BangleApps/apps/buffgym/buffgym.app.js

const W = g.getWidth();
const H = g.getHeight();
const RED = "#d32e29";
const PINK = "#f05a56";
const WHITE = "#ffffff";

const Set = require("buffgym-set.js");
const Exercise = require("buffgym-exercise.js");
const Program = require("buffgym-program.js");

function centerStringX(str) {
  return (W - g.stringWidth(str)) / 2;
}

function iconIncrement() {
  const img = require("heatshrink").decompress(atob("ikUxH+AA3XAAgNHCJIVMBYXQ5PC4XJ6AUJCIQQBAAoVCCQwjCAA/JCgglHA4IpJBYwTHA4RMJCY5oDJo4THKIQKET5IMGCaY7TMaKLTWajbTFJIlICgoVBFYXJYQYSGCggAGCRAVIBgw"));
  return img;
}

function iconDecrement() {
  const img = require("heatshrink").decompress(atob("ikUxH+AA3XAAgNHCJIVMBYXQ5PC4XJ6AUJCIQQBAAoVCCQwjCAA/JCgglKFJADBCRYABCYQmOFAhNMKIw6FTw4LHCaY7TMaKLTWajbTFJglFCgoVBFYXJYQYSGCggAGCRAVIBgw="));
  return img;
}

function iconOk() {
  const img = require("heatshrink").decompress(atob("ikUxH+AA3XAAgNHCJIVMBYXQ5PC4XJ6AUJCIQQBAAoVCCQwjCAA/JCgglKFJADBCJQxCCYQmMIwZoDJpQMCKIg6KBYwTGFQgeHHYouCCRI7EMYTXFRhILEK5SfFRgYSIborbSbpglFCgoVBFYXJYQYSGCggAGCRAVIBgwA=="));
  return img;
}

function drawMenu(params) {
  const DEFAULT_PARAMS = {
    showBTN1: false,
    showBTN2: false,
    showBTN3: false,
  };
  const p = Object.assign({}, DEFAULT_PARAMS, params);
  if (p.showBTN1) g.drawImage(iconIncrement(), W - 30, 10);
  if (p.showBTN2) g.drawImage(iconOk(), W - 30, 110);
  if (p.showBTN3) g.drawImage(iconDecrement(), W - 30, 210);
}

function clearScreen() {
  g.setColor(RED);
  g.fillRect(0,0,W,H);
}

function drawTitle(exercise) {
  const title = exercise.humanTitle;

  g.setFont("Vector",20);
  g.setColor(WHITE);
  g.drawString(title, centerStringX(title), 5);
}

function drawReps(exercise) {
  const set = exercise.currentSet;
  if (set.isCompleted()) return;

  g.setColor(PINK);
  g.fillCircle(W / 2, H / 2, 50);
  g.setColor(WHITE);
  g.setFont("Vector", 40);
  g.drawString(set.reps, centerStringX(set.reps), (H - 45) / 2);
  g.setFont("Vector", 15);
  const note = `of ${set.maxReps}`;
  g.drawString(note, centerStringX(note), (H / 2) + 25);
}

function drawSets(exercise) {
  const sets = exercise.subTitle;

  g.setColor(WHITE);
  g.setFont("Vector", 15);
  g.drawString(sets, centerStringX(sets), H - 25);
}

function drawSetProgress(exercise) {
  drawTitle(exercise);
  drawReps(exercise);
  drawSets(exercise);
  drawMenu({showBTN1: true, showBTN2: true, showBTN3: true});
}

function drawStartNextExercise() {
  const title = "Good work";
  const msg = "No need to rest\nmove straight on\nto the next exercise";

  g.setColor(WHITE);
  g.setFont("Vector", 35);
  g.drawString(title, centerStringX(title), 10);
  g.setFont("Vector", 15);
  g.drawString(msg, 30, 150);
  drawMenu({showBTN1: false, showBTN2: true, showBTN3: false});
}

function drawProgramCompleted() {
  const title1 = "You did";
  const title2 = "GREAT!";
  const msg = "That's the program\ncompleted. Now eat\nsome food and\nget plenty of rest.";

  clearWatch();
  setWatch(Bangle.showLauncher, BTN2, {repeat: false});

  g.setColor(WHITE);
  g.setFont("Vector", 35);
  g.drawString(title1, centerStringX(title1), 10);
  g.setFont("Vector", 40);
  g.drawString(title2, centerStringX(title2), 50);
  g.setFont("Vector", 15);
  g.drawString(msg, 30, 150);
  drawMenu({showBTN1: false, showBTN2: true, showBTN3: false});
}

/*
function drawExerciseCompleted(program) {
  const exercise = program.currentExercise();
  const title = exercise.canProgress?
        "WELL DONE!" :
        "NOT BAD!";
  const msg = exercise.canProgress? 
        `You weight is automatically increased\nfor ${exercise.title} to ${exercise.weight}${exercise.unit}` :
        "It looks like you struggled\non a few sets, your weight will\nstay the same";
  const action = "Move straight on to the next exercise";

  clearScreen();
  g.setColor(WHITE);
  g.setFont("Vector", 20);
  g.drawString(title, centerStringX(title), 10);
  g.setFont("Vector", 10);
  g.drawString(msg, centerStringX(msg), 180);
  g.drawString(action, centerStringX(action), 210);
  drawMenu({showBTN2: true});

  clearWatch();
  setWatch(() => {
    init(program);
  }, BTN2, {repeat: false});
}
*/

function drawRestTimer(program) {
  const exercise = program.currentExercise();
  const motivation = "Take a breather..";
  clearScreen();
  drawMenu({showBTN2: true});

  g.setColor(PINK);
  g.fillCircle(W / 2, H / 2, 50);
  g.setColor(WHITE);
  g.setFont("Vector", 15);
  g.drawString(motivation, centerStringX(motivation), 25);
  g.setFont("Vector", 40);
  g.drawString(exercise.restPeriod, centerStringX(exercise.restPeriod), (H - 45) / 2);
  exercise.decRestPeriod();

  if (exercise.restPeriod <= 0) {
    exercise.resetRestTimer();
    redraw(program);
  }
}

function redraw(program) {
  const exercise = program.currentExercise();

  clearScreen();

  if (program.isCompleted()) {
    drawProgramCompleted(program);
    return;
  }

  if (exercise.isRestTimerRunning()) {
    if (exercise.isLastSet()) {
      drawStartNextExercise(program);
    } else {
      drawRestTimer(program);
    }

    return;
  }

  drawSetProgress(exercise);
}

function init(program) {
  clearWatch();
  program.next();
}

// Setup training program. This should come from file

// Squats
function buildPrograms() {
  const programsJSON = require("Storage").readJSON("buffgym-programs.json", 1);

  if (!programsJSON) throw "No programs JSON found";

  const programs = [];

  programsJSON.forEach(programJSON => {
    const program = new Program({
      title: programJSON.title,
    });
    const exercises = programJSON.exercises.map(exerciseJSON => {
      const exercise = new Exercise({
        title: exerciseJSON.title,
        weight: exerciseJSON.weight,
        unit: exerciseJSON.unit,
      });
      exerciseJSON.sets.forEach(setJSON => {
        exercise.addSet(new Set(setJSON));
      });

      return exercise;
    });
    program.addExercises(exercises);
    programs.push(program);
  });

  return programs;
}

// For this spike, just run the first program, what will
// really happen is the user picks a program to do from
// some menu on a start page.
init(buildPrograms()[0]);