{"ast":null,"code":"\"use strict\";\n\nvar _classCallCheck = require(\"@babel/runtime-corejs2/helpers/classCallCheck\");\n\nvar _createClass = require(\"@babel/runtime-corejs2/helpers/createClass\");\n\nvar _interopRequireDefault = require(\"@babel/runtime-corejs2/helpers/interopRequireDefault\");\n\nexports.__esModule = true;\nexports[\"default\"] = void 0;\n\nvar _promise = _interopRequireDefault(require(\"@babel/runtime-corejs2/core-js/promise\"));\n\nvar _mitt = _interopRequireDefault(require(\"../next-server/lib/mitt\"));\n\nfunction hasRel(rel, link) {\n  try {\n    link = document.createElement('link');\n    return link.relList.supports(rel);\n  } catch (_unused) {}\n}\n\nvar relPrefetch = hasRel('preload') && !hasRel('prefetch') ? // https://caniuse.com/#feat=link-rel-preload\n// macOS and iOS (Safari does not support prefetch)\n'preload' : // https://caniuse.com/#feat=link-rel-prefetch\n// IE 11, Edge 12+, nearly all evergreen\n'prefetch';\nvar hasNoModule = 'noModule' in document.createElement('script');\n\nfunction normalizeRoute(route) {\n  if (route[0] !== '/') {\n    throw new Error(\"Route name should start with a \\\"/\\\", got \\\"\" + route + \"\\\"\");\n  }\n\n  route = route.replace(/\\/index$/, '/');\n  if (route === '/') return route;\n  return route.replace(/\\/$/, '');\n}\n\nfunction appendLink(href, rel, as) {\n  return new _promise[\"default\"](function (res, rej, link) {\n    link = document.createElement('link');\n    link.crossOrigin = process.crossOrigin;\n    link.href = href;\n    link.rel = rel;\n    if (as) link.as = as;\n    link.onload = res;\n    link.onerror = rej;\n    document.head.appendChild(link);\n  });\n}\n\nvar PageLoader =\n/*#__PURE__*/\nfunction () {\n  function PageLoader(buildId, assetPrefix) {\n    _classCallCheck(this, PageLoader);\n\n    this.buildId = buildId;\n    this.assetPrefix = assetPrefix;\n    this.pageCache = {};\n    this.pageRegisterEvents = (0, _mitt[\"default\"])();\n    this.loadingRoutes = {};\n\n    if (process.env.__NEXT_GRANULAR_CHUNKS) {\n      this.promisedBuildManifest = new _promise[\"default\"](function (resolve) {\n        if (window.__BUILD_MANIFEST) {\n          resolve(window.__BUILD_MANIFEST);\n        } else {\n          window.__BUILD_MANIFEST_CB = function () {\n            resolve(window.__BUILD_MANIFEST);\n          };\n        }\n      });\n    }\n  } // Returns a promise for the dependencies for a particular route\n\n\n  _createClass(PageLoader, [{\n    key: \"getDependencies\",\n    value: function getDependencies(route) {\n      var _this = this;\n\n      return this.promisedBuildManifest.then(function (man) {\n        return man[route] && man[route].map(function (url) {\n          return _this.assetPrefix + \"/_next/\" + encodeURI(url);\n        }) || [];\n      });\n    }\n  }, {\n    key: \"loadPage\",\n    value: function loadPage(route) {\n      return this.loadPageScript(route).then(function (v) {\n        return v.page;\n      });\n    }\n  }, {\n    key: \"loadPageScript\",\n    value: function loadPageScript(route) {\n      var _this2 = this;\n\n      route = normalizeRoute(route);\n      return new _promise[\"default\"](function (resolve, reject) {\n        var fire = function fire(_ref) {\n          var error = _ref.error,\n              page = _ref.page,\n              mod = _ref.mod;\n\n          _this2.pageRegisterEvents.off(route, fire);\n\n          delete _this2.loadingRoutes[route];\n\n          if (error) {\n            reject(error);\n          } else {\n            resolve({\n              page: page,\n              mod: mod\n            });\n          }\n        }; // If there's a cached version of the page, let's use it.\n\n\n        var cachedPage = _this2.pageCache[route];\n\n        if (cachedPage) {\n          var error = cachedPage.error,\n              page = cachedPage.page,\n              mod = cachedPage.mod;\n          error ? reject(error) : resolve({\n            page: page,\n            mod: mod\n          });\n          return;\n        } // Register a listener to get the page\n\n\n        _this2.pageRegisterEvents.on(route, fire); // If the page is loading via SSR, we need to wait for it\n        // rather downloading it again.\n\n\n        if (document.querySelector(\"script[data-next-page=\\\"\" + route + \"\\\"]\")) {\n          return;\n        }\n\n        if (!_this2.loadingRoutes[route]) {\n          _this2.loadingRoutes[route] = true;\n\n          if (process.env.__NEXT_GRANULAR_CHUNKS) {\n            _this2.getDependencies(route).then(function (deps) {\n              deps.forEach(function (d) {\n                if (/\\.js$/.test(d) && !document.querySelector(\"script[src^=\\\"\" + d + \"\\\"]\")) {\n                  _this2.loadScript(d, route, false);\n                }\n\n                if (/\\.css$/.test(d) && !document.querySelector(\"link[rel=stylesheet][href^=\\\"\" + d + \"\\\"]\")) {\n                  appendLink(d, 'stylesheet')[\"catch\"](function () {// FIXME: handle failure\n                    // Right now, this is needed to prevent an unhandled rejection.\n                  });\n                }\n              });\n\n              _this2.loadRoute(route);\n            });\n          } else {\n            _this2.loadRoute(route);\n          }\n        }\n      });\n    }\n  }, {\n    key: \"loadRoute\",\n    value: function loadRoute(route) {\n      route = normalizeRoute(route);\n      var scriptRoute = route === '/' ? '/index.js' : route + \".js\";\n      var url = this.assetPrefix + \"/_next/static/\" + encodeURIComponent(this.buildId) + \"/pages\" + encodeURI(scriptRoute);\n      this.loadScript(url, route, true);\n    }\n  }, {\n    key: \"loadScript\",\n    value: function loadScript(url, route, isPage) {\n      var _this3 = this;\n\n      var script = document.createElement('script');\n\n      if (process.env.__NEXT_MODERN_BUILD && hasNoModule) {\n        script.type = 'module'; // Only page bundle scripts need to have .module added to url,\n        // dependencies already have it added during build manifest creation\n\n        if (isPage) url = url.replace(/\\.js$/, '.module.js');\n      }\n\n      script.crossOrigin = process.crossOrigin;\n      script.src = url;\n\n      script.onerror = function () {\n        var error = new Error(\"Error loading script \" + url);\n        error.code = 'PAGE_LOAD_ERROR';\n\n        _this3.pageRegisterEvents.emit(route, {\n          error: error\n        });\n      };\n\n      document.body.appendChild(script);\n    } // This method if called by the route code.\n\n  }, {\n    key: \"registerPage\",\n    value: function registerPage(route, regFn) {\n      var _this4 = this;\n\n      var register = function register() {\n        try {\n          var mod = regFn();\n          var pageData = {\n            page: mod[\"default\"] || mod,\n            mod: mod\n          };\n          _this4.pageCache[route] = pageData;\n\n          _this4.pageRegisterEvents.emit(route, pageData);\n        } catch (error) {\n          _this4.pageCache[route] = {\n            error: error\n          };\n\n          _this4.pageRegisterEvents.emit(route, {\n            error: error\n          });\n        }\n      };\n\n      if (false) {\n        // Wait for webpack to become idle if it's not.\n        // More info: https://github.com/zeit/next.js/pull/1511\n        if (module.hot && module.hot.status() !== 'idle') {\n          console.log(\"Waiting for webpack to become \\\"idle\\\" to initialize the page: \\\"\" + route + \"\\\"\");\n\n          var check = function check(status) {\n            if (status === 'idle') {\n              module.hot.removeStatusHandler(check);\n              register();\n            }\n          };\n\n          module.hot.status(check);\n          return;\n        }\n      }\n\n      register();\n    }\n  }, {\n    key: \"prefetch\",\n    value: function prefetch(route, isDependency) {\n      var _this5 = this;\n\n      // https://github.com/GoogleChromeLabs/quicklink/blob/453a661fa1fa940e2d2e044452398e38c67a98fb/src/index.mjs#L115-L118\n      // License: Apache 2.0\n      var cn;\n\n      if (cn = navigator.connection) {\n        // Don't prefetch if using 2G or if Save-Data is enabled.\n        if (cn.saveData || /2g/.test(cn.effectiveType)) return _promise[\"default\"].resolve();\n      }\n\n      var url;\n\n      if (isDependency) {\n        url = route;\n      } else {\n        route = normalizeRoute(route);\n        var scriptRoute = (route === '/' ? '/index' : route) + \".js\";\n\n        if (process.env.__NEXT_MODERN_BUILD && hasNoModule) {\n          scriptRoute = scriptRoute.replace(/\\.js$/, '.module.js');\n        }\n\n        url = this.assetPrefix + \"/_next/static/\" + encodeURIComponent(this.buildId) + \"/pages\" + encodeURI(scriptRoute);\n      }\n\n      return _promise[\"default\"].all(document.querySelector(\"link[rel=\\\"\" + relPrefetch + \"\\\"][href^=\\\"\" + url + \"\\\"], script[data-next-page=\\\"\" + route + \"\\\"]\") ? [] : [appendLink(url, relPrefetch, url.match(/\\.css$/) ? 'style' : 'script'), process.env.__NEXT_GRANULAR_CHUNKS && !isDependency && this.getDependencies(route).then(function (urls) {\n        return _promise[\"default\"].all(urls.map(function (url) {\n          return _this5.prefetch(url, true);\n        }));\n      })]).then( // do not return any data\n      function () {}, // swallow prefetch errors\n      function () {});\n    }\n  }]);\n\n  return PageLoader;\n}();\n\nexports[\"default\"] = PageLoader;","map":null,"metadata":{},"sourceType":"script"}