import { Type } from 'class-transformer';
import {
  ArrayUnique,
  IsArray,
  IsBoolean,
  IsIn,
  IsObject,
  IsOptional,
  IsString,
  MaxLength,
  MinLength,
  ValidateIf,
  ValidateNested,
} from 'class-validator';
import { ROLE_PERMISSION_ITEMS, type RolePermissionKey } from '@mento/shared';
import { ROLE_COLORS } from './role-defaults';

const PERMISSION_KEYS = ROLE_PERMISSION_ITEMS.map((item) => item.key);

export class CreateOrgRoleDto {
  @IsString()
  @MinLength(2)
  @MaxLength(80)
  name!: string;

  @IsOptional()
  @IsString()
  @MaxLength(280)
  description?: string;

  @IsOptional()
  @IsIn([...ROLE_COLORS])
  color?: (typeof ROLE_COLORS)[number];

  @IsOptional()
  @IsArray()
  @ArrayUnique()
  @IsIn(PERMISSION_KEYS, { each: true })
  permissions?: RolePermissionKey[];

  @IsOptional()
  @IsObject()
  dataAccessPolicy?: Record<string, unknown>;

  @IsOptional()
  @ValidateIf((_, v) => v !== null)
  @IsString()
  parentId?: string | null;

  @IsOptional()
  @IsArray()
  @ArrayUnique()
  @IsString({ each: true })
  treasuryAccountIds?: string[];

  @IsOptional()
  @IsBoolean()
  treasuryOwnAccounts?: boolean;
}

export class UpdateOrgRoleDto {
  @IsOptional()
  @IsString()
  @MinLength(2)
  @MaxLength(80)
  name?: string;

  @IsOptional()
  @IsString()
  @MaxLength(280)
  description?: string;

  @IsOptional()
  @IsIn([...ROLE_COLORS])
  color?: (typeof ROLE_COLORS)[number];

  @IsOptional()
  @IsArray()
  @ArrayUnique()
  @IsIn(PERMISSION_KEYS, { each: true })
  permissions?: RolePermissionKey[];

  @IsOptional()
  @IsObject()
  dataAccessPolicy?: Record<string, unknown>;

  @IsOptional()
  @ValidateIf((_, v) => v !== null)
  @IsString()
  parentId?: string | null;

  @IsOptional()
  @IsArray()
  @ArrayUnique()
  @IsString({ each: true })
  treasuryAccountIds?: string[];

  @IsOptional()
  @IsBoolean()
  treasuryOwnAccounts?: boolean;
}

export class RolePermissionPatchItemDto {
  @IsString()
  id!: string;

  @IsArray()
  @ArrayUnique()
  @IsIn(PERMISSION_KEYS, { each: true })
  permissions!: RolePermissionKey[];
}

export class BulkUpdatePermissionsDto {
  @IsArray()
  @ValidateNested({ each: true })
  @Type(() => RolePermissionPatchItemDto)
  items!: RolePermissionPatchItemDto[];
}