text: "use strict";
  var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
      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) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
          step((generator = generator.apply(thisArg, _arguments || [])).next());
      });
  };
  var __importStar = (this && this.__importStar) || function (mod) {
      if (mod && mod.__esModule) return mod;
      var result = {};
      if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
      result["default"] = mod;
      return result;
  };
  Object.defineProperty(exports, "__esModule", { value: true });
  // Load tempDirectory before it gets wiped by tool-cache
  let tempDirectory = process.env['RUNNER_TEMPDIRECTORY'] || '';
  const core = __importStar(require("@actions/core"));
  const tc = __importStar(require("@actions/tool-cache"));
  const os = __importStar(require("os"));
  const path = __importStar(require("path"));
  const util = __importStar(require("util"));
  const semver = __importStar(require("semver"));
  const restm = __importStar(require("typed-rest-client/RestClient"));
  let osPlat = os.platform();
  let osArch = os.arch();
  if (!tempDirectory) {
      let baseLocation;
      if (process.platform === 'win32') {
          // On windows use the USERPROFILE env variable
          baseLocation = process.env['USERPROFILE'] || 'C:\\';
      }
      else {
          if (process.platform === 'darwin') {
              baseLocation = '/Users';
          }
          else {
              baseLocation = '/home';
          }
      }
      tempDirectory = path.join(baseLocation, 'actions', 'temp');
  }
  function getGo(version) {
      return __awaiter(this, void 0, void 0, function* () {
          const selected = yield determineVersion(version);
          if (selected) {
              version = selected;
          }
          // check cache
          let toolPath;
          toolPath = tc.find('go', normalizeVersion(version));
          if (!toolPath) {
              // download, extract, cache
              toolPath = yield acquireGo(version);
              core.debug('Go tool is cached under ' + toolPath);
          }
          setGoEnvironmentVariables(toolPath);
          toolPath = path.join(toolPath, 'bin');
          //
          // prepend the tools path. instructs the agent to prepend for future tasks
          //
          core.addPath(toolPath);
      });
  }
  exports.getGo = getGo;
  function acquireGo(version) {
      return __awaiter(this, void 0, void 0, function* () {
          //
          // Download - a tool installer intimately knows how to get the tool (and construct urls)
          //
          let fileName = getFileName(version);
          let downloadUrl = getDownloadUrl(fileName);
          core.debug('Downloading Go from: ' + downloadUrl);
          let downloadPath = null;
          try {
              downloadPath = yield tc.downloadTool(downloadUrl);
          }
          catch (error) {
              core.debug(error);
              throw `Failed to download version ${version}: ${error}`;
          }
          //
          // Extract
          //
          let extPath = tempDirectory;
          if (!extPath) {
              throw new Error('Temp directory not set');
          }
          if (osPlat == 'win32') {
              extPath = yield tc.extractZip(downloadPath);
          }
          else {
              extPath = yield tc.extractTar(downloadPath);
          }
          //
          // Install into the local tool cache - node extracts with a root folder that matches the fileName downloaded
          //
          const toolRoot = path.join(extPath, 'go');
          version = normalizeVersion(version);
          return yield tc.cacheDir(toolRoot, 'go', version);
      });
  }
  function getFileName(version) {
      const arches = {
          x64: 'amd64',
          arm: 'armv6l',
          arm64: 'arm64',
          default: '386'
      };
      const platform = osPlat == 'win32' ? 'windows' : osPlat;
      const arch = '386';
      const ext = osPlat == 'win32' ? 'zip' : 'tar.gz';
      const filename = util.format('go%s.%s-%s.%s', version, platform, arch, ext);
      return filename;
  }
  function getDownloadUrl(filename) {
      return util.format('https://storage.googleapis.com/golang/%s', filename);
  }
  function setGoEnvironmentVariables(goRoot) {
      core.exportVariable('GOROOT', goRoot);
      const goPath = process.env['GOPATH'] || '';
      const goBin = process.env['GOBIN'] || '';
      // set GOPATH and GOBIN as user value
      if (goPath) {
          core.exportVariable('GOPATH', goPath);
      }
      if (goBin) {
          core.exportVariable('GOBIN', goBin);
      }
  }
  // This function is required to convert the version 1.10 to 1.10.0.
  // Because caching utility accept only sementic version,
  // which have patch number as well.
  function normalizeVersion(version) {
      const versionPart = version.split('.');
      if (versionPart[1] == null) {
          //append minor and patch version if not available
          return version.concat('.0.0');
      }
      else {
          // handle beta and rc: 1.10beta1 => 1.10.0-beta1, 1.10rc1 => 1.10.0-rc1
          if (versionPart[1].includes('beta') || versionPart[1].includes('rc')) {
              versionPart[1] = versionPart[1]
                  .replace('beta', '.0-beta')
                  .replace('rc', '.0-rc');
              return versionPart.join('.');
          }
      }
      if (versionPart[2] == null) {
          //append patch version if not available
          return version.concat('.0');
      }
      else {
          // handle beta and rc: 1.8.5beta1 => 1.8.5-beta1, 1.8.5rc1 => 1.8.5-rc1
          if (versionPart[2].includes('beta') || versionPart[2].includes('rc')) {
              versionPart[2] = versionPart[2]
                  .replace('beta', '-beta')
                  .replace('rc', '-rc');
              return versionPart.join('.');
          }
      }
      return version;
  }
  function determineVersion(version) {
      return __awaiter(this, void 0, void 0, function* () {
          if (!version.endsWith('.x')) {
              const versionPart = version.split('.');
              if (versionPart[1] == null || versionPart[2] == null) {
                  return yield getLatestVersion(version.concat('.x'));
              }
              else {
                  return version;
              }
          }
          return yield getLatestVersion(version);
      });
  }
  function getLatestVersion(version) {
      return __awaiter(this, void 0, void 0, function* () {
          // clean .x syntax: 1.10.x -> 1.10
          const trimmedVersion = version.slice(0, version.length - 2);
          const versions = yield getPossibleVersions(trimmedVersion);
          core.debug(`evaluating ${versions.length} versions`);
          if (version.length === 0) {
              throw new Error('unable to get latest version');
          }
          core.debug(`matched: ${versions[0]}`);
          return versions[0];
      });
  }
  function getAvailableVersions() {
      return __awaiter(this, void 0, void 0, function* () {
          let rest = new restm.RestClient('setup-go');
          let tags = (yield rest.get('https://golang.org/dl/?mode=json&include=all'))
              .result || [];
          return tags.map(tag => tag.version.replace('go', ''));
      });
  }
  function getPossibleVersions(version) {
      return __awaiter(this, void 0, void 0, function* () {
          const versions = yield getAvailableVersions();
          const possibleVersions = versions.filter(v => v.startsWith(version));
          const versionMap = new Map();
          possibleVersions.forEach(v => versionMap.set(normalizeVersion(v), v));
          return Array.from(versionMap.keys())
              .sort(semver.rcompare)
              .map(v => versionMap.get(v));
      });
  }
  