import {dragLegendBox} from "../modules/legend";
import {findCell, findGridCell} from "../utils/graphUtils";
import {tip, showMainTip} from "./tooltips";
import {si, convertTemperature} from "@/utils/unitUtils";

export function restoreDefaultEvents() {
  Zoom.setZoomBehavior();
  viewbox.style("cursor", "default").on(".drag", null).on("click", clicked).on("touchmove mousemove", onMouseMove);
  legend.call(d3.drag().on("start", dragLegendBox));
}

// on viewbox click event - run function based on target
function clicked() {
  const el = d3.event.target;
  if (!el || !el.parentElement || !el.parentElement.parentElement) return;
  const parent = el.parentElement;
  const grand = parent.parentElement;
  const great = grand.parentElement;
  const p = d3.mouse(this);
  const i = findCell(p[0], p[1]);

  if (grand.id === "emblems") editEmblem();
  else if (parent.id === "rivers") editRiver(el.id);
  else if (grand.id === "routes") editRoute();
  else if (el.tagName === "tspan" && grand.parentNode.parentNode.id === "labels") editLabel();
  else if (grand.id === "burgLabels") editBurg();
  else if (grand.id === "burgIcons") editBurg();
  else if (parent.id === "ice") editIce();
  else if (parent.id === "terrain") editReliefIcon();
  else if (grand.id === "markers" || great.id === "markers") editMarker();
  else if (grand.id === "coastline") editCoastline();
  else if (great.id === "armies") editRegiment();
  else if (pack.cells.t[i] === 1) {
    const node = byId("island_" + pack.cells.f[i]);
    editCoastline(node);
  } else if (grand.id === "lakes") editLake();
}

const onMouseMove = debounce(handleMouseMove, 100);
function handleMouseMove() {
  const point = d3.mouse(this);
  const i = findCell(point[0], point[1]); // pack cell id
  if (i === undefined) return;

  showNotes(d3.event);
  const gridCell = findGridCell(point[0], point[1], grid);
  if (tooltip.dataset.main) showMainTip();
  else showMapTooltip(point, d3.event, i, gridCell);
  if (cellInfo?.offsetParent) updateCellInfo(point, i, gridCell);
}

// show note box on hover (if any)
function showNotes(event: Event) {
  if (notesEditor?.offsetParent) return;
  let id = event.target.id || event.target.parentNode.id || event.target.parentNode.parentNode.id;
  if (event.target.parentNode.parentNode.id === "burgLabels") id = "burg" + event.target.dataset.id;
  else if (event.target.parentNode.parentNode.id === "burgIcons") id = "burg" + event.target.dataset.id;

  const note = notes.find(note => note.id === id);
  if (note !== undefined && note.legend !== "") {
    document.getElementById("notes").style.display = "block";
    document.getElementById("notesHeader").innerHTML = note.name;
    document.getElementById("notesBody").innerHTML = note.legend;
  } else if (!options.pinNotes && !markerEditor?.offsetParent) {
    document.getElementById("notes").style.display = "none";
    document.getElementById("notesHeader").innerHTML = "";
    document.getElementById("notesBody").innerHTML = "";
  }
}

// show viewbox tooltip if main tooltip is blank
function showMapTooltip(point: number[], event: Event, packCellId: number, gridCellId: number) {
  tip(""); // clear tip
  const path = event.composedPath();
  if (!path[path.length - 8]) return;
  const group = path[path.length - 7].id;
  const subgroup = path[path.length - 8].id;
  const land = pack.cells.h[packCellId] >= 20;

  // specific elements
  if (group === "armies") return tip(event.target.parentNode.dataset.name + ". Click to edit");

  if (group === "emblems" && event.target.tagName === "use") {
    const parent = event.target.parentNode;
    const [g, type] =
      parent.id === "burgEmblems"
        ? [pack.burgs, "burg"]
        : parent.id === "provinceEmblems"
        ? [pack.provinces, "province"]
        : [pack.states, "state"];
    const i = +event.target.dataset.i;
    if (event.shiftKey) highlightEmblemElement(type, g[i]);

    d3.select(event.target).raise();
    d3.select(parent).raise();

    const name = g[i].fullName || g[i].name;
    tip(`${name} ${type} emblem. Click to edit. Hold Shift to show associated area or place`);
    return;
  }

  if (group === "rivers") {
    const river = +event.target.id.slice(5);
    const r = pack.rivers.find(r => r.i === river);
    const name = r ? r.name + " " + r.type : "";
    tip(name + ". Click to edit");
    if (riversOverview?.offsetParent) highlightEditorLine(riversOverview, river, 5000);
    return;
  }

  if (group === "routes") return tip("Click to edit the Route");

  if (group === "terrain") return tip("Click to edit the Relief Icon");

  if (subgroup === "burgLabels" || subgroup === "burgIcons") {
    const burg = +path[path.length - 10].dataset.id;
    const b = pack.burgs[burg];
    const population = si(b.population * populationRate * urbanization);
    tip(`${b.name}. Population: ${population}. Click to edit`);
    if (burgsOverview?.offsetParent) highlightEditorLine(burgsOverview, burg, 5000);
    return;
  }
  if (group === "labels") return tip("Click to edit the Label");

  if (group === "markers") return tip("Click to edit the Marker and pin the marker note");

  if (group === "ruler") {
    const tag = event.target.tagName;
    const className = event.target.getAttribute("class");
    if (tag === "circle" && className === "edge")
      return tip("Drag to adjust. Hold Ctrl and drag to add a point. Click to remove the point");
    if (tag === "circle" && className === "control")
      return tip("Drag to adjust. Hold Shift and drag to keep axial direction. Click to remove the point");
    if (tag === "circle") return tip("Drag to adjust the measurer");
    if (tag === "polyline") return tip("Click on drag to add a control point");
    if (tag === "path") return tip("Drag to move the measurer");
    if (tag === "text") return tip("Drag to move, click to remove the measurer");
  }

  if (subgroup === "burgIcons") return tip("Click to edit the Burg");

  if (subgroup === "burgLabels") return tip("Click to edit the Burg");

  if (group === "lakes" && !land) {
    const lakeId = +event.target.dataset.f;
    const name = pack.features[lakeId]?.name;
    const fullName = subgroup === "freshwater" ? name : name + " " + subgroup;
    tip(`${fullName} lake. Click to edit`);
    return;
  }
  if (group === "coastline") return tip("Click to edit the coastline");

  if (group === "zones") {
    const zone = path[path.length - 8];
    tip(zone.dataset.description);
    if (zonesEditor?.offsetParent) highlightEditorLine(zonesEditor, zone.id, 5000);
    return;
  }

  if (group === "ice") return tip("Click to edit the Ice");

  // covering elements
  if (layerIsOn("togglePrec") && land) tip("Annual Precipitation: " + getFriendlyPrecipitation(packCellId));
  else if (layerIsOn("togglePopulation")) tip(getPopulationTip(packCellId));
  else if (layerIsOn("toggleTemp")) tip("Temperature: " + convertTemperature(grid.cells.temp[gridCellId]));
  else if (layerIsOn("toggleBiomes") && pack.cells.biome[packCellId]) {
    const biome = pack.cells.biome[packCellId];
    tip("Biome: " + biomesData.name[biome]);
    if (biomesEditor?.offsetParent) highlightEditorLine(biomesEditor, biome);
  } else if (layerIsOn("toggleReligions") && pack.cells.religion[packCellId]) {
    const religion = pack.cells.religion[packCellId];
    const r = pack.religions[religion];
    const type = r.type === "Cult" || r.type == "Heresy" ? r.type : r.type + " religion";
    tip(type + ": " + r.name);
    if (religionsEditor?.offsetParent) highlightEditorLine(religionsEditor, religion);
  } else if (pack.cells.state[packCellId] && (layerIsOn("toggleProvinces") || layerIsOn("toggleStates"))) {
    const state = pack.cells.state[packCellId];
    const stateName = pack.states[state].fullName;
    const province = pack.cells.province[packCellId];
    const prov = province ? pack.provinces[province].fullName + ", " : "";
    tip(prov + stateName);
    if (document.getElementById("statesEditor")?.offsetParent) highlightEditorLine(statesEditor, state);
    if (document.getElementById("diplomacyEditor")?.offsetParent) highlightEditorLine(diplomacyEditor, state);
    if (document.getElementById("militaryOverview")?.offsetParent) highlightEditorLine(militaryOverview, state);
    if (document.getElementById("provincesEditor")?.offsetParent) highlightEditorLine(provincesEditor, province);
  } else if (layerIsOn("toggleCultures") && pack.cells.culture[packCellId]) {
    const culture = pack.cells.culture[packCellId];
    tip("Culture: " + pack.cultures[culture].name);
    if (document.getElementById("culturesEditor")?.offsetParent) highlightEditorLine(culturesEditor, culture);
  } else if (layerIsOn("toggleHeight")) tip("Height: " + getFriendlyHeight(point));
}