import { Type } from '@angular/core';
import { ValidationErrors, AbstractControl } from '@angular/forms';
import { Observable } from 'rxjs';
import { FormlyFieldConfig } from './fieldconfig';
import { FieldType } from './../templates/field.type';
import { FieldWrapper } from '../templates/field.wrapper';
export interface FormlyExtension<F extends FormlyFieldConfig = FormlyFieldConfig> {
    priority?: number;
    prePopulate?(field: F): void;
    onPopulate?(field: F): void;
    postPopulate?(field: F): void;
}
export interface TypeOption {
    name: string;
    component?: Type<FieldType>;
    wrappers?: string[];
    extends?: string;
    defaultOptions?: FormlyFieldConfig;
}
export interface WrapperOption {
    name: string;
    component: Type<FieldWrapper>;
    types?: string[];
}
export type FieldValidatorFn = (c: AbstractControl, field: FormlyFieldConfig, options?: {
    [id: string]: any;
}) => ValidationErrors | null;
export interface ValidatorOption {
    name: string;
    validation: FieldValidatorFn;
    options?: {
        [id: string]: any;
    };
}
export interface ExtensionOption {
    name: string;
    extension: FormlyExtension;
    priority?: number;
}
export interface ValidationMessageOption {
    name: string;
    message: string | ((error: any, field: FormlyFieldConfig) => string | Observable<string>);
}
export interface PresetOption {
    name: string;
    config: FormlyFieldConfig | FormlyFieldConfigPresetProvider;
}
export interface FormlyFieldConfigPresetProvider {
    getConfiguration: () => FormlyFieldConfig;
}
export interface ConfigOption {
    types?: TypeOption[];
    wrappers?: WrapperOption[];
    validators?: ValidatorOption[];
    extensions?: ExtensionOption[];
    validationMessages?: ValidationMessageOption[];
    extras?: {
        immutable?: boolean;
        showError?: (field: FieldType) => boolean;
        /**
         * Defines the option which formly rely on to check field expression properties.
         * - `modelChange`: perform a check when the value of the form control changes.
         * - `changeDetectionCheck`: triggers an immediate check when `ngDoCheck` is called.
         *
         * Defaults to `modelChange`.
         */
        checkExpressionOn?: 'modelChange' | 'changeDetectionCheck';
        /**
         * Whether to lazily render field components or not when marked as hidden.
         * - `true`: lazily render field components.
         * - `false`: render field components and use CSS to control their visibility.
         *
         * Defaults to `true`.
         */
        lazyRender?: boolean;
        /**
         * When `true`, reset the value of a hidden field.
         *
         * Defaults to `true`.
         */
        resetFieldOnHide?: boolean;
        /**
         * Whether to render fields inside <formly-field> component or not.
         *
         * Defaults to `true`.
         */
        renderFormlyFieldElement?: boolean;
    };
    presets?: PresetOption[];
}