/*
  Editor-only variables on objects
  selectable
*/

game.loadurs();

player[0].control(debug);

var show_frame = true;

var editor = {
  toString() {
    return "editor";
  },
  grid_size: 100,
  ruler_mark_px: 100,
  grid_color: Color.green.alpha(0.3),
  machine: undefined,
  device_test: undefined,
  selectlist: [],
  scalelist: [],
  rotlist: [],
  camera: undefined,
  edit_level: undefined /* The current level that is being edited */,
  desktop: undefined /* The editor desktop, where all editing objects live */,
  working_layer: 0,
  get cursor() {
    if (this.selectlist.length === 0) return input.mouse.worldpos();
    return physics.com(this.selectlist.map(x => x.pos));
  },
  edit_mode: "basic",

  get_this() {
    return this.edit_level;
  },

  try_select() {
    /* nullify true if it should set selected to null if it doesn't find an object */
    var go = physics.pos_query(input.mouse.worldpos());
    return this.do_select(go);
  },

  do_select(obj) {
    /* select an object, if it is selectable given the current editor state */
    if (!obj) return;
    if (!obj._ed.selectable) return undefined;

    if (obj.master !== this.edit_level) {
      var testlevel = obj.master;
      while (testlevel && testlevel.master !== world && testlevel.master !== this.edit_level && testlevel !== testlevel.master) testlevel = testlevel.master;
      return testlevel;
    }

    return obj;

    if (this.working_layer > -1 && obj.draw_layer !== this.working_layer) return undefined;

    return obj;
  },

  curpanel: undefined,

  check_level_nested() {
    if (this.edit_level.master) {
      this.openpanel(gen_notify("Can't close a nested level. Save up to the root before continuing."));
      return true;
    }

    return false;
  },

  programmode: false,

  dup_objects(x) {
    var objs = x.slice();
    var duped = [];

    objs.forEach(x => duped.push(x.dup()));
    return duped;
  },

  sel_start: [],

  mover(amt, snap) {
    return function (go) {
      go.pos = go.pos.add(amt);
    };
  },

  step_amt() {
    return input.keyboard.down("shift") ? 10 : 1;
  },

  on_grid(pos) {
    return pos.every(function (x) {
      return x % editor.grid_size === 0;
    });
  },

  snapper(dir, grid) {
    return function (go) {
      go.pos = go.pos.add(dir.scale(grid / 2));
      go.pos = go.pos.map(function (x) {
        return Math.snap(x, grid);
      }, this);
    };
  },

  key_move(dir) {
    if (!editor.grabselect) return;
    if (input.keyboard.down("ctrl")) this.selectlist.forEach(this.snapper(dir.scale(1.01), editor.grid_size));
    else this.selectlist.forEach(this.mover(dir.scale(this.step_amt())));
  },

  /* Snapmode
     0 No snap
     1 Pixel snap
     2 Grid snap
  */
  snapmode: 0,

  snapped_pos(pos) {
    switch (this.snapmode) {
      case 0:
        return pos;

      case 1:
        return pos.map(function (x) {
          return Math.round(x);
        });

      case 2:
        return pos.map;
    }
  },

  unselect() {
    editor.selectlist = [];
    this.grabselect = [];
    this.scalelist = [];
    this.rotlist = [];
    this.sel_comp = undefined;
  },

  sel_comp: undefined,
  comp_info: false,
  brush_obj: undefined,

  camera_recalls: {},
  camera_recall_stack: [],

  camera_recall_store() {
    this.camera_recall_stack.push({
      pos: this.camera.pos,
      zoom: this.camera.zoom,
    });
  },

  camera_recall_pop() {
    Object.assign(this.camera, this.camera_recalls.pop());
  },

  camera_recall_clear() {
    this.camera_recall_stack = [];
  },

  input_num_pressed(num) {
    if (input.keyboard.down("ctrl")) {
      this.camera_recalls[num] = {
        pos: this.camera.pos,
        zoom: this.camera.zoom,
      };
      return;
    }

    if (num in this.camera_recalls) Object.assign(this.camera, this.camera_recalls[num]);
  },

  zoom_to_bb(bb) {
    var cwh = bbox.tocwh(bb);

    var xscale = cwh.wh.x / window.width;
    var yscale = cwh.wh.y / window.height;

    var zoom = yscale > xscale ? yscale : xscale;

    this.camera.pos = cwh.c;
    this.camera.zoom = zoom * 1.3;
  },

  z_start: undefined,
  grabselect: undefined,
  mousejoy: undefined,
  joystart: undefined,

  stash: undefined,

  start_play_ed() {
    this.stash = this.desktop.instance_obj();
    world.clear();
    global.mixin("config.js");
    sim.play();
    player[0].uncontrol(this);
    player[0].control(limited_editor);
    editor.cbs.forEach(cb => cb());
    editor.cbs = [];
    global.mixin("predbg.js");
    console.warn(`starting game with ${this.dbg_ur}`);
    editor.dbg_play = world.spawn(this.dbg_ur);
    editor.dbg_play.pos = [0, 0];
    global.mixin("debug.js");
  },

  start_play() {
    world.clear();
    global.mixin("config.js");
    sim.play();
    player[0].uncontrol(this);
    player[0].control(limited_editor);
    editor.cbs.forEach(cb => cb());
    editor.cbs = [];
    actor.spawn("game.js");
  },

  cbs: [],

  enter_editor() {
    sim.pause();
    player[0].control(this);
    player[0].uncontrol(limited_editor);

    editor.cbs.push(Register.gui.register(editor.gui.bind(editor)));
    editor.cbs.push(Register.draw.register(editor.draw.bind(editor)));
    editor.cbs.push(Register.debug.register(editor.ed_debug.bind(editor)));
    editor.cbs.push(Register.update.register(gui.controls.update, gui.controls));

    this.desktop = world.spawn();
    world.rename_obj(this.desktop.toString(), "desktop");
    this.edit_level = this.desktop;
    editor.edit_level._ed.selectable = false;
    if (this.stash) {
      this.desktop.make_objs(this.stash.objects);
      Object.dainty_assign(this.desktop, this.stash);
    }
    this.selectlist = [];
    editor.camera = world.spawn("scripts/camera2d");
    editor.camera._ed.selectable = false;
    game.camera = editor.camera;
  },

  openpanel(panel) {
    if (this.curpanel) {
      this.curpanel.close();
      player[0].uncontrol(this.curpanel);
    }

    this.curpanel = panel;
    player[0].control(this.curpanel);
    this.curpanel.open();
  },

  curpanels: [],
  addpanel(panel) {
    this.curpanels.push(panel);
    panel.open();
  },

  cleanpanels(panel) {
    this.curpanels = this.curpanels.filter(function (x) {
      return x.on;
    });
  },

  snapshots: [],
  curlvl: {} /* What the level currently looks like on file */,

  reset_undos() {
    this.snapshots = [];
    this.backshots = [];
  },

  snapshot() {
    return; // TODO: Implement
    var dif = this.edit_level.json_obj();
    if (!dif) return;

    if (this.snapshots.length !== 0) {
      var ddif = ediff(dif, this.snapshots.last());
      if (!ddif) return;
      dif = ddif;
    }

    this.snapshots.push(dif);
    this.backshots = [];
    return;

    this.snapshots.push(dif);

    this.backshots = [];
    this.backshots.push(diff(this.curlvl, cur));
    this.curlvl = cur;
    this.edit_level.check_dirty();
  },

  backshots: [] /* Redo snapshots */,

  restore_lvl(lvl) {
    this.unselect();
    this.edit_level.clear();
    this.edit_level.load(lvl);
    this.edit_level.check_dirty();
  },

  redo() {
    if (Object.empty(this.backshots)) {
      console.info("Nothing to redo.");
      return;
    }

    this.snapshots.push(this.edit_level.save());
    var dd = this.backshots.pop();
    this.edit_level.clear();
    this.edit_level.load(dd);
    this.edit_level.check_dirty();
    this.curlvl = dd;
  },

  undo() {
    if (Object.empty(this.snapshots)) {
      console.info("Nothing to undo.");
      return;
    }
    this.unselect();
    //    this.backshots.push(this.edit_level.save());
    var dd = this.snapshots.pop();
    Object.dainty_assign(this.edit_level, dd);
    this.edit_level.check_dirty();
  },

  restore_buffer() {
    this.restore_level(this.filesnap);
  },

  save_current() {
    if (!this.edit_level.file) {
      this.openpanel(saveaspanel);
      return;
    }
  },

  draw_objects_names(obj, root, depth = 0) {
    if (!obj) return;
    if (!obj.objects) return;
    root = root ? root + "." : root;
    Object.entries(obj.objects).forEach(function (x) {
      var p = root + x[0];
      render.text(p, x[1].this2screen(), 1, editor.color_depths[depth]);
      editor.draw_objects_names(x[1], p, depth + 1);
    });
  },

  _sel_comp: undefined,
  get sel_comp() {
    return this._sel_comp;
  },
  set sel_comp(x) {
    if (this._sel_comp) player[0].uncontrol(this._sel_comp);

    this._sel_comp = x;

    if (this._sel_comp) player[0].control(this._sel_comp);
  },

  time: 0,

  color_depths: [],
  draw() {
    this.selectlist.forEach(x => {
      if ("gizmo" in x && typeof x["gizmo"] === "function") x.gizmo();
    });

    render.line(bbox.topoints(bbox.fromcwh([0, 0], [game.width, game.height])).wrapped(1), Color.green);

    /* Draw selection box */
    if (this.sel_start) {
      var endpos = input.mouse.worldpos();
      var c = [];
      c[0] = (endpos[0] - this.sel_start[0]) / 2;
      c[0] += this.sel_start[0];
      c[1] = (endpos[1] - this.sel_start[1]) / 2;
      c[1] += this.sel_start[1];
      var wh = [];
      wh[0] = Math.abs(endpos[0] - this.sel_start[0]);
      wh[1] = Math.abs(endpos[1] - this.sel_start[1]);
      var bb = bbox.fromcwh(c, wh);
      render.boundingbox(bb, Color.Editor.select.alpha(0.1));
      render.line(bbox.topoints(bb).wrapped(1), Color.white);
    }
  },

  gui() {
    /* Clean out killed objects */
    //    if (show_frame)
    ///      render.line(shape.box(window.rendersize.x, window.rendersize.y).wrapped(1).map(p => game.camera.world2view(p)), Color.yellow);

    render.text([0, 0], game.camera.world2view([0, 0]));

    render.text("WORKING LAYER: " + this.working_layer, [0, 520]);
    render.text("MODE: " + this.edit_mode, [0, 520 - render.font.linegap]);

    if (this.comp_info && this.sel_comp) render.text(input.print_pawn_kbm(this.sel_comp, false), [100, 700], 1);

    render.cross(editor.edit_level.this2screen(), 3, Color.blue);

    var thiso = editor.get_this();
    var clvl = thiso;

    var lvlchain = [];
    while (clvl !== world) {
      lvlchain.push(clvl);
      clvl = clvl.master;
    }
    lvlchain.push(clvl);

    var colormap = ColorMap.Inferno;
    editor.color_depths = [];
    for (var i = 1; i > 0; i -= 0.1) editor.color_depths.push(colormap.sample(i));

    var ypos = 200;
    var depth = 0;
    var alldirty = false;
    for (var lvl of lvlchain) {
      if (!lvl._ed?.selectable) continue;
      if (alldirty) lvl._ed.dirty = true;
      else {
        if (!lvl._ed) continue;
        lvl.check_dirty();
        if (lvl._ed.dirty) alldirty = true;
      }
    }
    lvlchain.reverse();
    lvlchain.forEach(function (x, i) {
      depth = i;
      var lvlstr = x.namestr();
      if (i === lvlchain.length - 1) lvlstr += "[this]";
      render.text(lvlstr, [0, ypos], 1, editor.color_depths[depth]);
      ypos += render.font.linegap;
      render.text("^^^^^^", [0, ypos], 1);
      ypos += render.font.linegap;
    });

    depth++;
    render.text("$$$$$$", [0, ypos], 1, editor.color_depths[depth]);

    this.selectlist.forEach(function (x) {
      render.text(x.urstr(), x.this2screen().add([0, render.font.linegap * 2]), 1, Color.editor.ur);
      render.text(
        x.pos.map(function (x) {
          return Math.round(x);
        }),
        x.this2screen(),
      );
      render.cross(x.this2screen(), 10, Color.blue);
    });

    Object.entries(thiso.objects).forEach(function (x) {
      var p = x[1].namestr();
      render.text(p, x[1].this2screen().add([0, render.font.linegap]), 1, editor.color_depths[depth]);
      render.point(x[1].this2screen(), 5, Color.blue.alpha(0.3));
      render.point(x[1].this2screen(), 1, Color.red);
    });

    var mg = physics.pos_query(input.mouse.worldpos());

    if (mg && mg._ed?.selectable) {
      var p = mg.path_from(thiso);
      render.text(p, input.mouse.screenpos(), 1, Color.teal);
    }

    if (this.rotlist.length === 1) render.text(Math.places(this.rotlist[0].angle, 3), input.mouse.screenpos(), 1, Color.teal);

    if (this.selectlist.length === 1) {
      var i = 1;
      for (var key in this.selectlist[0].components) {
        var selected = this.sel_comp === this.selectlist[0].components[key];
        var str = (selected ? ">" : " ") + key + " [" + this.selectlist[0].components[key].toString() + "]";
        render.text(str, this.selectlist[0].this2screen().add([0, -render.font.linegap * i++]));
      }

      if (this.sel_comp) {
        if ("gizmo" in this.sel_comp) this.sel_comp.gizmo();
      }
    }

    editor.edit_level.objects.forEach(function (obj) {
      if (!obj._ed.selectable) render.text("lock", obj, screenpos());
    });

    render.grid(1, editor.grid_size, editor.grid_color);
    var startgrid = game.camera.view2world([-20, 0]).map(function (x) {
      return Math.snap(x, editor.grid_size);
    });
    var endgrid = game.camera.view2world([window.width, window.height]);

    var w_step = Math.round(((editor.ruler_mark_px / window.width) * (endgrid.x - startgrid.x)) / editor.grid_size) * editor.grid_size;
    if (w_step === 0) w_step = editor.grid_size;

    var h_step = Math.round(((editor.ruler_mark_px / window.height) * (endgrid.y - startgrid.y)) / editor.grid_size) * editor.grid_size;
    if (h_step === 0) h_step = editor.grid_size;

    while (startgrid[0] <= endgrid[0]) {
      render.text(startgrid[0], [game.camera.world2view([startgrid[0], 0])[0], 0]);
      startgrid[0] += w_step;
    }

    while (startgrid[1] <= endgrid[1]) {
      render.text(startgrid[1], [0, game.camera.world2view([0, startgrid[1]])[1]]);
      startgrid[1] += h_step;
    }

    if (this.curpanel && this.curpanel.on) this.curpanel.gui();

    this.curpanels.forEach(function (x) {
      if (x.on) x.gui();
    });
  },

  ed_debug() {
    if (!debug.phys_drawing)
      this.selectlist.forEach(function (x) {
        debug.draw_obj_phys(x);
      });
  },

  killring: [],
  killcom: [],

  lvl_history: [],

  load(urstr) {
    var mur = ur[urstr];
    if (!mur) return;
    var obj = editor.edit_level.spawn(mur);
    obj.set_pos(input.mouse.worldpos());
    this.selectlist = [obj];
  },

  load_prev() {
    if (this.lvl_history.length === 0) return;

    var file = this.lvl_history.pop();
    this.edit_level = Level.loadfile(file);
    this.unselect();
  },

  /* Checking to save an entity as a subtype. */
  /* sub is the name of the (sub)type; obj is the object to save it as */
  /* if saving subtype of 'empty', it appears on the top level */
  saveas_check(sub, obj) {
    if (!sub) {
      console.warn(`Cannot save an object to an empty ur.`);
      return;
    }

    if (!obj) {
      console.warn(`Specify an obejct to save.`);
      return;
    }

    if (obj.ur === "empty") {
      /* make a new type path */
      if (Object.access(ur, sub)) {
        console.warn(`Ur named ${sub} already exists.`);
        return;
      }

      var file = `${sub}.json`;
      io.slurpwrite(file, json.encode(obj.json_obj(), null, 1));
      ur[sub] = {
        name: sub,
        data: file,
        fresh: json.decode(json.encode(obj)),
      };
      obj.ur = sub;

      return;
    } else if (!sub.startsWith(obj.ur)) {
      console.warn(`Cannot make an ur of type ${sub} from an object with the ur ${obj.ur}`);
      return;
    }

    var curur = Object.access(ur, sub);

    if (curur) {
      notifypanel.action = editor.saveas;
      this.openpanel(gen_notify("Entity already exists with that name. Delete first."));
    } else {
      var path = sub.replaceAll(".", "/") + ".json";
      var saveobj = obj.json_obj();
      io.slurpwrite(path, JSON.stringify(saveobj, null, 1));

      if (obj === editor.edit_level) {
        if (obj === editor.desktop) {
          obj.clear();
          var nobj = editor.edit_level.spawn(sub);
          editor.selectlist = [nobj];
          return;
        }
        editor.edit_level = editor.edit_level.master;
      }

      var t = obj.transform();
      editor.unselect();
      obj.kill();
      obj = editor.edit_level.spawn(sub);
      obj.pos = t.pos;
      obj.angle = t.angle;
    }
  },
};

editor.new_object = function () {
  var obj = editor.edit_level.spawn();
  obj.set_pos(input.mouse.worldpos());
  this.selectlist = [obj];
  return obj;
};
editor.new_object.doc = "Create an empty object.";

editor.new_from_img = function (path) {
  var o = editor.new_object();
  o.add_component(component.sprite).path = path;
  return o;
};

editor.inputs = {};
editor.inputs["C-b"] = function () {
  if (this.selectlist.length !== 1) {
    console.warn(`Can only bake a single object at a time.`);
    return;
  }

  var obj = this.selectlist[0];

  obj.components.forEach(function (c) {
    if (typeof c.grow !== "function") return;

    c.grow(obj.scale);
    c.sync?.();
  });
  obj.set_scale([1, 1, 1]);
};

editor.inputs.drop = function (str) {
  str = str.slice(os.cwd().length + 1);
  if (!Resources.is_image(str)) {
    console.warn("NOT AN IMAGE");
    return;
  }

  if (this.selectlist.length === 0) return editor.new_from_img(str);

  if (this.sel_comp?.comp === "sprite") {
    this.sel_comp.path = str;
    return;
  }

  var mg = physics.pos_query(input.mouse.worldpos());
  if (!mg) return;
  var img = mg.get_comp_by_name("sprite");
  if (!img) return;
  img[0].path = str;
};

editor.inputs.f9 = function () {
  os.capture("capture.bmp", 0, 0, 500, 500);
};

editor.inputs.release_post = function () {
  editor.snapshot();

  editor.selectlist?.forEach(x => x.check_dirty());

  /* snap all objects to be pixel perfect */
  game.all_objects(o => (o.pos = o.pos.map(x => Math.round(x))), editor.edit_level);
};
editor.inputs["C-a"] = function () {
  if (!Object.empty(editor.selectlist)) {
    editor.unselect();
    return;
  }
  editor.unselect();
  editor.selectlist = editor.edit_level.objects.slice();
};
editor.inputs["C-a"].doc = "Select all objects.";

editor.inputs["C-`"] = function () {
  editor.openpanel(replpanel);
};
editor.inputs["C-`"].doc = "Open or close the repl.";

editor.inputs.n = function () {
  if (editor.selectlist.length !== 1) return;
  var o = editor.try_select();
  if (!o) return;
  if (o === editor.selectlist[0]) return;
  if (o.master !== editor.selectlist[0].master) return;

  var tpos = editor.selectlist[0].get_pos(editor.selectlist[0].master);
  tpos.x *= -1;
  o.set_pos(tpos, o.master);
};
editor.inputs.n.doc = "Set the hovered object's position to mirror the selected object's position on the X axis.";
editor.inputs["M-n"] = function () {
  if (editor.selectlist.length !== 1) return;
  var o = editor.try_select();
  if (!o) return;
  if (o === editor.selectlist[0]) return;
  if (o.master !== editor.selectlist[0].master) return;

  var tpos = editor.selectlist[0].pos;
  tpos.y *= -1;
  o.pos = tpos;
};
editor.inputs.n.doc = "Set the hovered object's position to mirror the selected object's position on the Y axis.";

/* Return if selected component. */
editor.inputs["h"] = function () {
  var visible = true;
  editor.selectlist.forEach(function (x) {
    if (x.visible) visible = false;
  });
  editor.selectlist.forEach(function (x) {
    x.visible = visible;
  });
};
editor.inputs["h"].doc = "Toggle object hidden.";

editor.inputs["C-h"] = function () {
  world.objects.forEach(function (x) {
    x.visible = true;
  });
};
editor.inputs["C-h"].doc = "Unhide all objects.";

editor.inputs["C-e"] = function () {
  editor.openpanel(assetexplorer);
};
editor.inputs["C-e"].doc = "Open asset explorer.";

editor.inputs["C-l"] = function () {
  editor.openpanel(entitylistpanel);
};
editor.inputs["C-l"].doc = "Open list of spawned entities.";

editor.inputs["C-i"] = function () {
  if (editor.selectlist.length !== 1) return;
  objectexplorer.obj = editor.selectlist[0];
  editor.openpanel(objectexplorer);
};
editor.inputs["C-i"].doc = "Open the object explorer for a selected object.";

editor.inputs["C-d"] = function () {
  if (editor.selectlist.length === 0) return;
  var duped = editor.dup_objects(editor.selectlist);
  editor.unselect();
  editor.selectlist = duped;
};
editor.inputs["C-d"].doc = "Duplicate all selected objects.";

editor.inputs["C-m"] = function () {
  if (editor.sel_comp) {
    if ("flipy" in editor.sel_comp) editor.sel_comp.flipy = !editor.sel_comp.flipy;

    return;
  }

  editor.selectlist.forEach(function (x) {
    x.mirror([0, 1]);
  });
};
editor.inputs["C-m"].doc = "Mirror selected objects on the Y axis.";

editor.inputs.m = function () {
  if (editor.sel_comp) {
    if ("flipx" in editor.sel_comp) editor.sel_comp.flipx = !editor.sel_comp.flipx;

    return;
  }

  editor.selectlist.forEach(obj => obj.grow([-1, 1, 1]));
};
editor.inputs.m.doc = "Mirror selected objects on the X axis.";

editor.inputs.q = function () {
  editor.comp_info = !editor.comp_info;
};
editor.inputs.q.doc = "Toggle help for the selected component.";

editor.inputs.f = function () {
  return;
  if (editor.selectlist.length === 0) return;
  var bb = editor.selectlist[0].boundingbox();
  editor.selectlist.forEach(function (obj) {
    bb = bbox.expand(bb, obj.boundingbox());
  });
  editor.zoom_to_bb(bb);
};
editor.inputs.f.doc = "Find the selected objects.";

editor.inputs["C-f"] = function () {
  if (editor.selectlist.length !== 1) return;

  editor.edit_level = editor.selectlist[0];
  editor.unselect();
  editor.reset_undos();
};
editor.inputs["C-f"].doc = "Tunnel into the selected level object to edit it.";

editor.inputs["M-f"] = function () {
  if (editor.edit_level.master === world) return;

  editor.edit_level = editor.edit_level.master;
  editor.unselect();
  editor.reset_undos();
};
editor.inputs["M-f"].doc = "Tunnel out of the level you are editing, saving it in the process.";
editor.inputs["C-r"] = function () {
  editor.selectlist.forEach(function (x) {
    x.rotate(-x.angle * 2);
  });
};
editor.inputs["C-r"].doc = "Negate the selected's angle.";

editor.inputs.r = function () {
  if (editor.sel_comp && "angle" in editor.sel_comp) {
    var relpos = input.mouse.worldpos().sub(editor.sel_comp.gameobject.pos);
    return;
  }

  editor.rotlist = editor.selectlist;
};
editor.inputs.r.doc = "Rotate selected using the mouse while held down.";
editor.inputs.r.released = function () {
  editor.rotlist = [];
};

editor.inputs.f5 = function () {
  editor.start_play_ed();
};
editor.inputs.f5.doc = "Start game from 'debug' if it exists; otherwise, from 'game'.";

editor.inputs.f6 = function () {
  editor.start_play();
};
editor.inputs.f6.doc = "Start game as if the player started it.";

editor.inputs["M-p"] = function () {
  if (sim.playing()) sim.pause();

  sim.step();
};
editor.inputs["M-p"].doc = "Do one time step, pausing if necessary.";

editor.inputs["C-M-p"] = function () {
  if (!sim.playing()) {
    editor.start_play_ed();
  }
  console.warn(`Starting edited level ...`);
};
editor.inputs["C-M-p"].doc = "Start game from currently edited level.";

editor.inputs["C-q"] = function () {};
editor.inputs["C-q"].doc = "Quit simulation and return to editor.";

var rebinder = {};
rebinder.inputs = {};
rebinder.inputs.any = function (cmd) {};

editor.inputs["C-space"] = function () {};
editor.inputs["C-space"].doc = "Search to execute a specific command.";

editor.inputs["M-m"] = function () {
  //  player[0].control(rebinder);
};
editor.inputs["M-m"].doc = "Rebind a shortcut. Usage: M-m SHORTCUT TARGET";

editor.inputs["M-S-8"] = function () {
  editor.camera_recall_pop();
};
editor.inputs["M-S-8"].doc = "Jump to last location.";

editor.inputs.escape = function () {
  editor.openpanel(quitpanel);
};
editor.inputs.escape.doc = "Quit editor.";

editor.inputs["C-s"] = function () {
  var saveobj = undefined;
  if (editor.selectlist.length === 0) {
    if (editor.edit_level === editor.desktop) {
      saveaspanel.stem = editor.edit_level.ur.toString();
      saveaspanel.obj = editor.edit_level;
      editor.openpanel(saveaspanel);
      return;
    } else saveobj = editor.edit_level;
  } else if (editor.selectlist.length === 1) saveobj = editor.selectlist[0];

  saveobj.check_dirty();
  if (!saveobj._ed.dirty) {
    console.warn(`Object ${saveobj.full_path()} does not need saved.`);
    return;
  }

  var savejs = saveobj.json_obj();
  var tur = saveobj.ur;
  if (!tur) {
    console.warn(`Can't save object because it has no ur.`);
    return;
  }
  if (!tur.data) {
    io.slurpwrite(tur.text.set_ext(".json"), json.encode(savejs, null, 1));
    tur.data = tur.text.set_ext(".json");
  } else {
    var oldjs = json.decode(io.slurp(tur.data));
    Object.merge(oldjs, savejs);
    io.slurpwrite(tur.data, json.encode(oldjs, null, 1));
  }

  Object.merge(tur.fresh, savejs);
  saveobj.check_dirty();

  //  Object.values(saveobj.objects).forEach(function(x) { x.check_dirty(); });

  return;

  game.all_objects(function (x) {
    if (typeof x !== "object") return;
    if (!("_ed" in x)) return;
    if (x._ed.dirty) return;
    x.revert();
    x.check_dirty();
  });
};
editor.inputs["C-s"].doc = "Save selected.";

editor.inputs["C-S"] = function () {
  if (editor.selectlist.length !== 1) return;
  if (this.selectlist[0].ur !== "empty") saveaspanel.stem = this.selectlist[0].ur + ".";
  else saveaspanel.stem = "";

  saveaspanel.obj = this.selectlist[0];
  editor.openpanel(saveaspanel);
};
editor.inputs["C-S"].doc = "Save selected as.";

editor.inputs["C-z"] = function () {
  editor.undo();
};
editor.inputs["C-z"].doc = "Undo the last change made.";

editor.inputs["C-S-z"] = function () {
  editor.redo();
};
editor.inputs["C-S-z"].doc = "Redo the last undo.";

editor.inputs.t = function () {
  editor.selectlist.forEach(function (x) {
    x._ed.selectable = false;
  });
};
editor.inputs.t.doc = "Lock selected objects to make them non selectable.";

editor.inputs["M-t"] = function () {
  editor.edit_level.objects.forEach(function (x) {
    x._ed.selectable = true;
  });
};
editor.inputs["M-t"].doc = "Unlock all objects in current level.";

editor.inputs["C-n"] = editor.new_object;

editor.inputs["C-o"] = function () {
  editor.openpanel(openlevelpanel);
};
editor.inputs["C-o"].doc = "Open a level.";

editor.inputs["C-M-o"] = function () {
  if (editor.selectlist.length === 1 && editor.selectlist[0].file) {
    if (editor.edit_level._ed.dirty) return;
    editor.load(editor.selectlist[0].file);
  }
};
editor.inputs["C-M-o"].doc = "Revert opened level back to its disk form.";

editor.inputs["C-S-o"] = function () {
  if (!editor.edit_level._ed.dirty) editor.load_prev();
};
editor.inputs["C-S-o"].doc = "Open previous level.";

editor.inputs["C-y"] = function () {
  texteditor.on_close = function () {
    editor.edit_level.script = texteditor.value;
  };

  editor.openpanel(texteditor);
  texteditor.value = "";
  texteditor.start();
};
editor.inputs["C-y"].doc = "Open script editor for the level.";

editor.inputs["C-p"] = function () {
  os.system("prosperon");
};

editor.inputs["M-y"] = function () {
  editor.programmode = !editor.programmode;
};
editor.inputs["M-y"].doc = "Toggle program mode.";

editor.inputs.minus = function () {
  if (!Object.empty(editor.selectlist)) {
    editor.selectlist.forEach(function (x) {
      x.draw_layer--;
    });
    return;
  }

  if (editor.working_layer > -1) editor.working_layer--;
};
editor.inputs.minus.doc = "Go down one working layer, or, move selected objects down one layer.";

editor.inputs.plus = function () {
  if (!Object.empty(editor.selectlist)) {
    editor.selectlist.forEach(x => x.draw_layer++);
    return;
  }

  if (editor.working_layer < 4) editor.working_layer++;
};

editor.inputs.plus.doc = "Go up one working layer, or, move selected objects down one layer.";

editor.inputs["C-f1"] = function () {
  editor.edit_mode = "basic";
};
editor.inputs["C-f1"].doc = "Enter basic edit mode.";
editor.inputs["C-f2"] = function () {
  editor.edit_mode = "brush";
};
editor.inputs["C-f2"].doc = "Enter brush mode.";

editor.inputs.f2 = function () {
  if (this.selectlist.length !== 1) return;
  objectexplorer.obj = this.selectlist[0];
  this.openpanel(objectexplorer);
};
editor.inputs.f2.doc = "Open configurations object.";

editor.inputs.f3 = function () {
  if (this.selectlist.length !== 1) return;
  this.openpanel(componentexplorer);
};

editor.inputs.lm = function () {
  editor.sel_start = input.mouse.worldpos();
};
editor.inputs.lm.doc = "Selection box.";

editor.inputs.lm.released = function () {
  input.mouse.normal();
  editor.unselect();

  if (!editor.sel_start) return;

  if (editor.sel_comp) {
    editor.sel_start = undefined;
    return;
  }

  var selects = [];

  /* TODO: selects somehow gets undefined objects in here */
  if (Vector.equal(input.mouse.worldpos(), editor.sel_start, 5)) {
    var sel = editor.try_select();
    if (sel) selects.push(sel);
  } else {
    var box = bbox.frompoints([editor.sel_start, input.mouse.worldpos()]);

    physics.box_query(bbox.tocwh(box), function (entity) {
      var obj = editor.do_select(entity);
      if (obj) selects.push(obj);
    });
  }

  this.sel_start = undefined;
  selects = selects.flat();
  selects = selects.unique();

  if (Object.empty(selects)) return;

  if (input.keyboard.down("shift")) {
    selects.forEach(function (x) {
      this.selectlist.push_unique(x);
    }, this);

    return;
  }

  if (input.keyboard.down("ctrl")) {
    selects.forEach(function (x) {
      delete this.selectlist[x.toString()];
    }, this);

    return;
  }

  editor.selectlist = [];
  selects.forEach(function (x) {
    if (x !== undefined) this.selectlist.push(x);
  }, this);
};

editor.inputs.rm = function () {
  if (editor.brush_obj) editor.brush_obj = undefined;

  if (editor.sel_comp) {
    editor.sel_comp = undefined;
    return;
  }

  editor.unselect();
};

editor.try_pick = function () {
  editor.grabselect = [];

  if (editor.sel_comp && "pick" in editor.sel_comp) return editor.sel_comp.pick(input.mouse.worldpos());

  return editor.try_select();
};

editor.inputs.mm = function () {
  if (editor.brush_obj) {
    editor.selectlist = editor.dup_objects([editor.brush_obj]);
    editor.selectlist[0].pos = input.mouse.worldpos();
    editor.grabselect = editor.selectlist[0];
    return;
  }

  var o = editor.try_pick();
  if (!o) return;
  //  editor.selectlist = [o];
  editor.grabselect = [o];
};
editor.inputs["C-mm"] = editor.inputs.mm;

editor.inputs["C-M-lm"] = function () {
  var go = physics.pos_query(input.mouse.worldpos());
  if (!go) return;
  editor.edit_level = go.master;
};

editor.inputs["C-M-mm"] = function () {
  editor.mousejoy = input.mouse.screenpos();
  editor.joystart = editor.camera.pos;
};

editor.inputs["C-M-rm"] = function () {
  editor.mousejoy = input.mouse.screenpos();
  editor.z_start = editor.camera.zoom;
  input.mouse.disabled();
};

editor.inputs.rm.released = function () {
  editor.mousejoy = undefined;
  editor.z_start = undefined;
  input.mouse.normal();
};

editor.inputs.mm.released = function () {
  input.mouse.normal();
  this.grabselect = [];
  editor.mousejoy = undefined;
  editor.joystart = undefined;
};
editor.inputs.mouse = {};
editor.inputs.mouse.move = function (pos, dpos) {
  if (editor.mousejoy) {
    if (editor.z_start) editor.camera.zoom -= dpos.y / 500;
    else if (editor.joystart) editor.camera.pos = editor.camera.pos.sub(game.camera.dir_view2world(dpos));
  }

  editor.grabselect?.forEach(function (x) {
    x.move(game.camera.dir_view2world(dpos));
    x.sync();
  });

  var relpos = input.mouse.worldpos().sub(editor.cursor);
  var lastpos = relpos.sub(dpos);

  var dist = Vector.length(relpos.add(dpos)) - Vector.length(relpos);
  var scalediff = 1 + dist / editor.scaleoffset;

  editor.scalelist?.forEach(function (x) {
    x.grow(scalediff);
  });

  var anglediff = Math.atan2(relpos.y, relpos.x) - Math.atan2(lastpos.y, lastpos.x);
  editor.rotlist?.forEach(function (x) {
    x.rotate(anglediff / (2 * Math.PI));
    if (input.keyboard.down("shift")) {
      var rotate = Math.nearest(x.angle, 1 / 24) - x.angle;
      x.rotate(rotate);
    }
  });
};

editor.inputs.mouse.scroll = function (scroll) {
  scroll.y *= -1;
  editor.camera.move(game.camera.dir_view2world(scroll.scale(-3)));
};

editor.inputs.mouse["C-scroll"] = function (scroll) {
  editor.camera.zoom += scroll.y / 100;
};

editor.inputs["C-M-S-lm"] = function () {
  editor.selectlist[0].set_center(input.mouse.worldpos());
};
editor.inputs["C-M-S-lm"].doc = "Set world center to mouse position.";

editor.inputs.delete = function () {
  this.selectlist.forEach(x => x.kill());
  this.unselect();
};
editor.inputs.delete.doc = "Delete selected objects.";
editor.inputs["S-d"] = editor.inputs.delete;
editor.inputs["C-k"] = editor.inputs.delete;

editor.inputs["C-u"] = function () {
  this.selectlist.forEach(x => x.revert());
};
editor.inputs["C-u"].doc = "Revert selected objects back to their prefab form.";

editor.inputs["M-u"] = function () {
  this.selectlist.forEach(function (x) {
    x.unique = true;
  });
};
editor.inputs["M-u"].doc = "Make selected objects unique.";

editor.inputs["C-S-g"] = function () {
  editor.openpanel(groupsaveaspanel);
};
editor.inputs["C-S-g"].doc = "Save selected objects as a new level.";

editor.inputs.g = function () {
  if (editor.selectlist.length === 0) {
    var o = editor.try_pick();
    if (!o) return;
    editor.selectlist = [o];
  }

  if (editor.sel_comp) {
    if ("pick" in editor.sel_comp) {
      editor.grabselect = [editor.sel_comp.pick(input.mouse.worldpos())];
      return;
    }

    if ("pos" in editor.sel_comp) {
      var comp = editor.sel_comp;
      var o = {
        pos: editor.sel_comp.pos,
        move(d) {
          comp.pos = comp.pos.add(comp.gameobject.dir_world2this(d));
        },
        sync: comp.sync.bind(comp),
      };
      editor.grabselect = [o];
      return;
    }
  }

  if (editor.sel_comp && "pick" in editor.sel_comp) {
    var o = editor.sel_comp.pick(input.mouse.worldpos());
    if (o) editor.grabselect = [o];
    return;
  }

  editor.grabselect = editor.selectlist.slice();
};

editor.inputs.g.doc = "Move selected objects.";
editor.inputs.g.released = function () {
  editor.grabselect = [];
  input.mouse.normal();
};

editor.inputs.up = function () {
  this.key_move([0, 1]);
};
editor.inputs.up.rep = true;

editor.inputs.left = function () {
  this.key_move([-1, 0]);
};
editor.inputs.left.rep = true;

editor.inputs.right = function () {
  this.key_move([1, 0]);
};
editor.inputs.right.rep = true;

editor.inputs.down = function () {
  this.key_move([0, -1]);
};
editor.inputs.down.rep = true;

editor.inputs.tab = function () {
  if (!(this.selectlist.length === 1)) return;
  if (!this.selectlist[0].components) return;

  var sel = this.selectlist[0].components;

  if (!this.sel_comp) this.sel_comp = sel.nth(0);
  else {
    var idx = sel.findIndex(this.sel_comp) + 1;
    if (idx >= Object.keys(sel).length) this.sel_comp = undefined;
    else this.sel_comp = sel.nth(idx);
  }
};
editor.inputs.tab.doc = "Cycle through selected object's components.";

editor.inputs["C-g"] = function () {
  if (!this.selectlist) return;
  this.selectlist = this.dup_objects(this.selectlist);
  editor.inputs.g();
};
editor.inputs["C-g"].doc = "Duplicate selected objects, then move them.";

editor.inputs["M-g"] = function () {
  if (this.sel_comp && "pick_all" in this.sel_comp) this.grabselect = this.sel_comp.pick_all();
};
editor.inputs["M-g"].doc = "Move all.";

editor.inputs["C-lb"] = function () {
  editor.grid_size -= input.keyboard.down("shift") ? 10 : 1;
  if (editor.grid_size <= 0) editor.grid_size = 1;
};
editor.inputs["C-lb"].doc = "Decrease grid size. Hold shift to decrease it more.";
editor.inputs["C-lb"].rep = true;

editor.inputs["C-rb"] = function () {
  editor.grid_size += input.keyboard.down("shift") ? 10 : 1;
};
editor.inputs["C-rb"].doc = "Increase grid size. Hold shift to increase it more.";
editor.inputs["C-rb"].rep = true;

editor.inputs["C-c"] = function () {
  this.killring = [];
  this.killcom = [];
  this.killcom = physics.com(this.selectlist.map(x => x.pos));

  this.selectlist.forEach(function (x) {
    this.killring.push(x.instance_obj());
  }, this);
};
editor.inputs["C-c"].doc = "Copy selected objects to killring.";

editor.inputs["C-x"] = function () {
  editor.inputs["C-c"].call(editor);
  this.selectlist.forEach(function (x) {
    x.kill();
  });
  editor.unselect();
};
editor.inputs["C-x"].doc = "Cut objects to killring.";

editor.inputs["C-v"] = function () {
  this.unselect();
  this.killring.forEach(function (x) {
    editor.selectlist.push(editor.edit_level.spawn(x));
  });

  this.selectlist.forEach(function (x) {
    x.pos = x.pos.sub(this.killcom).add(this.cursor);
  }, this);
};
editor.inputs["C-v"].doc = "Pull objects from killring to world.";

editor.inputs.char = function (c) {
  if (c === "0") {
    this.camera.pos = [0, 0];
    this.camera.zoom = 1;
  }
};

var brushmode = {};
brushmode.inputs = {};
brushmode.inputs.lm = function () {
  editor.inputs["C-v"].call(editor);
};
brushmode.inputs.lm.doc = "Paste selected brush.";

brushmode.inputs.b = function () {
  if (editor.brush_obj) {
    editor.brush_obj = undefined;
    return;
  }

  if (editor.selectlist.length !== 1) return;
  editor.brush_obj = editor.seliectlist[0];
  editor.unselect();
};
brushmode.inputs.b.doc = "Clear brush, or set a new one.";

var compmode = {};
compmode.inputs = {};
compmode.inputs["C-c"] = function () {}; /* Simply a blocker */
compmode.inputs["C-x"] = function () {};

editor.scalelist = [];
editor.inputs.s = function () {
  editor.scaleoffset = Vector.length(input.mouse.worldpos().sub(editor.cursor));
  editor.scalelist = [];

  if (editor.sel_comp) {
    if (!("scale" in editor.sel_comp)) return;
    editor.scalelist.push(editor.sel_comp);
    return;
  }

  editor.scalelist = editor.selectlist;
};
editor.inputs.s.doc = "Scale selected.";

editor.inputs.s.released = function () {
  this.scalelist = [];
};

var replpanel = Object.copy(inputpanel, {
  title: "",
  closeonsubmit: false,
  wh: [700, 300],
  pos: [50, 50],
  anchor: [0, 1],
  padding: [0, 0],
  scrolloffset: [0, 0],

  guibody() {
    this.win.selectable = true;
    var log = console.transcript;
  },
  prevmark: -1,
  prevthis: [],

  action() {
    if (!this.value) return;
    this.prevthis.unshift(this.value);
    this.prevmark = -1;
    var ecode = "";
    var repl_obj = editor.get_this();
    ecode += `var $ = repl_obj.objects;`;
    for (var key in repl_obj.objects) ecode += `var ${key} = editor.edit_level.objects['${key}'];`;

    ecode += this.value;
    say(this.value);
    this.value = "";
    this.caret = 0;
    var ret = function () {
      return eval(ecode);
    }.call(repl_obj);
    if (typeof ret === "object") ret = json.encode(ret, null, 1);
    if (typeof ret !== "undefined") say(ret);
  },

  resetscroll() {
    this.scrolloffset.y = 0;
  },
});

replpanel.inputs = Object.create(inputpanel.inputs);
replpanel.inputs.block = true;
replpanel.inputs.lm = function () {
  var mg = physics.pos_query(input.mouse.worldpos());
  if (!mg) return;
  var p = mg.path_from(editor.get_this());
  this.value = p;
  this.caret = this.value.length;
};
replpanel.inputs.tab = function () {
  this.resetscroll();
  if (!this.value) return;
  var obj = globalThis;
  var keys = [];
  var keyobj = this.value.tolast(".");
  var o = this.value.tolast(".");
  var stub = this.value.fromlast(".");
  var replobj = editor.selectlist.length === 1 ? "editor.selectlist[0]" : "editor.edit_level";

  if (this.value.startsWith("this.")) keyobj = keyobj.replace("this", replobj);

  if (!this.value.includes(".")) keys.push("this");

  if (eval(`typeof ${keyobj.tofirst(".")}`) === "object" && eval(`typeof ${keyobj.replace(".", "?.")}`) === "object") obj = eval(keyobj);
  else if (this.value.includes(".")) {
    say(`${this.value} is not an object.`);
    return;
  }

  for (var k in obj) keys.push(k);

  for (var k in editor.get_this()) keys.push(k);

  var comp = "";
  if (stub) comp = input.tabcomplete(stub, keys);
  else if (!this.value.includes(".")) comp = input.tabcomplete(o, keys);
  else comp = input.tabcomplete("", keys);

  if (stub) this.value = o + "." + comp;
  else if (this.value.endsWith(".")) this.value = o + "." + comp;
  else this.value = comp;

  this.caret = this.value.length;

  keys = keys.sort();

  keys = keys.map(function (x) {
    if (typeof obj[x] === "function") return esc.color(Color.Apple.orange) + x + esc.reset;
    if (Object.isObject(obj[x])) return esc.color(Color.Apple.purple) + x + esc.reset;
    if (Array.isArray(obj[x])) return esc.color(Color.Apple.green) + x + esc.reset;

    return x;
  });

  if (keys.length > 1) say(keys.join(", "));
};
replpanel.inputs["C-p"] = function () {
  if (this.prevmark >= this.prevthis.length) return;
  this.prevmark++;
  this.value = this.prevthis[this.prevmark];
  this.inputs["C-e"].call(this);
};

replpanel.inputs["C-n"] = function () {
  this.prevmark--;
  if (this.prevmark < 0) {
    this.prevmark = -1;
    this.value = "";
  } else this.value = this.prevthis[this.prevmark];

  this.inputs["C-e"].call(this);
};

replpanel.inputs.mouse = {};
replpanel.inputs.mouse.scroll = function (scroll) {
  if (!this.win.selected) return;

  this.scrolloffset.y += scroll.y;
  if (this.scrolloffset.y < 0) this.scrolloffset.y = 0;
};

replpanel.inputs.mm = function () {
  this.mm = true;
};
replpanel.inputs.mm.released = function () {
  this.mm = false;
};

replpanel.inputs.mouse.move = function (pos, dpos) {
  if (this.mm) this.scrolloffset.y -= dpos.y;
};

replpanel.inputs.up = function () {
  this.scrolloffset.y += 40;
};
replpanel.inputs.up.rep = true;
replpanel.inputs.down = function () {
  this.scrolloffset.y -= 40;
  if (this.scrolloffset.y < 0) this.scrolloffset.y = 0;
};
replpanel.inputs.down.rep = true;

replpanel.inputs.pgup = function () {
  this.scrolloffset.y += 300;
};
replpanel.inputs.pgup.rep = true;

replpanel.inputs.pgdown = function () {
  this.scrolloffset.y -= 300;
  if (this.scrolloffset.y < 0) this.scrolloffset.y = 0;
};
replpanel.inputs.pgdown.rep = true;

var openlevelpanel = Object.copy(inputpanel, {
  title: "open entity",
  action() {
    editor.load(this.value);
  },

  assets: [],
  allassets: [],

  submit_check() {
    if (this.assets.length === 0) return false;

    this.value = this.assets[0];
    return true;
  },

  start() {
    this.allassets = ur._list.sort();
    this.assets = this.allassets.slice();
    this.caret = 0;
    var click_ur = function (btn) {
      this.value = btn.str;
      this.keycb();
      this.submit();
    };
    click_ur = click_ur.bind(this);
  },

  keycb() {
    if (this.value) this.assets = this.allassets.filter(x => x.startsWith(this.value));
    else this.assets = this.allassets.slice();
    }, this);
  },

  guibody() {
  },
});

/* Should set stem to the ur path folloed by a '.' before opening */
var saveaspanel = Object.copy(inputpanel, {
  get title() {
    var full = this.stem ? this.stem : "";
    return `save level as: ${full}.`;
  },

  action() {
    var saveur = this.value;
    if (this.stem) saveur = this.stem + saveur;
    editor.saveas_check(saveur, this.obj);
  },
});

var groupsaveaspanel = Object.copy(inputpanel, {
  title: "group save as",
  action() {
    editor.groupsaveas(editor.selectlist, this.value);
  },
});

var allfiles = [];
allfiles.push(Resources.scripts, Resources.images, Resources.sounds);
allfiles = allfiles.flat();

var assetexplorer = Object.copy(openlevelpanel, {
  title: "asset explorer",
  extensions: allfiles,
  closeonsubmit: false,
  allassets: [],
  action() {
    if (editor.sel_comp && "asset" in editor.sel_comp) editor.sel_comp.asset = this.value;
    else editor.viewasset(this.value);
  },
});

var entitylistpanel = Object.copy(inputpanel, {
  title: "Level object list",
  level: {},
  start() {
    this.master = editor.edit_level;
  },
});

var limited_editor = {};

limited_editor.inputs = {};

limited_editor.inputs["C-p"] = function () {
  if (sim.playing()) sim.pause();
  else sim.play();
};

limited_editor.inputs["M-p"] = function () {
  sim.pause();
  sim.step();
};

limited_editor.inputs["C-q"] = function () {
  world.clear();
  global.mixin("editorconfig.js");
  global.mixin("dbgret.js");

  editor.enter_editor();
};

/* This is used for editing during a paused game */
var limited_editing = {};
limited_editing.inputs = {};

/* This is the editor level & camera - NOT the currently edited level, but a level to hold editor things */
sim.pause();
window.editor = true;
debug.draw_phys = true;

return {
  editor,
};