIn,
  IsInt,
  IsNotEmpty,
  IsOptional,
  IsString,
  Min,
  ValidateNested,
} from 'class-validator';

/** 计划项（svc_plan_item）入参。svc_id 引用本机构 L4（svc_org.id）。 */
export class PlanItemInputDto {
  @ApiProperty({ description: '本机构 L4 项目库 svc_org.id' })
  @IsString()
  @IsNotEmpty()
  svcId!: string;

  @ApiPropertyOptional({ description: '频次类型：daily/weekly_n/monthly_n/as_needed' })
  @IsOptional()
  @IsString()
  freqType?: string;

  @ApiPropertyOptional({ description: '频次值（如每周 3 次填 3）' })
  @IsOptional()
  @IsInt()
  freqValue?: number;

  @ApiPropertyOptional({ description: '单次时长（分钟）' })
  @IsOptional()
  @IsInt()
  durationMin?: number;

  @ApiPropertyOptional({ description: '拍照档位：must/optional/free', enum: ['must', 'optional', 'free'] })
  @IsOptional()
  @IsIn(['must', 'optional', 'free'])
  photoTier?: string;

  @ApiPropertyOptional({ description: '注意事项' })
  @IsOptional()
  @IsString()
  cautionNote?: string;

  @ApiPropertyOptional({ description: '是否医疗护理类' })
  @IsOptional()
  @IsBoolean()
  isMedical?: boolean;

  @ApiPropertyOptional({ description: '是否要求持证' })
  @IsOptional()
  @IsBoolean()
  needCert?: boolean;
}

/** 制定服务计划入参。plan_status 由服务端定（制定=draft），不接受前端传入。 */
export class CreatePlanDto {
  @ApiProperty({ description: '老人 ID' })
  @IsString()
  @IsNotEmpty()
  elderId!: string;

  @ApiProperty({ description: '计划周期起（YYYY-MM-DD）' })
  @IsDateString()
  planPeriodStart!: string;

  @ApiProperty({ description: '计划周期止（YYYY-MM-DD）' })
  @IsDateString()
  planPeriodEnd!: string;

  @ApiProperty({ description: '护理等级：care_1/care_2/care_3', enum: ['care_1', 'care_2', 'care_3'] })
  @IsString()
  @IsNotEmpty()
  careLevel!: string;

  @ApiProperty({
    description: '护理方式：inst_medical/inst_nursing/home_org/home_individual',
    enum: ['inst_medical', 'inst_nursing', 'home_org', 'home_individual'],
  })
  @IsString()
  @IsNotEmpty()
  careMode!: string;

  @ApiProperty({ description: '计划项目列表', type: [PlanItemInputDto] })
  @IsArray()
  @ValidateNested({ each: true })
  @Type(() => PlanItemInputDto)
  items!: PlanItemInputDto[];

  @ApiPropertyOptional({ description: '每周次数（居家类）' })
  @IsOptional()
  @IsInt()
  @Min(0)
  weekFreq?: number;

  @ApiPropertyOptional({ description: '每月小时数（居家类）' })
  @IsOptional()
  @IsInt()
  @Min(0)
  monthHours?: number;

  @ApiPropertyOptional({ description: '附加项数（≤5）' })
  @IsOptional()
  @IsInt()
  @Min(0)
  extraItemCount?: number;

  @ApiPropertyOptional({ description: '计划依据快照（json）' })
  @IsOptional()
  planBasis?: unknown;
}

/** 变更计划入参：change_from_plan_id 指向被变更的旧计划。 */
export class ChangePlanDto extends CreatePlanDto {
  @ApiProperty({ description: '被变更的旧计划 ID' })
  @IsString()
  @IsNotEmpty()
  changeFromPlanId!: string;
}

/** 计划确认入参（老人/家属确认，确认后计划转 active）。 */
export class ConfirmPlanDto {
  @ApiProperty({ description: '老人确认' })
  @IsBoolean()
  confirmElder!: boolean;

  @ApiPropertyOptional({ description: '家属确认（可选）' })
  @IsOptional()
  @IsBoolean()
  confirmGuardian?: boolean;
}