/* Any copyright is dedicated to the Public Domain.
 * http://creativecommons.org/publicdomain/zero/1.0/ */

/* eslint-env mozilla/frame-script */

"use strict";

(function() {
  const TEST_MSG = "ContentSearchUIControllerTest";
  const ENGINE_NAME =
    "browser_searchSuggestionEngine searchSuggestionEngine.xml";
  var gController;

  addMessageListener(TEST_MSG, msg => {
    messageHandlers[msg.data.type](msg.data.data);
  });

  var messageHandlers = {
    init() {
      Services.search.defaultEngine = Services.search.getEngineByName(
        ENGINE_NAME
      );
      let input = content.document.querySelector("input");
      gController = new content.ContentSearchUIController(
        input,
        input.parentNode,
        "test",
        "test"
      );
      content.addEventListener("ContentSearchService", function listener(
        aEvent
      ) {
        if (
          aEvent.detail.type == "State" &&
          gController.defaultEngine.name == ENGINE_NAME
        ) {
          content.removeEventListener("ContentSearchService", listener);
          ack("init");
        }
      });
    },

    key(arg) {
      let keyName = typeof arg == "string" ? arg : arg.key;
      content.synthesizeKey(keyName, arg.modifiers);
      let wait = arg.waitForSuggestions ? waitForSuggestions : cb => cb();
      wait(ack.bind(null, "key"));
    },

    startComposition(arg) {
      content.synthesizeComposition({ type: "compositionstart", data: "" });
      ack("startComposition");
    },

    changeComposition(arg) {
      let data = typeof arg == "string" ? arg : arg.data;
      content.synthesizeCompositionChange({
        composition: {
          string: data,
          clauses: [
            { length: data.length, attr: content.COMPOSITION_ATTR_RAW_CLAUSE },
          ],
        },
        caret: { start: data.length, length: 0 },
      });
      let wait = arg.waitForSuggestions ? waitForSuggestions : cb => cb();
      wait(ack.bind(null, "changeComposition"));
    },

    commitComposition() {
      content.synthesizeComposition({ type: "compositioncommitasis" });
      ack("commitComposition");
    },

    focus() {
      gController.input.focus();
      ack("focus");
    },

    blur() {
      gController.input.blur();
      ack("blur");
    },

    waitForSearch() {
      waitForContentSearchEvent("Search", aData => ack("waitForSearch", aData));
    },

    waitForSearchSettings() {
      waitForContentSearchEvent("ManageEngines", aData =>
        ack("waitForSearchSettings", aData)
      );
    },

    mousemove(itemIndex) {
      let row;
      if (itemIndex == -1) {
        row = gController._table.firstChild;
      } else {
        let allElts = [
          ...gController._suggestionsList.children,
          ...gController._oneOffButtons,
          content.document.getElementById("contentSearchSettingsButton"),
        ];
        row = allElts[itemIndex];
      }
      let event = {
        type: "mousemove",
        clickcount: 0,
      };
      row.addEventListener(
        "mousemove",
        function() {
          ack("mousemove");
        },
        { once: true }
      );
      content.synthesizeMouseAtCenter(row, event);
    },

    click(arg) {
      let eltIdx = typeof arg == "object" ? arg.eltIdx : arg;
      let row;
      if (eltIdx == -1) {
        row = gController._table.firstChild;
      } else {
        let allElts = [
          ...gController._suggestionsList.children,
          ...gController._oneOffButtons,
          content.document.getElementById("contentSearchSettingsButton"),
        ];
        row = allElts[eltIdx];
      }
      let event = arg.modifiers || {};
      // synthesizeMouseAtCenter defaults to sending a mousedown followed by a
      // mouseup if the event type is not specified.
      content.synthesizeMouseAtCenter(row, event);
      ack("click");
    },

    addInputValueToFormHistory() {
      gController.addInputValueToFormHistory();
      ack("addInputValueToFormHistory");
    },

    addDuplicateOneOff() {
      let btn =
        gController._oneOffButtons[gController._oneOffButtons.length - 1];
      let newBtn = btn.cloneNode(true);
      btn.parentNode.appendChild(newBtn);
      gController._oneOffButtons.push(newBtn);
      ack("addDuplicateOneOff");
    },

    removeLastOneOff() {
      gController._oneOffButtons.pop().remove();
      ack("removeLastOneOff");
    },

    reset() {
      // Reset both the input and suggestions by select all + delete. If there was
      // no text entered, this won't have any effect, so also escape to ensure the
      // suggestions table is closed.
      gController.input.focus();
      content.synthesizeKey("a", { accelKey: true });
      content.synthesizeKey("KEY_Delete");
      content.synthesizeKey("KEY_Escape");
      ack("reset");
    },
  };

  function ack(aType, aData) {
    sendAsyncMessage(TEST_MSG, { type: aType, data: aData || currentState() });
  }

  function waitForSuggestions(cb) {
    let observer = new content.MutationObserver(() => {
      if (gController.input.getAttribute("aria-expanded") == "true") {
        observer.disconnect();
        cb();
      }
    });
    observer.observe(gController.input, {
      attributes: true,
      attributeFilter: ["aria-expanded"],
    });
  }

  function waitForContentSearchEvent(messageType, cb) {
    let mm = content.SpecialPowers.Cc[
      "@mozilla.org/globalmessagemanager;1"
    ].getService();
    mm.addMessageListener("ContentSearch", function listener(aMsg) {
      if (aMsg.data.type != messageType) {
        return;
      }
      mm.removeMessageListener("ContentSearch", listener);
      cb(aMsg.data.data);
    });
  }

  function currentState() {
    let state = {
      selectedIndex: gController.selectedIndex,
      selectedButtonIndex: gController.selectedButtonIndex,
      numSuggestions: gController._table.hidden
        ? 0
        : gController.numSuggestions,
      suggestionAtIndex: [],
      isFormHistorySuggestionAtIndex: [],

      tableHidden: gController._table.hidden,

      inputValue: gController.input.value,
      ariaExpanded: gController.input.getAttribute("aria-expanded"),
    };

    if (state.numSuggestions) {
      for (let i = 0; i < gController.numSuggestions; i++) {
        state.suggestionAtIndex.push(gController.suggestionAtIndex(i));
        state.isFormHistorySuggestionAtIndex.push(
          gController.isFormHistorySuggestionAtIndex(i)
        );
      }
    }

    return state;
  }
})();