Bangle.loadWidgets();
Bangle.drawWidgets();

const modeNames = ["Off", "Alarms", "Silent"];
let scheds = require("Storage").readJSON("qmsched.json", 1);
/*scheds = [
  { hr : 6.5, // hours + minutes/60
    last : 0, // last day of the month we fired on - so we don't switch twice in one day!
    mode : 1, // quiet mode (0/1/2)
  }
];*/
if (!scheds) {
  // set default schedule on first load of app
  scheds = [
    {"hr": 8, "mode": 0, "last": 25},
    {"hr": 22, "mode": 1, "last": 25},
  ];
  require("Storage").writeJSON("qmsched.json", scheds);
}

function formatTime(t) {
  const hrs = 0|t;
  const mins = Math.round((t-hrs)*60);
  return (" "+hrs).substr(-2)+":"+("0"+mins).substr(-2);
}

function getCurrentHr() {
  const time = new Date();
  return time.getHours()+(time.getMinutes()/60)+(time.getSeconds()/3600);
}

function showMainMenu() {
  const menu = {
    "": {"title": "Quiet Mode"},
    "Current Mode": {
      value: (require("Storage").readJSON("setting.json", 1) || {}).quiet|0,
      format: v => modeNames[v],
      onchange: function(v) {
        if (v<0) v = 2;
        if (v>2) v = 0;
        require("qmsched").setMode(v);
        this.value = v;
      },
    },
  };
  scheds.sort((a, b) => (a.hr-b.hr));
  scheds.forEach((sched, idx) => {
    const name = modeNames[sched.mode];
    const txt = formatTime(sched.hr)+" ".repeat(14-name.length)+name;
    menu[txt] = function() {
      showEditMenu(idx);
    };
  });
  menu["Add Schedule"] = () => showEditMenu(-1);
  menu["< Back"] = () => {load();};
  return E.showMenu(menu);
}

function showEditMenu(index) {
  const isNew = index<0;
  let hrs = 12, mins = 0;
  let mode = 1;
  if (!isNew) {
    const s = scheds[index];
    hrs = 0|s.hr;
    mins = Math.round((s.hr-hrs)*60);
    mode = s.mode;
  }
  const menu = {
    "": {"title": (isNew ? "Add" : "Edit")+" Schedule"},
    "Hours": {
      value: hrs,
      onchange: function(v) {
        if (v<0) v = 23;
        if (v>23) v = 0;
        hrs = v;
        this.value = v;
      }, // no arrow fn -> preserve 'this'
    },
    "Minutes": {
      value: mins,
      onchange: function(v) {
        if (v<0) v = 59;
        if (v>59) v = 0;
        mins = v;
        this.value = v;
      }, // no arrow fn -> preserve 'this'
    },
    "Switch to": {
      value: mode,
      format: v => modeNames[v],
      onchange: function(v) {
        if (v<0) v = 2;
        if (v>2) v = 0;
        mode = v;
        this.value = v;
      }, // no arrow fn -> preserve 'this'
    },
  };
  function getSched() {
    const hr = hrs+(mins/60);
    let day = 0;
    // If schedule is for tomorrow not today (eg, in the past), set day
    if (hr<getCurrentHr()) {
      day = (new Date()).getDate();
    }
    return {
      hr: hr,
      mode: mode,
      last: day,
    };
  }
  menu["> Save"] = function() {
    if (isNew) {
      scheds.push(getSched());
    } else {
      scheds[index] = getSched();
    }
    require("Storage").writeJSON("qmsched.json", scheds);
    showMainMenu();
  };
  if (!isNew) {
    menu["> Delete"] = function() {
      scheds.splice(index, 1);
      require("Storage").writeJSON("qmsched.json", scheds);
      showMainMenu();
    };
  }
  menu["< Cancel"] = showMainMenu;
  return E.showMenu(menu);
}

showMainMenu();