/*
 * Copyright © 2020 Atomist, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { BaseParameter, BaseValue } from "@atomist/automation-client/lib/internal/metadata/decoratorSupport";

export type ParametersDefinition<PARAMS = any> = ParametersListing | ParametersObject<PARAMS>;

/**
 * Interface mixed in with BaseParameter to allow adding a default value to a parameter.
 * When the class-style decorated approach is used, this is unnecessary as any field
 * value will be used as a default.
 */
export interface HasDefaultValue {
    defaultValue?: any;
}

export type ParametersObjectValue = BaseParameter & HasDefaultValue;

export type MappedParameterOrSecretObjectValue = MappedParameterOrSecretDeclaration;

export type ValueParameterObjectValue = ValueDeclaration;

/**
 * Object with properties defining parameters, secrets, mapped parameters and values.
 * Useful for combination via spreads.
 */
export type ParametersObject<PARAMS, K extends keyof PARAMS = keyof PARAMS> = Record<
    K,
    ParametersObjectValue | MappedParameterOrSecretObjectValue | ValueParameterObjectValue
>;

export enum DeclarationType {
    Mapped = "mapped",
    Secret = "secret",
}

export interface MappedParameterOrSecretDeclaration {
    declarationType: DeclarationType;

    uri: string;
    /**
     * Only valid on mapped parameters
     */
    required?: boolean;
}

/**
 * Define values to be injected from the SDM configuration
 */
export type ValueDeclaration = BaseValue;

/**
 * Define parameters used in a command
 */
export interface ParametersListing {
    readonly parameters: NamedParameter[];

    readonly mappedParameters: NamedMappedParameter[];

    readonly secrets: NamedSecret[];

    readonly values: NamedValue[];
}

export type NamedParameter = BaseParameter & { name: string } & HasDefaultValue;

export interface NamedSecret {
    name: string;
    uri: string;
}

export interface NamedMappedParameter {
    name: string;
    uri: string;
    required?: boolean;
}

export type NamedValue = NamedValueParameter;

export interface NamedValueParameter extends BaseValue {
    name: string;
}