// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.

require(["jquery", "moment", "jhapi", "utils"], function (
  $,
  moment,
  JHAPI,
  utils,
) {
  "use strict";

  var base_url = window.jhdata.base_url;
  var prefix = window.jhdata.prefix;
  var admin_access = window.jhdata.admin_access;
  var options_form = window.jhdata.options_form;

  var api = new JHAPI(base_url);

  function getRow(element) {
    var original = element;
    while (!element.hasClass("server-row")) {
      element = element.parent();
      if (element[0].tagName === "BODY") {
        console.error("Couldn't find row for", original);
        throw new Error("No server-row found");
      }
    }
    return element;
  }

  function resort(col, order) {
    var query = window.location.search.slice(1).split("&");
    // if col already present in args, remove it
    var i = 0;
    while (i < query.length) {
      if (query[i] === "sort=" + col) {
        query.splice(i, 1);
        if (query[i] && query[i].substr(0, 6) === "order=") {
          query.splice(i, 1);
        }
      } else {
        i += 1;
      }
    }
    // add new order to the front
    if (order) {
      query.unshift("order=" + order);
    }
    query.unshift("sort=" + col);
    // reload page with new order
    window.location = window.location.pathname + "?" + query.join("&");
  }

  $("th").map(function (i, th) {
    th = $(th);
    var col = th.data("sort");
    if (!col || col.length === 0) {
      return;
    }
    var order = th.find("i").hasClass("fa-sort-desc") ? "asc" : "desc";
    th.find("a").click(function () {
      resort(col, order);
    });
  });

  $(".time-col").map(function (i, el) {
    // convert ISO datestamps to nice momentjs ones
    el = $(el);
    var m = moment(new Date(el.text().trim()));
    el.text(m.isValid() ? m.fromNow() : "Never");
  });

  $(".stop-server").click(function () {
    var el = $(this);
    var row = getRow(el);
    var serverName = row.data("server-name");
    var user = row.data("user");
    el.text("stopping...");
    var stop = function (options) {
      return api.stop_server(user, options);
    };
    if (serverName !== "") {
      stop = function (options) {
        return api.stop_named_server(user, serverName, options);
      };
    }
    stop({
      success: function () {
        el.text("stop " + serverName).addClass("hidden");
        row.find(".access-server").addClass("hidden");
        row.find(".start-server").removeClass("hidden");
      },
    });
  });

  $(".delete-server").click(function () {
    var el = $(this);
    var row = getRow(el);
    var serverName = row.data("server-name");
    var user = row.data("user");
    el.text("deleting...");
    api.delete_named_server(user, serverName, {
      success: function () {
        row.remove();
      },
    });
  });

  $(".access-server").map(function (i, el) {
    el = $(el);
    var row = getRow(el);
    var user = row.data("user");
    var serverName = row.data("server-name");
    el.attr(
      "href",
      utils.url_path_join(prefix, "user", user, serverName) + "/",
    );
  });

  if (admin_access && options_form) {
    // if admin access and options form are enabled
    // link to spawn page instead of making API requests
    $(".start-server").map(function (i, el) {
      el = $(el);
      var row = getRow(el);
      var user = row.data("user");
      var serverName = row.data("server-name");
      el.attr(
        "href",
        utils.url_path_join(prefix, "hub/spawn", user, serverName),
      );
    });
    // cannot start all servers in this case
    // since it would mean opening a bunch of tabs
    $("#start-all-servers").addClass("hidden");
  } else {
    $(".start-server").click(function () {
      var el = $(this);
      var row = getRow(el);
      var user = row.data("user");
      var serverName = row.data("server-name");
      el.text("starting...");
      var start = function (options) {
        return api.start_server(user, options);
      };
      if (serverName !== "") {
        start = function (options) {
          return api.start_named_server(user, serverName, options);
        };
      }
      start({
        success: function () {
          el.text("start " + serverName).addClass("hidden");
          row.find(".stop-server").removeClass("hidden");
          row.find(".access-server").removeClass("hidden");
        },
      });
    });
  }

  $(".edit-user").click(function () {
    var el = $(this);
    var row = getRow(el);
    var user = row.data("user");
    var admin = row.data("admin");
    var dialog = $("#edit-user-dialog");
    dialog.data("user", user);
    dialog.find(".username-input").val(user);
    dialog.find(".admin-checkbox").attr("checked", admin === "True");
    dialog.modal();
  });

  $("#edit-user-dialog")
    .find(".save-button")
    .click(function () {
      var dialog = $("#edit-user-dialog");
      var user = dialog.data("user");
      var name = dialog.find(".username-input").val();
      var admin = dialog.find(".admin-checkbox").prop("checked");
      api.edit_user(
        user,
        {
          admin: admin,
          name: name,
        },
        {
          success: function () {
            window.location.reload();
          },
        },
      );
    });

  $(".delete-user").click(function () {
    var el = $(this);
    var row = getRow(el);
    var user = row.data("user");
    var dialog = $("#delete-user-dialog");
    dialog.find(".delete-username").text(user);
    dialog.modal();
  });

  $("#delete-user-dialog")
    .find(".delete-button")
    .click(function () {
      var dialog = $("#delete-user-dialog");
      var username = dialog.find(".delete-username").text();
      console.log("deleting", username);
      api.delete_user(username, {
        success: function () {
          window.location.reload();
        },
      });
    });

  $("#add-users").click(function () {
    var dialog = $("#add-users-dialog");
    dialog.find(".username-input").val("");
    dialog.find(".admin-checkbox").prop("checked", false);
    dialog.modal();
  });

  $("#add-users-dialog")
    .find(".save-button")
    .click(function () {
      var dialog = $("#add-users-dialog");
      var lines = dialog.find(".username-input").val().split("\n");
      var admin = dialog.find(".admin-checkbox").prop("checked");
      var usernames = [];
      lines.map(function (line) {
        var username = line.trim();
        if (username.length) {
          usernames.push(username);
        }
      });

      api.add_users(
        usernames,
        { admin: admin },
        {
          success: function () {
            window.location.reload();
          },
        },
      );
    });

  $("#stop-all-servers").click(function () {
    $("#stop-all-servers-dialog").modal();
  });

  $("#start-all-servers").click(function () {
    $("#start-all-servers-dialog").modal();
  });

  $("#stop-all-servers-dialog")
    .find(".stop-all-button")
    .click(function () {
      // stop all clicks all the active stop buttons
      $(".stop-server").not(".hidden").click();
    });

  function start(el) {
    return function () {
      $(el).click();
    };
  }

  $("#start-all-servers-dialog")
    .find(".start-all-button")
    .click(function () {
      $(".start-server")
        .not(".hidden")
        .each(function (i) {
          setTimeout(start(this), i * 500);
        });
    });

  $("#shutdown-hub").click(function () {
    var dialog = $("#shutdown-hub-dialog");
    dialog.find("input[type=checkbox]").prop("checked", true);
    dialog.modal();
  });

  $("#shutdown-hub-dialog")
    .find(".shutdown-button")
    .click(function () {
      var dialog = $("#shutdown-hub-dialog");
      var servers = dialog.find(".shutdown-servers-checkbox").prop("checked");
      var proxy = dialog.find(".shutdown-proxy-checkbox").prop("checked");
      api.shutdown_hub({
        proxy: proxy,
        servers: servers,
      });
    });
});