/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

"use strict";

const {
  ADB_ADDON_STATUS_UPDATED,
  ADB_READY_UPDATED,
  DEBUG_TARGET_COLLAPSIBILITY_UPDATED,
  HIDE_PROFILER_DIALOG,
  NETWORK_LOCATIONS_UPDATE_SUCCESS,
  PROFILER_PAGE_CONTEXT,
  SELECT_PAGE_SUCCESS,
  SHOW_PROFILER_DIALOG,
  SWITCH_PROFILER_CONTEXT,
  TEMPORARY_EXTENSION_INSTALL_FAILURE,
  TEMPORARY_EXTENSION_INSTALL_SUCCESS,
  USB_RUNTIMES_SCAN_START,
  USB_RUNTIMES_SCAN_SUCCESS,
} = require("resource://devtools/client/aboutdebugging/src/constants.js");

function UiState(
  locations = [],
  mutableDebugTargetCollapsibilities = new Map(),
  showHiddenAddons = false
) {
  return {
    adbAddonStatus: null,
    mutableDebugTargetCollapsibilities,
    isAdbReady: false,
    isScanningUsb: false,
    networkLocations: locations,
    profilerContext: PROFILER_PAGE_CONTEXT.DEVTOOLS_REMOTE,
    selectedPage: null,
    showProfilerDialog: false,
    showHiddenAddons,
    temporaryInstallError: null,
    // Incremented on each install failure so a dismissed error message is shown
    // again when a new install fails.
    temporaryInstallErrorCount: 0,
  };
}

function uiReducer(state = UiState(), action) {
  switch (action.type) {
    case ADB_ADDON_STATUS_UPDATED: {
      const { adbAddonStatus } = action;
      return Object.assign({}, state, { adbAddonStatus });
    }

    case ADB_READY_UPDATED: {
      const { isAdbReady } = action;
      return Object.assign({}, state, { isAdbReady });
    }

    case DEBUG_TARGET_COLLAPSIBILITY_UPDATED: {
      const { isCollapsed, key } = action;
      state.mutableDebugTargetCollapsibilities.set(key, isCollapsed);
      return Object.assign({}, state);
    }

    case NETWORK_LOCATIONS_UPDATE_SUCCESS: {
      const { locations } = action;
      return Object.assign({}, state, { networkLocations: locations });
    }

    case SELECT_PAGE_SUCCESS: {
      const { page } = action;
      return Object.assign({}, state, { selectedPage: page });
    }

    case SHOW_PROFILER_DIALOG: {
      return Object.assign({}, state, {
        showProfilerDialog: true,
        // Always start in the devtools-remote view.
        profilerContext: "devtools-remote",
      });
    }

    case HIDE_PROFILER_DIALOG: {
      return Object.assign({}, state, { showProfilerDialog: false });
    }

    case SWITCH_PROFILER_CONTEXT: {
      const { profilerContext } = action;
      return Object.assign({}, state, { profilerContext });
    }

    case USB_RUNTIMES_SCAN_START: {
      return Object.assign({}, state, { isScanningUsb: true });
    }

    case USB_RUNTIMES_SCAN_SUCCESS: {
      return Object.assign({}, state, { isScanningUsb: false });
    }

    case TEMPORARY_EXTENSION_INSTALL_SUCCESS: {
      return Object.assign({}, state, { temporaryInstallError: null });
    }

    case TEMPORARY_EXTENSION_INSTALL_FAILURE: {
      const { error } = action;
      return Object.assign({}, state, {
        temporaryInstallError: error,
        temporaryInstallErrorCount: state.temporaryInstallErrorCount + 1,
      });
    }

    default:
      return state;
  }
}

module.exports = {
  UiState,
  uiReducer,
};
