Started moving project to typescript, fixed a bug when editing subscriptions.

.gitignore

@@ -1,3 +1,3 @@
-# Include your project-specific ignores in this file
+
-# Read about how to use .gitignore: https://help.github.com/articles/ignoring-files
+/.idea/
-# Useful .gitignore templates: https://github.com/github/gitignore
+/node_modules/

.idea/compiler.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="TypeScriptCompiler">
+    <option name="recompileOnChanges" value="true" />
+  </component>
+</project>

.idea/inspectionProfiles/Project_Default.xml

@@ -0,0 +1,6 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="TsLint" enabled="true" level="WARNING" enabled_by_default="true" />
+  </profile>
+</component>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

index.html

@@ -25,8 +25,6 @@
   your browser</a> to improve your experience and security.</p>
 <![endif]-->
 
-<button onclick="scrollToTopOrBottom()" id="myBtn" class="button">Bottom</button>
-
 <div class="columns is-mobile">
   <div class="column is-8 is-offset-2">
     <table class="table is-fullwidth is-bordered is-striped">

js/main.ts

@@ -0,0 +1,640 @@
+interface subscription{
+  title: String,
+  price: number,
+  currency: String,
+  months: number,
+  notes: String,
+  monthly: number,
+  indkk: number,
+  percentOfWhole: number,
+  changed: boolean
+}
+
+interface oldSubscription{
+  title: String,
+  amount: number,
+  currency: String,
+  months: number,
+  notes: String,
+  monthly: number,
+  indkk: number,
+  percentOfWhole: number,
+  changed: boolean
+}
+
+interface oldSave{
+  subscriptions: oldSubscription[],
+  keys: string[], //Currencies symbols
+  values: number[] // Currencies values
+}
+
+interface save{
+  version: number,
+  subscriptions: subscription[],
+  keys: String[], //Currencies symbols
+  values: number[] // Currencies values
+}
+
+// Setup
+let subscriptions: subscription[] = [];
+
+const currencies:Map<String, number> = new Map()
+currencies.set("$", 6.78)
+currencies.set("€", 7.47)
+currencies.set("DKK", 1)
+
+// The name of the data in localStorage
+const localDataName = "subscriptionInformation"
+let localSortPreferenceName = "sortPreference"
+
+// Initial scroll distance to bottom of the page.
+let scrollDistance = getDocHeight()
+
+// Function that top/bottom button calls. Scrolls to top if user has scrolled 50% down, bottom otherwise.
+let scrollToTopOrBottom = () => {
+  window.scrollTo({
+    top: scrollDistance,
+    left: 0,
+    behavior: 'smooth'
+  })
+}
+
+// Gets the height of the page.
+function getDocHeight() {
+  let D = document;
+  return Math.max(
+    D.body.scrollHeight, D.documentElement.scrollHeight,
+    D.body.offsetHeight, D.documentElement.offsetHeight,
+    D.body.clientHeight, D.documentElement.clientHeight
+  )
+}
+
+// Keep track of the window height.
+let winheight = window.innerHeight || (document.documentElement || document.body).clientHeight;
+window.onresize = () => {
+  winheight = window.innerHeight || (document.documentElement || document.body).clientHeight;
+}
+
+// Returns true if valid subscription, false if not.
+let isValidNewSubscription = (subscription): Boolean => {
+
+  // Title of subscription must be unique.
+  if (subscriptions.map((sub) => sub.title).includes(subscription.title)) {
+    alert("Subscription name not unique")
+    return false
+  }
+
+  return isValidSubscription(subscription);
+}
+
+let isValidSubscription = (subscription: subscription): boolean => {
+  if (isNaN(subscription.price)) {
+    alert("Amount is not a number")
+    return false
+  }
+  if (!([...currencies.keys()].includes(subscription.currency))) {
+    alert("Currency is not a valid currency")
+    return false
+  }
+  if (isNaN(subscription.months)) {
+    alert("Months are not a number")
+    return false
+  }
+
+  return true
+}
+
+let createNewSubscription = (title, price, currency, months, notes): subscription => {
+  const newSub: subscription = {
+    changed: false,
+    currency: currency,
+    indkk: 0,
+    monthly: 0,
+    months: months,
+    notes: notes,
+    percentOfWhole: null,
+    price: price,
+    title: title
+  }
+
+  newSub.monthly = newSub.price / newSub.months;
+  newSub.indkk = newSub.monthly * currencies.get(newSub.currency);
+
+  return newSub;
+}
+
+// Create a new subscription
+let newSubscription = () => {
+  // Open the popup
+  // @ts-ignore
+  Swal.fire({
+    title: 'Insert subscription information',
+    html:
+      '<hr class="is-black">' +
+      '<label class="label has-text-left">Title</label> ' +
+      '<input id="swal-input1" class="swal2-input" placeholder="Subscription title" value="">' +
+      '<label class="label has-text-left">Amount</label> ' +
+      '<input id="swal-input2" class="swal2-input" placeholder="Original Amount" value="">' +
+      '<label class="label has-text-left">Currency</label> ' +
+      '<input id="swal-input3" class="swal2-input" placeholder="Original Currency" value="">' +
+      '<label class="label has-text-left">Over how many months</label> ' +
+      '<input id="swal-input4" class="swal2-input" placeholder="Over how many months" value="">' +
+      '<label class="label has-text-left">Other notes</label> ' +
+      '<textarea id="swal-input5" class="textarea" placeholder="Notes" rows="4" cols="4">' + '</textarea>',
+    focusConfirm: false,
+    preConfirm: () => {
+      // Create a new temporary subscription
+
+
+      const title = (<HTMLInputElement>document.getElementById('swal-input1')).value;
+        const price = parseFloat((<HTMLInputElement>document.getElementById('swal-input2')).value)
+      const  currency = (<HTMLInputElement>document.getElementById('swal-input3')).value
+        const months = parseInt((<HTMLInputElement>document.getElementById('swal-input4')).value)
+      const notes = (<HTMLInputElement>document.getElementById('swal-input5')).value
+
+      const newSub = createNewSubscription(title, price, currency, months, notes)
+
+      // Do some form validation
+      let valid = isValidNewSubscription(newSub)
+
+      // Update the table if form was validated successfully
+      if (valid){
+        subscriptions.push(newSub)
+        updateTable()
+      }
+    }
+  })
+}
+
+// Edit a subscription
+let editSubscription = (btn) => {
+  // Find out which subscription we're editing
+  let currentSubscription = getSubscriptionFromButton(btn)
+
+  // Open the popup, and fill in the current subscription information in the form
+  // @ts-ignore
+  Swal.fire({
+    title: 'Insert subscription information',
+    html:
+      '<hr class="is-black">' +
+      '<label class="label has-text-left">Title</label> ' +
+      '<input id="swal-input1" class="swal2-input" placeholder="Subscription title" value="' + currentSubscription.title + '">' +
+      '<label class="label has-text-left">Amount</label> ' +
+      '<input id="swal-input2" class="swal2-input" placeholder="Original Amount" value="' + currentSubscription.price + '">' +
+      '<label class="label has-text-left">Currency</label> ' +
+      '<input id="swal-input3" class="swal2-input" placeholder="Original Currency" value="' + currentSubscription.currency + '">' +
+      '<label class="label has-text-left">Over how many months</label> ' +
+      '<input id="swal-input4" class="swal2-input" placeholder="Over how many months" value="' + currentSubscription.months + '">' +
+      '<label class="label has-text-left">Other notes</label> ' +
+      '<textarea id="swal-input5" class="textarea" placeholder="Notes" rows="4" cols="4">' + currentSubscription.notes + '</textarea>',
+    focusConfirm: false,
+    cancelButtonColor: '#d33',
+    showCancelButton: true,
+    preConfirm: () => {
+      // Create a new temporary subscription
+      const title = (<HTMLInputElement>document.getElementById('swal-input1')).value;
+      const price = parseFloat((<HTMLInputElement>document.getElementById('swal-input2')).value)
+      const currency = (<HTMLInputElement>document.getElementById('swal-input3')).value
+      const months = parseInt((<HTMLInputElement>document.getElementById('swal-input4')).value)
+      const notes = (<HTMLInputElement>document.getElementById('swal-input5')).value
+
+      const editedSub = createNewSubscription(title, price, currency, months, notes)
+
+      let valid: boolean = isValidSubscription(editedSub)
+      console.log(valid)
+
+      if (valid){
+        console.log(editedSub)
+        // Update the table if form was validated successfully
+        deleteSubscription(currentSubscription)
+        subscriptions.push(editedSub)
+        updateTable()
+      }
+    }
+  })
+}
+
+// Add a new currency. Called by the add currency button
+let addCurrency = () => {
+  // Fire popup
+  // @ts-ignore
+  Swal.fire({
+    title: 'Insert currency information',
+    html:
+      '<input id="swal-input1" class="swal2-input" placeholder="Currency Symbol">' +
+      '<input id="swal-input2" class="swal2-input" placeholder="DKK Rate">',
+    focusConfirm: false,
+    preConfirm: () => {
+      // Register the new possible currency
+      let newCurrency = {
+        symbol: (<HTMLInputElement>document.getElementById('swal-input1')).value,
+        rate: parseFloat((<HTMLInputElement>document.getElementById('swal-input2')).value),
+      }
+
+      // Check that the rate is a number
+      if (isNaN(newCurrency.rate)) {
+        alert("DKK exchange rate is now a number")
+        return
+      }
+
+      // Update with the new currency, and refresh the table
+      currencies.set(newCurrency.symbol, newCurrency.rate)
+      updateTable()
+    }
+  })
+}
+
+// Delete all subscriptions.
+let Reset = () => {
+  // @ts-ignore
+  Swal.fire({
+    title: 'Are you sure?',
+    text: "You won't be able to revert this!",
+    icon: 'warning',
+    showCancelButton: true,
+    confirmButtonColor: '#3085d6',
+    cancelButtonColor: '#d33',
+    confirmButtonText: 'Yes, delete it!'
+  }).then((result) => {
+    if (result.value) {
+      subscriptions.length = 0;
+      updateTable()
+      // @ts-ignore
+      Swal.fire(
+        'Reset!',
+        'Your subscriptions have been reset.',
+        'success'
+      )
+    }
+  })
+}
+
+
+// Method for updating the table with new information.
+let updateTable = () => {
+  // Create a new replacement tbody
+  let newTbody = document.createElement('tbody');
+  newTbody.classList.add("tbody")
+
+  // Sort by users preference
+
+  // Add rows from data in memory.
+  populateTable(newTbody)
+
+  // Replace the old tbody with the new cleared one
+  let oldTbody = document.querySelector('.tbody')
+  oldTbody.parentNode.replaceChild(newTbody, oldTbody)
+
+  // Save the new information locally.
+  setStored(localDataName, JSON.stringify(getSaveInfo()))
+}
+
+// Populate a tbody with subscriptions from the subscriptions array.
+let populateTable = (tbody) => {
+  // Store the total cost of all subscriptions
+  let total = subscriptions.map((s) => s.monthly).reduce((acc, sub) => acc + sub)
+
+  // Update tablefoot with total monthly cost and amount of subscriptions.
+  document.querySelector('#total').innerHTML = total.toFixed(2);
+  document.querySelector('#amountOfSubscriptions').innerHTML = subscriptions.length.toString();
+
+  // Begin to create table rows
+  for (let i = 0; i < subscriptions.length; i++) {
+    // Select a subscription on index i, and create a new empty row
+    let elem = subscriptions[i]
+    let tr = document.createElement('tr');
+
+    // Calculate the subscriptions percentage-wise cost of the monthly total.
+    elem.percentOfWhole = elem.indkk / total * 100;
+
+    // If this element has been changed (ie. created, moved), mark it for the user.
+    if (elem.changed) {
+      tr.classList.add("is-selected");
+      elem.changed = false
+    }
+
+    // Create the row.
+    tr.innerHTML = '<td>' + elem.title + '</td>' +
+      '<td>' + elem.monthly.toFixed(2) + '</td>' +
+      '<td>' + elem.currency + '</td>' +
+      '<td>' + elem.indkk.toFixed(2) + '</td>' +
+      '<td>' + elem.percentOfWhole.toFixed(2) + '%</td>' +
+      '<td>' + '<button class="button" onclick="getInfoOfSubscription(this)">Info</button>' + '</td>' +
+      '<td>' + '<button class="button" onclick="askToDeleteRow(this)">Delete</button>' + '</td>' +
+      '<td>' + `<button class="button" onclick="editSubscription(this)">Edit</button>` + '</td>';
+
+    // Append the new row
+    tbody.appendChild(tr);
+  }
+}
+
+// Create a pie-chart with the cost of each subscription
+let PieChart = () => {
+  // Get data ready for CanvasJS.
+  let data = []
+  for (let subscription of subscriptions) {
+    console.log(subscription)
+    data.push({y: subscription.percentOfWhole, label: subscription.title})
+  }
+
+  // Create the chart with CanvasJS.
+  // @ts-ignore
+  let chart = new CanvasJS.Chart("chartContainer", {
+    animationEnabled: true,
+    title: {
+      text: "Monthly Expenses"
+    },
+    data: [{
+      type: "pie",
+      startAngle: 240,
+      yValueFormatString: "##0.00\"%\"",
+      indexLabel: "{label} {y}",
+      dataPoints: data
+    }]
+  });
+
+  // Lastly, render it.
+  chart.render()
+}
+
+// Ask the user what to sort by, and then sorts the array.
+let Sort = async () => {
+
+  // The input options for SWAL2
+  const inputOptions = new Promise((resolve) => {
+    resolve({
+      'Lex': 'Lexi.',
+      'Price': 'Price'
+    })
+  })
+
+  // Fire the popup
+  // @ts-ignore
+  const {value: sortBy} = await Swal.fire({
+    title: 'Sort by what',
+    input: 'radio',
+    inputOptions: inputOptions,
+    inputValidator: (value) => {
+      if (!value) {
+        return 'You need to choose something!'
+      }
+    }
+  })
+
+  // Sort the array, and save the sorting preference
+  if (sortBy) {
+    if (sortBy == "Lex") {
+      setStored(localSortPreferenceName, "Lex")
+      sortSubscriptionsByName()
+      updateTable()
+    } else if (sortBy == "Price") {
+      setStored(localSortPreferenceName, "Price")
+      sortSubscriptionsByPrice()
+      updateTable()
+    }
+  }
+}
+
+// different sorters for subscriptions array
+let sortSubscriptionsByPrice = () => {
+  subscriptions.sort((a, b) => {
+    if (a.indkk > b.indkk) {
+      return -1;
+    }
+    if (b.indkk > a.indkk) {
+      return 1;
+    }
+    return 0;
+  })
+}
+let sortSubscriptionsByName = () => {
+  subscriptions.sort((a, b) => {
+    if (a.title > b.title) {
+      return 1;
+    }
+    if (b.title > a.title) {
+      return -1;
+    }
+    return 0;
+  })
+}
+
+
+// Gets more information on a subscription, and displays it in a popup
+let getInfoOfSubscription = (btn) => {
+  let currentSub = getSubscriptionFromButton(btn)
+  // @ts-ignore
+  Swal.fire(
+    currentSub.title,
+    `${currentSub.price}${currentSub.currency} over ${currentSub.months} months, which equates to <br>
+     ${currentSub.monthly}${currentSub.currency} monthly, or about ${currentSub.indkk} DKK <br> ` +
+    // Display notes only if there are some.
+    (currentSub.notes === undefined ? "" : (
+      `
+     Notes: <br>
+    <div class="control">
+        <textarea class="textarea" disabled>${currentSub.notes}</textarea>
+    </div>
+    `)),
+    'question'
+  )
+}
+
+// Since title is unique, this finds the title of the row from which a button was pressed, and returns that subscription from the subscription array
+let getSubscriptionFromButton = (button) => {
+  let tr = button.parentNode.parentNode
+  let title = tr.firstChild.textContent
+  return subscriptions.filter(s => s.title == title)[0]
+}
+
+let askToDeleteRow = (btn) => {
+  // @ts-ignore
+  Swal.fire({
+    title: 'Are you sure?',
+    text: "You won't be able to revert this!",
+    icon: 'warning',
+    showCancelButton: true,
+    confirmButtonColor: '#3085d6',
+    cancelButtonColor: '#d33',
+    confirmButtonText: 'Yes, delete it!'
+  }).then((result) => {
+    if (result.value) {
+      deleteSubscription(getSubscriptionFromButton(btn))
+      // @ts-ignore
+      Swal.fire(
+        'Deleted!',
+        'Your file has been deleted.',
+        'success'
+      )
+    }
+  })
+}
+
+let deleteSubscription = (subscription) => {
+  const index = subscriptions.map(s => s.title).indexOf(subscription.title);
+  subscriptions.splice(index, 1);
+  updateTable()
+}
+
+// Make subscriptions and currency ready to be stored as JSON
+let getSaveInfo = (): save => {
+  return {version: 1, subscriptions: subscriptions, keys: [...currencies.keys()], values: [...currencies.values()]}
+}
+
+// Parse a save object, and use it as the current info.
+let loadSaveInfo = (loadedSave: save, oldLoadedSave: oldSave) => {
+
+  let actualSaveToUse = loadedSave;
+
+  if (oldLoadedSave !== null){
+    // Old data
+
+    console.log("loading legacy data...")
+
+    const oldData: oldSave = oldLoadedSave;
+
+    let newData: save = {keys: [], subscriptions: [], values: [], version: 0};
+    newData.keys = oldData.keys;
+    newData.version = 1;
+    newData.values = oldData.values;
+
+    for (let sub of oldLoadedSave.subscriptions){
+      const newSub: subscription = createNewSubscription(sub.title, sub.amount, sub.currency, sub.months, sub.notes);
+      newData.subscriptions.push(newSub);
+    }
+
+    actualSaveToUse = newData;
+  }
+
+
+  subscriptions = actualSaveToUse.subscriptions
+
+  currencies.clear()
+  for (let i = 0; i < actualSaveToUse.keys.length; i++) {
+    currencies.set(actualSaveToUse.keys[i], actualSaveToUse.values[i])
+  }
+}
+
+// Save a local JSON version of the current state.
+let saveToFile = () => {
+  var dataStr = "data:text/json;charset=utf-8," + encodeURIComponent(JSON.stringify(getSaveInfo()));
+  var downloadAnchorNode = document.createElement('a');
+  downloadAnchorNode.setAttribute("href", dataStr);
+  downloadAnchorNode.setAttribute("download", "save" + ".json");
+  document.body.appendChild(downloadAnchorNode); // required for firefox
+  downloadAnchorNode.click();
+  downloadAnchorNode.remove();
+}
+
+// Load a local JSON version of some state.
+let load = () => {
+  var input, file, fr;
+
+  if (typeof window.FileReader !== 'function') {
+    alert("The file API isn't supported on this browser yet.");
+    return;
+  }
+
+  input = document.getElementById('fileinput');
+  if (!input) {
+    alert("Um, couldn't find the fileinput element.");
+  } else if (!input.files) {
+    alert("This browser doesn't seem to support the `files` property of file inputs.");
+  } else if (!input.files[0]) {
+    alert("Please select a file before clicking 'Load'");
+  } else {
+    file = input.files[0];
+    fr = new FileReader();
+    fr.onload = receivedText;
+    fr.readAsText(file);
+  }
+
+  function receivedText(e) {
+    let lines = e.target.result;
+    let loadedSave = JSON.parse(lines);
+
+    if (loadedSave.version == null){
+      loadSaveInfo(null, loadedSave)
+    }
+    else{
+      loadSaveInfo(loadedSave, null)
+
+    }
+
+    updateTable()
+  }
+}
+
+// Retrieve the key value pair vname, vvalue
+function getStored(vname) {
+  if (typeof (Storage) !== "undefined") {
+    return localStorage.getItem(vname)
+  } else {
+    return getCookie(vname)
+  }
+}
+
+// Store the key value pair vname, vvalue
+function setStored(vname, vvalue) {
+  if (typeof (Storage) !== "undefined") {
+    return localStorage.setItem(vname, vvalue)
+  } else {
+    return setCookie(vname, vvalue, 1000)
+  }
+}
+
+
+// Fallback if browser doesn't support HTML5 localstorage
+function setCookie(cname, cvalue, exdays) {
+  var d = new Date();
+  d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));
+  var expires = "expires=" + d.toUTCString();
+  document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/";
+}
+
+function getCookie(cname) {
+  var name = cname + "=";
+  var decodedCookie = decodeURIComponent(document.cookie);
+  var ca = decodedCookie.split(';');
+  for (var i = 0; i < ca.length; i++) {
+    var c = ca[i];
+    while (c.charAt(0) == ' ') {
+      c = c.substring(1);
+    }
+    if (c.indexOf(name) == 0) {
+      return c.substring(name.length, c.length);
+    }
+  }
+  return "";
+}
+
+
+// Try to load data from local storage. If this fails, there's probably not any data to retrieve.
+try {
+  let data = JSON.parse(getStored(localDataName));
+
+  if (data.version == null){
+    loadSaveInfo(null, data);
+  }
+  else{
+    loadSaveInfo(data, null)
+  }
+
+  // Find out if we want to sort the array of the users data.
+    let userSortPref = getStored(localSortPreferenceName)
+    if (userSortPref === undefined){
+      sortSubscriptionsByName()
+    }
+    else{
+      if (userSortPref == "Price"){
+        sortSubscriptionsByPrice()
+      }
+      else{
+        sortSubscriptionsByName()
+      }
+    }
+  updateTable()
+} catch (e) {
+  console.log("Didn't find any locally stored data")
+  console.log(e)
+}

tsconfig.json

@@ -0,0 +1,10 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "target": "es2018",
+    "sourceMap": true
+  },
+  "exclude": [
+    "node_modules"
+  ]
+}