/********************************************************************************
 * MIT License

 * © Copyright 2023 Adobe. All rights reserved.

 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 ********************************************************************************/

import type { AddOnListingData } from "@adobe/ccweb-add-on-core";
import { DEFAULT_OUTPUT_DIRECTORY, traverseDirectory } from "@adobe/ccweb-add-on-core";
import type { AddOnManifest } from "@adobe/ccweb-add-on-manifest";
import path from "path";
import { DEFAULT_ADD_ON_NAME, MANIFEST_JSON } from "../constants.js";
import type { AddOnDirectory } from "../models/AddOnDirectory.js";

/**
 * Class containing utility functions for Add-ons.
 */
export class AddOnResourceUtils {
    /**
     * Get Add-on schema details as an array.
     * @param manifest - {@link AddOnManifest} Information about the Add-on.
     * @param baseUrl - Base URL of the server.
     * @returns Array of {@link AddOnListingData}
     */
    static getAddOnListingData(
        manifest: AddOnManifest,
        addOnDirectory: AddOnDirectory,
        baseUrl: string
    ): AddOnListingData[] {
        // fallback to previously stored manifest incase manifest validation fails
        const testId =
            (manifest?.manifestProperties.testId as string) ??
            (addOnDirectory.manifest?.manifestProperties.testId as string);

        const addOnName = (manifest?.manifestProperties?.name as string) ?? DEFAULT_ADD_ON_NAME;

        const entryPoints =
            manifest?.entryPoints?.map(entrypoint => {
                const entrypointProperties = entrypoint.entrypointProperties;
                return { ...entrypointProperties, discoverable: entrypoint.discoverable ?? true };
            }) ?? [];

        return [
            {
                addonId: testId,
                versionString: manifest?.version ?? addOnDirectory.manifest?.manifestProperties.version,
                supportedLanguages: ["en-US"],
                supportedApps: ["Express"],
                downloadUrl: `${baseUrl}/${testId}/${MANIFEST_JSON}`,
                addon: {
                    localizedMetadata: {
                        name: addOnName
                    }
                },
                entryPoints
            }
        ];
    }

    /**
     * Get all Add-on resources from the build directory.
     * @param manifest - {@link AddOnManifest} Information about the Add-on.
     * @param rootDirPath - Add-on Root directory path
     * @param baseUrl - Base URL of the server.
     * @returns Array of URLs as string pointing to the Add-on resources.
     */
    static getResources(manifest: AddOnManifest, rootDirPath: string, baseUrl: string): string[] {
        const resources: string[] = [];
        const outputDirectory = path.join(rootDirPath, DEFAULT_OUTPUT_DIRECTORY);
        traverseDirectory(outputDirectory, absolutePath => {
            // ignore dotfiles
            if (!path.basename(absolutePath).startsWith(".")) {
                const relativePath = path.relative(outputDirectory, absolutePath);
                const resourcePath = path.join(manifest?.manifestProperties.testId as string, relativePath);
                const resourceUrl = `${baseUrl}/${resourcePath}`;

                resources.push(resourceUrl);
            }
        });

        return resources;
    }
}