"use strict";
// Copyright (c) Microsoft Corporation.
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getStableHelmVersion = void 0;
const os = __importStar(require("os"));
const path = __importStar(require("path"));
const util = __importStar(require("util"));
const fs = __importStar(require("fs"));
const semver = __importStar(require("semver"));
const toolCache = __importStar(require("@actions/tool-cache"));
const core = __importStar(require("@actions/core"));
const graphql_1 = require("@octokit/graphql");
const helmToolName = 'helm';
const stableHelmVersion = 'v3.2.1';
const stableHelm3Version = 'v3.5.3';
const stableHelm2Version = 'v2.17.0';
const LATEST_HELM2_VERSION = '2.*';
const LATEST_HELM3_VERSION = '3.*';
const helmAllReleasesUrl = 'https://api.github.com/repos/helm/helm/releases';
function getExecutableExtension() {
    if (os.type().match(/^Win/)) {
        return '.exe';
    }
    return '';
}
function getHelmDownloadURL(version) {
    switch (os.type()) {
        case 'Linux':
            return util.format('https://get.helm.sh/helm-%s-linux-amd64.zip', version);
        case 'Darwin':
            return util.format('https://get.helm.sh/helm-%s-darwin-amd64.zip', version);
        case 'Windows_NT':
        default:
            return util.format('https://get.helm.sh/helm-%s-windows-amd64.zip', version);
    }
}
function getStableHelmVersion() {
    return __awaiter(this, void 0, void 0, function* () {
        try {
            const downloadPath = yield toolCache.downloadTool(helmAllReleasesUrl);
            const responseArray = JSON.parse(fs.readFileSync(downloadPath, 'utf8').toString().trim());
            let latestHelmVersion = semver.clean(stableHelmVersion);
            responseArray.forEach(response => {
                if (response && response.tag_name) {
                    let currentHelmVerison = semver.clean(response.tag_name.toString());
                    if (currentHelmVerison) {
                        if (currentHelmVerison.toString().indexOf('rc') == -1 && semver.gt(currentHelmVerison, latestHelmVersion)) {
                            //If current helm version is not a pre release and is greater than latest helm version
                            latestHelmVersion = currentHelmVerison;
                        }
                    }
                }
            });
            latestHelmVersion = "v" + latestHelmVersion;
            return latestHelmVersion;
        }
        catch (error) {
            core.warning(util.format("Cannot get the latest Helm info from %s. Error %s. Using default Helm version %s.", helmAllReleasesUrl, error, stableHelmVersion));
        }
        return stableHelmVersion;
    });
}
exports.getStableHelmVersion = getStableHelmVersion;
var walkSync = function (dir, filelist, fileToFind) {
    var files = fs.readdirSync(dir);
    filelist = filelist || [];
    files.forEach(function (file) {
        if (fs.statSync(path.join(dir, file)).isDirectory()) {
            filelist = walkSync(path.join(dir, file), filelist, fileToFind);
        }
        else {
            core.debug(file);
            if (file == fileToFind) {
                filelist.push(path.join(dir, file));
            }
        }
    });
    return filelist;
};
function downloadHelm(version) {
    return __awaiter(this, void 0, void 0, function* () {
        if (!version) {
            version = yield getLatestHelmVersionFor("v3");
        }
        let cachedToolpath = toolCache.find(helmToolName, version);
        if (!cachedToolpath) {
            let helmDownloadPath;
            try {
                helmDownloadPath = yield toolCache.downloadTool(getHelmDownloadURL(version));
            }
            catch (exception) {
                throw new Error(util.format("Failed to download Helm from location ", getHelmDownloadURL(version)));
            }
            fs.chmodSync(helmDownloadPath, '777');
            const unzipedHelmPath = yield toolCache.extractZip(helmDownloadPath);
            cachedToolpath = yield toolCache.cacheDir(unzipedHelmPath, helmToolName, version);
        }
        const helmpath = findHelm(cachedToolpath);
        if (!helmpath) {
            throw new Error(util.format("Helm executable not found in path ", cachedToolpath));
        }
        fs.chmodSync(helmpath, '777');
        return helmpath;
    });
}
function getLatestHelmVersionFor(type) {
    return __awaiter(this, void 0, void 0, function* () {
        const token = core.getInput('token', { 'required': true });
        try {
            const { repository } = yield graphql_1.graphql(`{
                repository(name: "helm", owner: "helm") {
                    releases(last: 100)  {
                        nodes {
                            tagName
                        }
                    }
                }
            }`, {
                headers: {
                    authorization: `token ${token}`
                }
            });
            const releases = repository.releases.nodes.reverse();
            let latestValidRelease = releases.find(release => isValidVersion(release.tagName, type));
            if (latestValidRelease)
                return latestValidRelease.tagName;
        }
        catch (err) {
            core.warning(util.format("Error while fetching the latest Helm %s release. Error: %s. Using default Helm version %s.", type, err.toString(), getStableHelmVersionFor(type)));
            return getStableHelmVersionFor(type);
        }
        core.warning(util.format("Could not find stable release for Helm %s. Using default Helm version %s.", type, getStableHelmVersionFor(type)));
        return getStableHelmVersionFor(type);
    });
}
function getStableHelmVersionFor(type) {
    return type === "v2" ? stableHelm2Version : stableHelm3Version;
}
// isValidVersion checks if verison matches the specified type and is a stable release
function isValidVersion(version, type) {
    if (!version.toLocaleLowerCase().startsWith(type))
        return false;
    return version.indexOf('rc') == -1;
}
function findHelm(rootFolder) {
    fs.chmodSync(rootFolder, '777');
    var filelist = [];
    walkSync(rootFolder, filelist, helmToolName + getExecutableExtension());
    if (!filelist) {
        throw new Error(util.format("Helm executable not found in path ", rootFolder));
    }
    else {
        return filelist[0];
    }
}
function run() {
    return __awaiter(this, void 0, void 0, function* () {
        let version = core.getInput('version', { 'required': true });
        if (process.env['HELM_INSTALLER_LEGACY_VERSIONING'] == 'true') {
            if (version.toLocaleLowerCase() === 'latest') {
                version = yield getStableHelmVersion();
            }
            else if (!version.toLocaleLowerCase().startsWith('v')) {
                version = 'v' + version;
            }
        }
        else {
            if (version.toLocaleLowerCase() === 'latest' || version === LATEST_HELM3_VERSION) {
                version = yield getLatestHelmVersionFor("v3");
            }
            else if (version === LATEST_HELM2_VERSION) {
                version = yield getLatestHelmVersionFor("v2");
            }
            else if (!version.toLocaleLowerCase().startsWith('v')) {
                version = 'v' + version;
            }
        }
        core.debug(util.format("Downloading %s", version));
        let cachedPath = yield downloadHelm(version);
        try {
            if (!process.env['PATH'].startsWith(path.dirname(cachedPath))) {
                core.addPath(path.dirname(cachedPath));
            }
        }
        catch (_a) {
            //do nothing, set as output variable
        }
        console.log(`Helm tool version: '${version}' has been cached at ${cachedPath}`);
        core.setOutput('helm-path', cachedPath);
    });
}
run().catch(core.setFailed);