import { BaseModel } from './base.model';

export interface FieldOption {
  label: string;
  value: string | number | boolean;
}

export interface ValidationRule {
  type: 'required' | 'min' | 'max' | 'email' | 'url' | 'pattern' | 'custom';
  value?: any;
  message?: string;
}

export interface UIMetadata {
  // Display properties
  placeholder?: string;
  helpText?: string;
  
  // View visibility
  showOnList?: boolean;
  showOnDetail?: boolean;
  showOnEdit?: boolean;
  sortable?: boolean;
  
  // Field type specific options
  options?: FieldOption[]; // For select, multi-select
  rows?: number; // For textarea
  min?: number; // For number, date
  max?: number; // For number, date
  step?: number; // For number
  accept?: string; // For file/image
  relationDisplayField?: string; // Which field to display for relations
  
  // Formatting
  format?: string; // Date format, number format, etc.
  prefix?: string; // Currency symbol, etc.
  suffix?: string;
  
  // Validation
  validationRules?: ValidationRule[];
  
  // Advanced
  dependsOn?: string[]; // Field dependencies
  computedValue?: string; // Formula for computed fields
}

export class FieldDefinition extends BaseModel {
  static tableName = 'field_definitions';

  id!: string;
  objectDefinitionId!: string;
  apiName!: string;
  label!: string;
  type!: string;
  length?: number;
  precision?: number;
  scale?: number;
  referenceObject?: string;
  defaultValue?: string;
  description?: string;
  isRequired!: boolean;
  isUnique!: boolean;
  isSystem!: boolean;
  isCustom!: boolean;
  displayOrder!: number;
  uiMetadata?: UIMetadata;
  // Field-level permissions
  defaultReadable!: boolean;
  defaultWritable!: boolean;

  static relationMappings = {
    objectDefinition: {
      relation: BaseModel.BelongsToOneRelation,
      modelClass: 'object-definition.model',
      join: {
        from: 'field_definitions.objectDefinitionId',
        to: 'object_definitions.id',
      },
    },
  };
}