/* global sendMessage */

"use strict";

document.addEventListener("DOMContentLoaded", () => {

  const showCounter = document.getElementById("showCounter");
  const autoUpdateRulesets = document.getElementById("autoUpdateRulesets");
  const enableMixedRulesets = document.getElementById("enableMixedRulesets");
  const showDevtoolsTab = document.getElementById("showDevtoolsTab");

  const defaultOptions = {
    showCounter: true,
    autoUpdateRulesets: true,
    enableMixedRulesets: false,
    showDevtoolsTab: true
  };

  sendMessage("get_option", defaultOptions, item => {
    showCounter.checked = item.showCounter;
    autoUpdateRulesets.checked = item.autoUpdateRulesets;
    enableMixedRulesets.checked = item.enableMixedRulesets;
    showDevtoolsTab.checked = item.showDevtoolsTab;

    showCounter.addEventListener("change", () => {
      sendMessage("set_option", { showCounter: showCounter.checked });
    });

    autoUpdateRulesets.addEventListener("change", () => {
      sendMessage("set_option", { autoUpdateRulesets: autoUpdateRulesets.checked });
    });

    enableMixedRulesets.addEventListener("change", () => {
      sendMessage("set_option", { enableMixedRulesets: enableMixedRulesets.checked });
    });

    showDevtoolsTab.addEventListener("change", () => {
      sendMessage("set_option", { showDevtoolsTab: showDevtoolsTab.checked });
    });
  });

  function onlyShowSection(sectionId){
    document.querySelectorAll('.section-wrapper').forEach(sw => {
      sw.style.display = "none";
    });
    document.getElementById(sectionId).style.display = "block";
  }
  onlyShowSection('general-settings-wrapper');

  document.querySelectorAll('.section-header-span').forEach(shs => {
    shs.addEventListener("click", () => {
      document.querySelectorAll('.section-header-span').forEach(shs => {
        shs.classList.remove("active");
        shs.classList.add("inactive");
      });
      shs.classList.remove("inactive");
      shs.classList.add("active");
      onlyShowSection(shs.dataset.show);
    });
  });

  function create_update_channel_element(update_channel, last_updated, pinned){
    let ruleset_version_string;

    if(last_updated){
      const ruleset_date = new Date(last_updated * 1000);
      ruleset_version_string = ruleset_date.getUTCFullYear() + "." + (ruleset_date.getUTCMonth() + 1) + "." + ruleset_date.getUTCDate();
    } else {
      ruleset_version_string = "n/a";
    }

    const update_channel_div = document.createElement('div');
    update_channel_div.className = "update-channel";

    const update_channel_name = document.createElement('div');
    update_channel_name.className = "update-channel-name";
    update_channel_name.innerText = update_channel.name;
    update_channel_div.appendChild(update_channel_name);
    const update_channel_last_updated = document.createElement('div');
    update_channel_last_updated.className = "update-channel-last-updated";
    update_channel_last_updated.innerText = chrome.i18n.getMessage("options_storedRulesetsVersion") + ruleset_version_string;
    update_channel_name.appendChild(update_channel_last_updated);

    const update_channel_row_jwk = document.createElement('div');
    update_channel_row_jwk.className = "update-channel-row-jwk";
    update_channel_div.appendChild(update_channel_row_jwk);
    const update_channel_jwk_column_left = document.createElement('div');
    update_channel_jwk_column_left.className = "update-channel-column-left";
    update_channel_jwk_column_left.innerText = "JWK:";
    update_channel_row_jwk.appendChild(update_channel_jwk_column_left);
    const update_channel_jwk_column_right = document.createElement('div');
    update_channel_jwk_column_right.className = "update-channel-column-right";
    update_channel_row_jwk.appendChild(update_channel_jwk_column_right);
    const update_channel_jwk = document.createElement('textarea');
    update_channel_jwk.className = "update-channel-jwk";
    update_channel_jwk.setAttribute("data-name", update_channel.name);
    update_channel_jwk.disabled = pinned;
    update_channel_jwk.innerText = JSON.stringify(update_channel.jwk);
    update_channel_jwk_column_right.appendChild(update_channel_jwk);

    const update_channel_row_path_prefix = document.createElement('div');
    update_channel_row_path_prefix.className = "update-channel-row-path-prefix";
    update_channel_div.appendChild(update_channel_row_path_prefix);
    const update_channel_path_prefix_column_left = document.createElement('div');
    update_channel_path_prefix_column_left.className = "update-channel-column-left";
    update_channel_path_prefix_column_left.innerText = "Path Prefix:";
    update_channel_row_path_prefix.appendChild(update_channel_path_prefix_column_left);
    const update_channel_path_prefix_column_right = document.createElement('div');
    update_channel_path_prefix_column_right.className = "update-channel-column-right";
    update_channel_row_path_prefix.appendChild(update_channel_path_prefix_column_right);
    const update_channel_path_prefix = document.createElement('input');
    update_channel_path_prefix.setAttribute("type", "text");
    update_channel_path_prefix.className = "update-channel-path-prefix";
    update_channel_path_prefix.setAttribute("data-name", update_channel.name);
    update_channel_path_prefix.disabled = pinned;
    update_channel_path_prefix.value = update_channel.update_path_prefix;
    update_channel_path_prefix_column_right.appendChild(update_channel_path_prefix);

    const update_channel_row_controls = document.createElement('div');
    update_channel_row_controls.className = "update-channel-row-controls";
    update_channel_div.appendChild(update_channel_row_controls);
    const update_channel_controls_column_left = document.createElement('div');
    update_channel_controls_column_left.className = "update-channel-column-left";
    update_channel_controls_column_left.innerText = " ";
    update_channel_row_controls.appendChild(update_channel_controls_column_left);
    const update_channel_controls_column_right = document.createElement('div');
    update_channel_controls_column_right.className = "update-channel-column-right";
    update_channel_row_controls.appendChild(update_channel_controls_column_right);
    const update_channel_update = document.createElement('button');
    update_channel_update.className = "update-channel-update";
    update_channel_update.setAttribute("data-name", update_channel.name);
    update_channel_update.disabled = pinned;
    update_channel_update.innerText = chrome.i18n.getMessage("options_update");
    update_channel_controls_column_right.appendChild(update_channel_update);
    const update_channel_delete = document.createElement('button');
    update_channel_delete.className = "update-channel-update";
    update_channel_delete.setAttribute("data-name", update_channel.name);
    update_channel_delete.disabled = pinned;
    update_channel_delete.innerText = chrome.i18n.getMessage("options_delete");
    update_channel_controls_column_right.appendChild(update_channel_delete);

    const clearer = document.createElement('div');
    clearer.className = "clearer";
    update_channel_div.appendChild(clearer);

    update_channel_delete.addEventListener("click", () => {
      sendMessage("delete_update_channel", update_channel.name, () => {
        render_update_channels();
      });
    });

    update_channel_update.addEventListener("click", () => {
      sendMessage("update_update_channel", {
        name: update_channel.name,
        jwk: JSON.parse(update_channel_jwk.value),
        update_path_prefix: update_channel_path_prefix.value
      }, () => {
        render_update_channels();
      });
    });

    return update_channel_div;
  }

  function render_update_channels(){
    const update_channels_list = document.getElementById("update-channels-list");
    while(update_channels_list.firstChild){
      update_channels_list.removeChild(update_channels_list.firstChild);
    }

    sendMessage("get_pinned_update_channels", null, item => {
      for(const update_channel of item.update_channels){
        update_channels_list.appendChild(
          create_update_channel_element(
            update_channel,
            item.last_updated[update_channel.name],
            true
          )
        );

      }
    });

    sendMessage("get_stored_update_channels", null, item => {
      for(const update_channel of item.update_channels){
        update_channels_list.appendChild(
          create_update_channel_element(
            update_channel,
            item.last_updated[update_channel.name],
            false
          )
        );
      }
    });
  }
  render_update_channels();

  const add_update_channel = document.getElementById("add-update-channel");
  const update_channel_name_div = document.getElementById("update-channel-name");
  const update_channels_error_text = document.getElementById("update-channels-error-text");
  const update_channels_error = document.getElementById("update-channels-error");
  update_channel_name_div.setAttribute("placeholder", chrome.i18n.getMessage("options_enterUpdateChannelName"));

  function displayError(text){
    update_channels_error_text.innerText = text;
    update_channels_error.style.display = "block";
    window.scrollTo(0,0);
  }

  add_update_channel.addEventListener("click", () => {
    const update_channel_name = update_channel_name_div.value;
    if(update_channel_name.trim() == ""){
      displayError("Error: The update channel name is blank.  Please enter another name.");
    } else {
      update_channel_name_div.value = "";
      sendMessage("create_update_channel", update_channel_name, result => {
        if(result == true){
          render_update_channels();
        } else {
          displayError("Error: There already exists an update channel with this name.");
        }
      });
    }
  });

  const update_channels_error_hide = document.getElementById("update-channels-error-hide");
  update_channels_error_hide.addEventListener("click", () => {
    update_channels_error.style.display = "none";
  });

  const update_channels_last_checked = document.getElementById("update-channels-last-checked");
  sendMessage("get_last_checked", null, last_checked => {
    let last_checked_string;
    if(last_checked){
      const last_checked_date = new Date(last_checked * 1000);
      const options = {
        year: '2-digit',
        month: '2-digit',
        day: '2-digit',
        hour: '2-digit',
        minute: '2-digit',
        timeZoneName: 'short'
      };
      const customDateTime = new Intl.DateTimeFormat('default', options).format;
      last_checked_string = customDateTime(last_checked_date);
    } else {
      last_checked_string = chrome.i18n.getMessage("options_updatesLastCheckedNever");
    }
    update_channels_last_checked.innerText = chrome.i18n.getMessage("options_updatesLastChecked") + last_checked_string;
  });

  document.onkeydown = function(evt) {
    evt = evt || window.event;
    if (evt.ctrlKey && evt.keyCode == 90) {
      window.open("/pages/debugging-rulesets/index.html");
    }
  };
});
