script.js

"use strict";

const form = document.querySelector(".form");
const containerWorkouts = document.querySelector(".workouts");
const inputType = document.querySelector(".form__input--type");
const inputDistance = document.querySelector(".form__input--distance");
const inputDuration = document.querySelector(".form__input--duration");
const inputCadence = document.querySelector(".form__input--cadence");
const inputElevation = document.querySelector(".form__input--elevation");
class Workout {
  date = new Date();
  id = (Date.now() + "").slice(-10);

  constructor(coords, distance, duration) {
    this.coords = coords;
    this.distance = distance;
    this.duration = duration;
  }

  _setDescription() {
    // prettier-ignore
    const months = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];

    this.description = `${this.type[0].toUpperCase()}${this.type.slice(1)} on ${
      months[this.date.getMonth()]
    } ${this.date.getDate()}`;
  }
}

class Running extends Workout {
  type = "running";

  constructor(coords, distance, duration, cadence) {
    super(coords, distance, duration);
    this.cadence = cadence;
    this.calcPace();
    this._setDescription();
  }

  calcPace() {
    this.pace = this.distance / this.duration;
    return this.speed;
  }
}
class Cycling extends Workout {
  type = "cycling";

  constructor(coords, distance, duration, elevationGain) {
    super(coords, distance, duration);
    this.elevationGain = elevationGain;
    this.calcSpeed();
    this._setDescription();
  }

  calcSpeed() {
    this.speed = this.distance / this.duration;
    return this.speed;
  }
}
class App {
  #map;
  #mapEvent;
  #workouts = [];
  #mapZoomLevel = 13;

  constructor() {
    // Get user's position
    this._getPosition();

    // Get data from local storage
    this._getLocalStorage();

    form.addEventListener("submit", this._newWorkout.bind(this));
    inputType.addEventListener("change", this._toggleElevationFiled);
    containerWorkouts.addEventListener("click", this._moveToPopup.bind(this));
  }

  _getPosition() {
    if (navigator.geolocation)
      navigator.geolocation.getCurrentPosition(
        this._loadMap.bind(this),
        function () {
          alert("Could not grt your Coordinates");
        }
      );
  }

  _loadMap(position) {
    const { latitude } = position.coords;
    const { longitude } = position.coords;

    const coords = [latitude, longitude];
    this.#map = L.map("map").setView(coords, 13);

    L.tileLayer("https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png", {
      attribution:
        '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors',
    }).addTo(this.#map);

    this.#map.on("click", this._showForm.bind(this));

    this.#workouts.forEach((work) => {
      this._renderWorkoutMarker(work);
    });
  }

  _showForm(mapE) {
    this.#mapEvent = mapE;
    form.classList.remove("hidden");
    inputDistance.focus();
  }

  _hideForm() {
    // Empty inputs
    inputDistance.value =
      inputDuration.value =
      inputCadence.value =
      inputElevation.value =
        "";

    form.style.display = "none";
    form.classList.add("hidden");
    setTimeout(() => (form.style.display = "grid"), 1000);
  }

  _toggleElevationFiled() {
    inputCadence.closest(".form__row").classList.toggle("form__row--hidden");
    inputElevation.closest(".form__row").classList.toggle("form__row--hidden");
  }

  _newWorkout(e) {
    e.preventDefault();

    //INPUT VALIDATIONS
    const validInputs = (...inputs) =>
      inputs.every((inp) => Number.isFinite(inp));
    const allPositive = (...inputs) => inputs.every((inp) => inp > 0);

    //GET DATA FROM FORM
    const type = inputType.value;
    const distance = +inputDistance.value;
    const duration = +inputDuration.value;
    const { lat, lng } = this.#mapEvent.latlng;
    let workout;

    if (type === "running") {
      const cadence = +inputCadence.value;
      if (
        !validInputs(distance, duration, cadence) ||
        !allPositive(distance, duration, cadence)
      )
        return alert("Inputs have to be positive numbers!");

      workout = new Running([lat, lng], distance, duration, cadence);
    }

    if (type === "cycling") {
      const elevationGain = +inputElevation.value;
      if (
        !validInputs(distance, duration, elevationGain) ||
        !allPositive(distance, duration)
      )
        return alert("Inputs have to be positive numbers!");

      workout = new Cycling([lat, lng], distance, duration, elevationGain);
    }

    this.#workouts.push(workout);

    this._renderWorkoutMarker(workout);

    this._renderWorkout(workout);

    this._hideForm();

    this._setLocalStorage();
  }

  _renderWorkoutMarker(workout) {
    L.marker(workout.coords)
      .addTo(this.#map)
      .bindPopup(
        L.popup({
          maxHeight: 250,
          minWidth: 100,
          autoClose: false,
          closeOnClick: false,
          className: `${workout.type}-popup`,
        })
      )
      .setPopupContent(
        `${workout.type === "running" ? "🏃‍♂️" : "🚴‍♀️"} ${workout.description}`
      )
      .openPopup();
  }

  _renderWorkout(workout) {
    let html = `
      <li class="workout workout--${workout.type}" data-id="${workout.id}">
        <h2 class="workout__title">${workout.description}</h2>
        <div class="workout__details">
          <span class="workout__icon">${
            workout.type === "running" ? "🏃‍♂️" : "🚴‍♀️"
          }</span>
          <span class="workout__value">${workout.distance}</span>
          <span class="workout__unit">km</span>
        </div>
        <div class="workout__details">
          <span class="workout__icon">⏱</span>
          <span class="workout__value">${workout.duration}</span>
          <span class="workout__unit">min</span>
        </div>
    `;

    if (workout.type === "running")
      html += `
        <div class="workout__details">
          <span class="workout__icon">⚡️</span>
          <span class="workout__value">${workout.pace.toFixed(1)}</span>
          <span class="workout__unit">min/km</span>
        </div>
        <div class="workout__details">
          <span class="workout__icon">🦶🏼</span>
          <span class="workout__value">${workout.cadence}</span>
          <span class="workout__unit">spm</span>
        </div>
      </li>
      `;

    if (workout.type === "cycling")
      html += `
        <div class="workout__details">
          <span class="workout__icon">⚡️</span>
          <span class="workout__value">${workout.speed.toFixed(1)}</span>
          <span class="workout__unit">km/h</span>
        </div>
        <div class="workout__details">
          <span class="workout__icon">⛰</span>
          <span class="workout__value">${workout.elevationGain}</span>
          <span class="workout__unit">m</span>
        </div>
      </li>
      `;

    form.insertAdjacentHTML("afterend", html);
  }

  _moveToPopup(e) {
    // BUGFIX: When we click on a workout before the map has loaded, we get an error. But there is an easy fix:
    if (!this.#map) return;

    const workoutEl = e.target.closest(".workout");

    if (!workoutEl) return;

    const workout = this.#workouts.find(
      (work) => work.id === workoutEl.dataset.id
    );

    this.#map.setView(workout.coords, this.#mapZoomLevel, {
      animate: true,
      pan: {
        duration: 1,
      },
    });
  }

  _setLocalStorage() {
    localStorage.setItem("workouts", JSON.stringify(this.#workouts));
  }

  _getLocalStorage() {
    const data = JSON.parse(localStorage.getItem("workouts"));

    if (!data) return;

    this.#workouts = data;

    this.#workouts.forEach((work) => {
      this._renderWorkout(work);
    });
  }

  reset() {
    localStorage.removeItem("workouts");
    location.reload();
  }
}

const app = new App();