"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.CodeGenerator = void 0;
var _events = require("events");
/**
 * Copyright (c) Microsoft Corporation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

class CodeGenerator extends _events.EventEmitter {
  constructor(browserName, enabled, launchOptions, contextOptions, deviceName, saveStorage) {
    super();

    // Make a copy of options to modify them later.
    this._currentAction = null;
    this._lastAction = null;
    this._actions = [];
    this._enabled = void 0;
    this._options = void 0;
    launchOptions = {
      headless: false,
      ...launchOptions
    };
    contextOptions = {
      ...contextOptions
    };
    this._enabled = enabled;
    this._options = {
      browserName,
      launchOptions,
      contextOptions,
      deviceName,
      saveStorage
    };
    this.restart();
  }
  restart() {
    this._currentAction = null;
    this._lastAction = null;
    this._actions = [];
    this.emit('change');
  }
  setEnabled(enabled) {
    this._enabled = enabled;
  }
  addAction(action) {
    if (!this._enabled) return;
    this.willPerformAction(action);
    this.didPerformAction(action);
  }
  willPerformAction(action) {
    if (!this._enabled) return;
    this._currentAction = action;
  }
  performedActionFailed(action) {
    if (!this._enabled) return;
    if (this._currentAction === action) this._currentAction = null;
  }
  didPerformAction(actionInContext) {
    if (!this._enabled) return;
    const action = actionInContext.action;
    let eraseLastAction = false;
    if (this._lastAction && this._lastAction.frame.pageAlias === actionInContext.frame.pageAlias) {
      const lastAction = this._lastAction.action;
      // We augment last action based on the type.
      if (this._lastAction && action.name === 'fill' && lastAction.name === 'fill') {
        if (action.selector === lastAction.selector) eraseLastAction = true;
      }
      if (lastAction && action.name === 'click' && lastAction.name === 'click') {
        if (action.selector === lastAction.selector && action.clickCount > lastAction.clickCount) eraseLastAction = true;
      }
      if (lastAction && action.name === 'navigate' && lastAction.name === 'navigate') {
        if (action.url === lastAction.url) {
          // Already at a target URL.
          this._currentAction = null;
          return;
        }
      }
      // Check and uncheck erase click.
      if (lastAction && (action.name === 'check' || action.name === 'uncheck') && lastAction.name === 'click') {
        if (action.selector === lastAction.selector) eraseLastAction = true;
      }
    }
    this._lastAction = actionInContext;
    this._currentAction = null;
    if (eraseLastAction) this._actions.pop();
    this._actions.push(actionInContext);
    this.emit('change');
  }
  commitLastAction() {
    if (!this._enabled) return;
    const action = this._lastAction;
    if (action) action.committed = true;
  }
  signal(pageAlias, frame, signal) {
    if (!this._enabled) return;

    // Signal either arrives while action is being performed or shortly after.
    if (this._currentAction) {
      this._currentAction.action.signals.push(signal);
      return;
    }
    if (this._lastAction && !this._lastAction.committed) {
      const signals = this._lastAction.action.signals;
      if (signal.name === 'navigation' && signals.length && signals[signals.length - 1].name === 'download') return;
      if (signal.name === 'download' && signals.length && signals[signals.length - 1].name === 'navigation') signals.length = signals.length - 1;
      this._lastAction.action.signals.push(signal);
      this.emit('change');
      return;
    }
    if (signal.name === 'navigation') {
      this.addAction({
        frame: {
          pageAlias,
          isMainFrame: frame._page.mainFrame() === frame,
          url: frame.url()
        },
        committed: true,
        action: {
          name: 'navigate',
          url: frame.url(),
          signals: []
        }
      });
    }
  }
  generateStructure(languageGenerator) {
    const header = languageGenerator.generateHeader(this._options);
    const footer = languageGenerator.generateFooter(this._options.saveStorage);
    const actions = this._actions.map(a => languageGenerator.generateAction(a)).filter(Boolean);
    const text = [header, ...actions, footer].join('\n');
    return {
      header,
      footer,
      actions,
      text
    };
  }
}
exports.CodeGenerator = CodeGenerator;