@patternplate/api/lib/cover.js

Function.prototype.$asyncbind = function $asyncbind(self, catcher) {
  "use strict";

  if (!Function.prototype.$asyncbind) {
    Object.defineProperty(Function.prototype, "$asyncbind", {
      value: $asyncbind,
      enumerable: false,
      configurable: true,
      writable: true
    });
  }

  if (!$asyncbind.trampoline) {
    $asyncbind.trampoline = function trampoline(t, x, s, e, u) {
      return function b(q) {
        while (q) {
          if (q.then) {
            q = q.then(b, e);
            return u ? undefined : q;
          }

          try {
            if (q.pop) {
              if (q.length) return q.pop() ? x.call(t) : q;
              q = s;
            } else q = q.call(t);
          } catch (r) {
            return e(r);
          }
        }
      };
    };
  }

  if (!$asyncbind.LazyThenable) {
    $asyncbind.LazyThenable = function () {
      function isThenable(obj) {
        return obj && obj instanceof Object && typeof obj.then === "function";
      }

      function resolution(p, r, how) {
        try {
          var x = how ? how(r) : r;
          if (p === x) return p.reject(new TypeError("Promise resolution loop"));

          if (isThenable(x)) {
            x.then(function (y) {
              resolution(p, y);
            }, function (e) {
              p.reject(e);
            });
          } else {
            p.resolve(x);
          }
        } catch (ex) {
          p.reject(ex);
        }
      }

      function Chained() {}

      ;
      Chained.prototype = {
        resolve: _unchained,
        reject: _unchained,
        then: thenChain
      };

      function _unchained(v) {}

      function thenChain(res, rej) {
        this.resolve = res;
        this.reject = rej;
      }

      function then(res, rej) {
        var chain = new Chained();

        try {
          this._resolver(function (value) {
            return isThenable(value) ? value.then(res, rej) : resolution(chain, value, res);
          }, function (ex) {
            resolution(chain, ex, rej);
          });
        } catch (ex) {
          resolution(chain, ex, rej);
        }

        return chain;
      }

      function Thenable(resolver) {
        this._resolver = resolver;
        this.then = then;
      }

      ;

      Thenable.resolve = function (v) {
        return Thenable.isThenable(v) ? v : {
          then: function then(resolve) {
            return resolve(v);
          }
        };
      };

      Thenable.isThenable = isThenable;
      return Thenable;
    }();

    $asyncbind.EagerThenable = $asyncbind.Thenable = ($asyncbind.EagerThenableFactory = function (tick) {
      tick = tick || typeof process === "object" && process.nextTick || typeof setImmediate === "function" && setImmediate || function (f) {
        setTimeout(f, 0);
      };

      var soon = function () {
        var fq = [],
            fqStart = 0,
            bufferSize = 1024;

        function callQueue() {
          while (fq.length - fqStart) {
            try {
              fq[fqStart]();
            } catch (ex) {}

            fq[fqStart++] = undefined;

            if (fqStart === bufferSize) {
              fq.splice(0, bufferSize);
              fqStart = 0;
            }
          }
        }

        return function (fn) {
          fq.push(fn);
          if (fq.length - fqStart === 1) tick(callQueue);
        };
      }();

      function Zousan(func) {
        if (func) {
          var me = this;
          func(function (arg) {
            me.resolve(arg);
          }, function (arg) {
            me.reject(arg);
          });
        }
      }

      Zousan.prototype = {
        resolve: function resolve(value) {
          if (this.state !== undefined) return;
          if (value === this) return this.reject(new TypeError("Attempt to resolve promise with self"));
          var me = this;

          if (value && (typeof value === "function" || typeof value === "object")) {
            try {
              var first = 0;
              var then = value.then;

              if (typeof then === "function") {
                then.call(value, function (ra) {
                  if (!first++) {
                    me.resolve(ra);
                  }
                }, function (rr) {
                  if (!first++) {
                    me.reject(rr);
                  }
                });
                return;
              }
            } catch (e) {
              if (!first) this.reject(e);
              return;
            }
          }

          this.state = STATE_FULFILLED;
          this.v = value;
          if (me.c) soon(function () {
            for (var n = 0, l = me.c.length; n < l; n++) STATE_FULFILLED(me.c[n], value);
          });
        },
        reject: function reject(reason) {
          if (this.state !== undefined) return;
          this.state = STATE_REJECTED;
          this.v = reason;
          var clients = this.c;
          if (clients) soon(function () {
            for (var n = 0, l = clients.length; n < l; n++) STATE_REJECTED(clients[n], reason);
          });
        },
        then: function then(onF, onR) {
          var p = new Zousan();
          var client = {
            y: onF,
            n: onR,
            p: p
          };

          if (this.state === undefined) {
            if (this.c) this.c.push(client);else this.c = [client];
          } else {
            var s = this.state,
                a = this.v;
            soon(function () {
              s(client, a);
            });
          }

          return p;
        }
      };

      function STATE_FULFILLED(c, arg) {
        if (typeof c.y === "function") {
          try {
            var yret = c.y.call(undefined, arg);
            c.p.resolve(yret);
          } catch (err) {
            c.p.reject(err);
          }
        } else c.p.resolve(arg);
      }

      function STATE_REJECTED(c, reason) {
        if (typeof c.n === "function") {
          try {
            var yret = c.n.call(undefined, reason);
            c.p.resolve(yret);
          } catch (err) {
            c.p.reject(err);
          }
        } else c.p.reject(reason);
      }

      Zousan.resolve = function (val) {
        if (val && val instanceof Zousan) return val;
        var z = new Zousan();
        z.resolve(val);
        return z;
      };

      Zousan.reject = function (err) {
        if (err && err instanceof Zousan) return err;
        var z = new Zousan();
        z.reject(err);
        return z;
      };

      Zousan.version = "2.3.3-nodent";
      return Zousan;
    })();
  }

  var resolver = this;

  switch (catcher) {
    case true:
      return new $asyncbind.Thenable(boundThen);

    case 0:
      return new $asyncbind.LazyThenable(boundThen);

    case undefined:
      boundThen.then = boundThen;
      return boundThen;

    default:
      return function () {
        try {
          return resolver.apply(self, arguments);
        } catch (ex) {
          return catcher(ex);
        }
      };
  }

  function boundThen() {
    return resolver.apply(self, arguments);
  }
};

function _sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _slicedToArray(arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return _sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }

const path = require("path");

const url = require("url");

const AggregateError = require("aggregate-error");

const unindent = require("unindent");

const stringHash = require("string-hash");

const fromString = require("require-from-string");

const RENDER_PATH = "/patternplate.node.render.js";
const COVER_PATH = "/patternplate.node.cover.js";

module.exports = options => new Promise(function ($return, $error) {
  const config = options.config;
  return $return(function main(req, res) {
    return new Promise(function ($return, $error) {
      var _ref, fs, getModule, cover, context, render, content, error;

      var $Try_3_Post = function () {
        return $return();
      }.$asyncbind(this, $error);

      var $Try_3_Catch = function (err) {
        error = Array.isArray(err) ? new AggregateError(err) : err;
        console.error(error);
        res.status(500).send(error.message);
        return $Try_3_Post();
      }.$asyncbind(this, $error);

      try {
        if (!config.cover) {
          return $return(res.sendStatus(404));
        }

        return wait(options.queue).then(function ($await_4) {
          _ref = $await_4, fs = _ref.fs;
          getModule = fromFs(fs);
          cover = getModule(COVER_PATH);
          context = getContext(config);
          render = typeof cover.render === "function" ? cover.render : getModule(RENDER_PATH);
          return Promise.resolve(render(cover, context)).then(function ($await_5) {
            content = $await_5;
            res.send(html(content, {
              base: req.params.base || "/",
              scripts: typeof cover.default === 'function'
            }));
            return $Try_3_Post();
          }.$asyncbind(this, $Try_3_Catch), $Try_3_Catch);
        }.$asyncbind(this, $Try_3_Catch), $Try_3_Catch);
      } catch (err) {
        $Try_3_Catch(err)
      }
    }.$asyncbind(this));
  });
}.$asyncbind(this)); // Todo: Unify with wait and fromFS, getExports from demo.js


function wait(observable) {
  return new Promise((resolve, reject) => {
    const _observable$queue = _slicedToArray(observable.queue, 1),
          _observable$queue$ = _observable$queue[0],
          message = _observable$queue$ === void 0 ? {} : _observable$queue$;

    switch (message.type) {
      case 'done':
        return resolve(message.payload);

      case 'error':
        return reject(message.payload);

      default:
        observable.subscribe(queue => {
          const _queue = _slicedToArray(queue, 1),
                message = _queue[0];

          switch (message.type) {
            case 'done':
              return resolve(message.payload);

            case 'error':
              return reject(message.payload);

            default:
              return null;
          }
        }, reject);
    }
  });
}

function getContext(config) {
  return {
    dirname: path.dirname(config.cover)
  };
}

function fromFs(fs) {
  return filename => {
    const componentBundleSource = String(fs.readFileSync(filename));
    return getExports(componentBundleSource, filename);
  };
}

const exportsCache = new Map();

function getExports(source, {
  filename
}) {
  const hash = stringHash(source);

  if (!exportsCache.has(hash)) {
    exportsCache.set(hash, fromString(source, filename));
  }

  return exportsCache.get(hash);
}

function html(content, options) {
  const prefix = url.resolve(options.base, "api");
  return unindent(`
    <!doctype html>
    <html lang="en">
      <head>
        <!-- content.head -->
        ${content.head || ""}
        <style>
          /* content.css */
          ${content.css || ""}
        </style>
      </head>
      <body>
        <!-- content.before -->
        ${content.before || ""}
        <!-- content.html -->
        <div data-patternplate-mount="data-patternplate-mount">${content.html || ""}</div>
        <!-- content.after -->
        ${content.after || ""}
        <script src="${prefix}/patternplate.web.probe.js"></script>
        ${options.scripts ? `
          <script src="${prefix}/patternplate.web.cover.js"></script>
          <script src="${prefix}/patternplate.web.mount.js"></script>
          <script src="${prefix}/patternplate.web.cover-client.js"></script>
        ` : ''}
        <script>
          /* content.js */
          ${content.js || ""}
        </script>
      </body>
    </html>
  `);
}
//# sourceMappingURL=cover.js.map