import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
import { Type } from 'class-transformer';
import {
  ArrayNotEmpty,
  IsArray,
  IsIn,
  IsNotEmpty,
  IsNumber,
  IsOptional,
  IsString,
  IsUUID,
  Matches,
  Max,
  MaxLength,
  Min,
  ValidateNested,
} from 'class-validator';
import {
  PaginationQueryDto,
  UserRelationDto,
} from '../../../../common/http/response';
import { CORE_STATUSES } from '../../../../common/value-objects/status/status';
import {
  CONTACT_JOB_TITLE_MAX_LENGTH,
  CONTACT_NAME_MAX_LENGTH,
  CONTACT_NOTES_MAX_LENGTH,
  CUSTOMER_ADDRESS_MAX_LENGTH,
  CUSTOMER_CODE_MAX_LENGTH,
  CUSTOMER_CODE_PATTERN,
  CUSTOMER_NAME_MAX_LENGTH,
  CUSTOMER_NAME_PATTERN,
  CUSTOMER_NFC_ID_MAX_LENGTH,
} from '../customer-fields';

export class CreateCustomerContactDto {
  @ApiProperty({ example: 'Jean Luc', maxLength: CONTACT_NAME_MAX_LENGTH })
  @IsString()
  @IsNotEmpty()
  @MaxLength(CONTACT_NAME_MAX_LENGTH)
  name!: string;

  @ApiPropertyOptional({ example: 'Purchasing Manager' })
  @IsOptional()
  @IsString()
  @MaxLength(CONTACT_JOB_TITLE_MAX_LENGTH)
  jobTitle?: string;

  @ApiPropertyOptional({ example: '+6281234567890' })
  @IsOptional()
  @IsString()
  @IsNotEmpty()
  phone?: string;

  @ApiPropertyOptional({ example: '+6281234567891' })
  @IsOptional()
  @IsString()
  @IsNotEmpty()
  mobilePhone?: string;

  @ApiPropertyOptional({ example: 'Call after 9am' })
  @IsOptional()
  @IsString()
  @MaxLength(CONTACT_NOTES_MAX_LENGTH)
  notes?: string;
}

export class UpdateCustomerContactDto {
  @ApiPropertyOptional({ example: 'Jean Luc' })
  @IsOptional()
  @IsString()
  @IsNotEmpty()
  @MaxLength(CONTACT_NAME_MAX_LENGTH)
  name?: string;

  @ApiPropertyOptional({ example: 'Purchasing Manager', nullable: true })
  @IsOptional()
  @IsString()
  @MaxLength(CONTACT_JOB_TITLE_MAX_LENGTH)
  jobTitle?: string | null;

  @ApiPropertyOptional({ example: '+6281234567890', nullable: true })
  @IsOptional()
  @IsString()
  phone?: string | null;

  @ApiPropertyOptional({ example: '+6281234567891', nullable: true })
  @IsOptional()
  @IsString()
  mobilePhone?: string | null;

  @ApiPropertyOptional({ example: 'Call after 9am', nullable: true })
  @IsOptional()
  @IsString()
  @MaxLength(CONTACT_NOTES_MAX_LENGTH)
  notes?: string | null;
}

export class CustomerContactDto {
  @ApiProperty({ format: 'uuid' })
  id!: string;

  @ApiProperty({ format: 'uuid' })
  customerId!: string;

  @ApiProperty()
  name!: string;

  @ApiPropertyOptional({ nullable: true })
  jobTitle!: string | null;

  @ApiPropertyOptional({ nullable: true })
  phone!: string | null;

  @ApiPropertyOptional({ nullable: true })
  mobilePhone!: string | null;

  @ApiPropertyOptional({ nullable: true })
  notes!: string | null;
}

export class CreateCustomerDto {
  @ApiProperty({ example: 'CUST_01', maxLength: CUSTOMER_CODE_MAX_LENGTH })
  @IsString()
  @IsNotEmpty()
  @MaxLength(CUSTOMER_CODE_MAX_LENGTH)
  @Matches(CUSTOMER_CODE_PATTERN, {
    message: 'code must contain only letters, numbers, and underscores',
  })
  code!: string;

  @ApiProperty({ example: 'Acme Corp', maxLength: CUSTOMER_NAME_MAX_LENGTH })
  @IsString()
  @IsNotEmpty()
  @MaxLength(CUSTOMER_NAME_MAX_LENGTH)
  @Matches(CUSTOMER_NAME_PATTERN, {
    message: 'name must contain only letters and spaces',
  })
  name!: string;

  @ApiProperty({ example: '+6281234567890' })
  @IsString()
  @IsNotEmpty()
  phone!: string;

  @ApiProperty({ example: 'Jl Sudirman No 1' })
  @IsString()
  @IsNotEmpty()
  @MaxLength(CUSTOMER_ADDRESS_MAX_LENGTH)
  address!: string;

  @ApiPropertyOptional({ example: -6.2 })
  @IsOptional()
  @Type(() => Number)
  @IsNumber()
  @Min(-90)
  @Max(90)
  latitude?: number;

  @ApiPropertyOptional({ example: 106.8 })
  @IsOptional()
  @Type(() => Number)
  @IsNumber()
  @Min(-180)
  @Max(180)
  longitude?: number;

  @ApiPropertyOptional({ example: 'NFC-001' })
  @IsOptional()
  @IsString()
  @IsNotEmpty()
  @MaxLength(CUSTOMER_NFC_ID_MAX_LENGTH)
  nfcId?: string;

  @ApiPropertyOptional({ enum: CORE_STATUSES })
  @IsOptional()
  @IsIn([...CORE_STATUSES])
  status?: string;

  @ApiPropertyOptional({ type: [CreateCustomerContactDto] })
  @IsOptional()
  @IsArray()
  @ValidateNested({ each: true })
  @Type(() => CreateCustomerContactDto)
  contacts?: CreateCustomerContactDto[];
}

export class UpdateCustomerDto {
  @ApiPropertyOptional({ example: 'CUST_01' })
  @IsOptional()
  @IsString()
  @IsNotEmpty()
  @MaxLength(CUSTOMER_CODE_MAX_LENGTH)
  @Matches(CUSTOMER_CODE_PATTERN, {
    message: 'code must contain only letters, numbers, and underscores',
  })
  code?: string;

  @ApiPropertyOptional({ example: 'Acme Corp' })
  @IsOptional()
  @IsString()
  @IsNotEmpty()
  @MaxLength(CUSTOMER_NAME_MAX_LENGTH)
  @Matches(CUSTOMER_NAME_PATTERN, {
    message: 'name must contain only letters and spaces',
  })
  name?: string;

  @ApiPropertyOptional({ example: '+6281234567890' })
  @IsOptional()
  @IsString()
  @IsNotEmpty()
  phone?: string;

  @ApiPropertyOptional({ example: 'Jl Sudirman No 1' })
  @IsOptional()
  @IsString()
  @IsNotEmpty()
  @MaxLength(CUSTOMER_ADDRESS_MAX_LENGTH)
  address?: string;

  @ApiPropertyOptional({ example: -6.2, nullable: true })
  @IsOptional()
  @Type(() => Number)
  @IsNumber()
  @Min(-90)
  @Max(90)
  latitude?: number | null;

  @ApiPropertyOptional({ example: 106.8, nullable: true })
  @IsOptional()
  @Type(() => Number)
  @IsNumber()
  @Min(-180)
  @Max(180)
  longitude?: number | null;

  @ApiPropertyOptional({ example: 'NFC-001', nullable: true })
  @IsOptional()
  @IsString()
  @MaxLength(CUSTOMER_NFC_ID_MAX_LENGTH)
  nfcId?: string | null;

  @ApiPropertyOptional({ type: [CreateCustomerContactDto] })
  @IsOptional()
  @IsArray()
  @ValidateNested({ each: true })
  @Type(() => CreateCustomerContactDto)
  contacts?: CreateCustomerContactDto[];
}

export class UpdateCustomerStatusDto {
  @ApiProperty({ enum: CORE_STATUSES })
  @IsIn([...CORE_STATUSES])
  status!: string;
}

export class BulkIdsDto {
  @ApiProperty({ type: [String], format: 'uuid' })
  @IsArray()
  @ArrayNotEmpty()
  @IsUUID('4', { each: true })
  ids!: string[];
}

export class BulkStatusDto {
  @ApiProperty({ type: [String], format: 'uuid' })
  @IsArray()
  @ArrayNotEmpty()
  @IsUUID('4', { each: true })
  ids!: string[];

  @ApiProperty({ enum: CORE_STATUSES })
  @IsIn([...CORE_STATUSES])
  status!: string;
}

export class ListCustomersQueryDto extends PaginationQueryDto {
  @ApiPropertyOptional()
  @IsOptional()
  @IsString()
  code?: string;

  @ApiPropertyOptional()
  @IsOptional()
  @IsString()
  name?: string;

  @ApiPropertyOptional()
  @IsOptional()
  @IsString()
  phone?: string;

  @ApiPropertyOptional()
  @IsOptional()
  @IsString()
  address?: string;

  @ApiPropertyOptional()
  @IsOptional()
  @IsString()
  nfcId?: string;

  @ApiPropertyOptional({ enum: CORE_STATUSES })
  @IsOptional()
  @IsIn([...CORE_STATUSES])
  status?: string;

  @ApiPropertyOptional({
    description: 'Case-insensitive match on code, name, or address',
  })
  @IsOptional()
  @IsString()
  search?: string;
}

export class CustomerDto {
  @ApiProperty({ format: 'uuid' })
  id!: string;

  @ApiProperty()
  code!: string;

  @ApiProperty()
  name!: string;

  @ApiProperty({ example: '+6281234567890' })
  phone!: string;

  @ApiProperty()
  address!: string;

  @ApiPropertyOptional({ nullable: true })
  latitude!: number | null;

  @ApiPropertyOptional({ nullable: true })
  longitude!: number | null;

  @ApiPropertyOptional({ nullable: true })
  nfcId!: string | null;

  @ApiPropertyOptional({ type: [CustomerContactDto] })
  contacts?: CustomerContactDto[];

  @ApiProperty({ enum: CORE_STATUSES })
  status!: string;

  @ApiProperty({ description: 'Unix ms' })
  createdAt!: number;

  @ApiProperty({ description: 'Unix ms' })
  updatedAt!: number;

  @ApiProperty({ type: UserRelationDto })
  createdBy!: UserRelationDto;

  @ApiProperty({ type: UserRelationDto })
  updatedBy!: UserRelationDto;
}