///<reference path="../../../headers/common.d.ts" />

import _ from "lodash";
import $ from "jquery";
import { MetricsPanelCtrl } from "app/plugins/sdk";
import { transformDataToTable } from "./transformers";
import { tablePanelEditor } from "./editor";
import { columnOptionsTab } from "./column_options";
import { TableRenderer } from "./renderer";

class TablePanelCtrl extends MetricsPanelCtrl {
  static templateUrl = "module.html";

  pageIndex: number;
  dataRaw: any;
  table: any;
  renderer: any;

  panelDefaults = {
    targets: [{}],
    transform: "timeseries_to_columns",
    pageSize: null,
    showHeader: true,
    styles: [
      {
        type: "date",
        pattern: "Time",
        alias: "Time",
        dateFormat: "YYYY-MM-DD HH:mm:ss"
      },
      {
        unit: "short",
        type: "number",
        alias: "",
        decimals: 2,
        colors: [
          "rgba(245, 54, 54, 0.9)",
          "rgba(237, 129, 40, 0.89)",
          "rgba(50, 172, 45, 0.97)"
        ],
        colorMode: null,
        pattern: "/.*/",
        thresholds: []
      }
    ],
    columns: [],
    scroll: true,
    fontSize: "100%",
    sort: { col: 0, desc: true }
  };

  /** @ngInject */
  constructor(
    $scope,
    $injector,
    templateSrv,
    private annotationsSrv,
    private $sanitize,
    private variableSrv
  ) {
    super($scope, $injector);

    this.pageIndex = 0;

    if (this.panel.styles === void 0) {
      this.panel.styles = this.panel.columns;
      this.panel.columns = this.panel.fields;
      delete this.panel.columns;
      delete this.panel.fields;
    }

    _.defaults(this.panel, this.panelDefaults);

    this.events.on("data-received", this.onDataReceived.bind(this));
    this.events.on("data-error", this.onDataError.bind(this));
    this.events.on("data-snapshot-load", this.onDataReceived.bind(this));
    this.events.on("init-edit-mode", this.onInitEditMode.bind(this));
    this.events.on("init-panel-actions", this.onInitPanelActions.bind(this));
  }

  onInitEditMode() {
    this.addEditorTab("Options", tablePanelEditor, 2);
    this.addEditorTab("Column Styles", columnOptionsTab, 3);
  }

  onInitPanelActions(actions) {
    actions.push({ text: "Export CSV", click: "ctrl.exportCsv()" });
  }

  issueQueries(datasource) {
    this.pageIndex = 0;

    if (this.panel.transform === "annotations") {
      this.setTimeQueryStart();
      return this.annotationsSrv
        .getAnnotations({
          dashboard: this.dashboard,
          panel: this.panel,
          range: this.range
        })
        .then(annotations => {
          return { data: annotations };
        });
    }

    return super.issueQueries(datasource);
  }

  onDataError(err) {
    this.dataRaw = [];
    this.render();
  }

  onDataReceived(dataList) {
    this.dataRaw = dataList;
    this.pageIndex = 0;

    // automatically correct transform mode based on data
    if (this.dataRaw && this.dataRaw.length) {
      if (this.dataRaw[0].type === "table") {
        this.panel.transform = "table";
      } else {
        if (this.dataRaw[0].type === "docs") {
          this.panel.transform = "json";
        } else {
          if (
            this.panel.transform === "table" ||
            this.panel.transform === "json"
          ) {
            this.panel.transform = "timeseries_to_rows";
          }
        }
      }
    }

    this.render();
  }

  render() {
    this.table = transformDataToTable(this.dataRaw, this.panel);
    this.table.sort(this.panel.sort);

    this.renderer = new TableRenderer(
      this.panel,
      this.table,
      this.dashboard.isTimezoneUtc(),
      this.$sanitize,
      this.templateSrv
    );

    return super.render(this.table);
  }

  toggleColumnSort(col, colIndex) {
    // remove sort flag from current column
    if (this.table.columns[this.panel.sort.col]) {
      this.table.columns[this.panel.sort.col].sort = false;
    }

    if (this.panel.sort.col === colIndex) {
      if (this.panel.sort.desc) {
        this.panel.sort.desc = false;
      } else {
        this.panel.sort.col = null;
      }
    } else {
      this.panel.sort.col = colIndex;
      this.panel.sort.desc = true;
    }
    this.render();
  }

  exportCsv() {
    var scope = this.$scope.$new(true);
    scope.tableData = this.renderer.render_values();
    scope.panel = "table";
    this.publishAppEvent("show-modal", {
      templateHtml:
        '<export-data-modal panel="panel" data="tableData"></export-data-modal>',
      scope,
      modalClass: "modal--narrow"
    });
  }

  link(scope, elem, attrs, ctrl: TablePanelCtrl) {
    var data;
    var panel = ctrl.panel;
    var pageCount = 0;

    function getTableHeight() {
      var panelHeight = ctrl.height;

      if (pageCount > 1) {
        panelHeight -= 26;
      }

      return panelHeight - 31 + "px";
    }

    function appendTableRows(tbodyElem) {
      ctrl.renderer.setTable(data);
      tbodyElem.empty();
      tbodyElem.html(ctrl.renderer.render(ctrl.pageIndex));
    }

    function switchPage(e) {
      var el = $(e.currentTarget);
      ctrl.pageIndex = parseInt(el.text(), 10) - 1;
      renderPanel();
    }

    function appendPaginationControls(footerElem) {
      footerElem.empty();

      var pageSize = panel.pageSize || 100;
      pageCount = Math.ceil(data.rows.length / pageSize);
      if (pageCount === 1) {
        return;
      }

      var startPage = Math.max(ctrl.pageIndex - 3, 0);
      var endPage = Math.min(pageCount, startPage + 9);

      var paginationList = $("<ul></ul>");

      for (var i = startPage; i < endPage; i++) {
        var activeClass = i === ctrl.pageIndex ? "active" : "";
        var pageLinkElem = $(
          '<li><a class="table-panel-page-link pointer ' +
            activeClass +
            '">' +
            (i + 1) +
            "</a></li>"
        );
        paginationList.append(pageLinkElem);
      }

      footerElem.append(paginationList);
    }

    function renderPanel() {
      var panelElem = elem.parents(".panel");
      var rootElem = elem.find(".table-panel-scroll");
      var tbodyElem = elem.find("tbody");
      var footerElem = elem.find(".table-panel-footer");

      elem.css({ "font-size": panel.fontSize });
      panelElem.addClass("table-panel-wrapper");

      appendTableRows(tbodyElem);
      appendPaginationControls(footerElem);

      rootElem.css({ "max-height": panel.scroll ? getTableHeight() : "" });
    }

    // hook up link tooltips
    elem.tooltip({
      selector: "[data-link-tooltip]"
    });

    function addFilterClicked(e) {
      let filterData = $(e.currentTarget).data();
      var options = {
        datasource: panel.datasource,
        key: data.columns[filterData.column].text,
        value: data.rows[filterData.row][filterData.column],
        operator: filterData.operator
      };

      ctrl.variableSrv.setAdhocFilter(options);
    }

    elem.on("click", ".table-panel-page-link", switchPage);
    elem.on("click", ".table-panel-filter-link", addFilterClicked);

    var unbindDestroy = scope.$on("$destroy", function() {
      elem.off("click", ".table-panel-page-link");
      elem.off("click", ".table-panel-filter-link");
      unbindDestroy();
    });

    ctrl.events.on("render", function(renderData) {
      data = renderData || data;
      if (data) {
        renderPanel();
      }
      ctrl.renderingCompleted();
    });
  }
}

export { TablePanelCtrl, TablePanelCtrl as PanelCtrl };