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// We want to generate many "instances" of our templates
// so being able to generate a random ID that will not collide
// with other generated ids is very helpful
function getRandomId(prefix) {
return `${prefix}-${Math.round(Date.now() * Math.random())}`
}
// Create many of our gridItem template
// and insert them into our gridContainer
// template. We return the template as one big string
// and return an array of ids for the gridItems such
// that we can query them later
function makeGrid() {
let gridItems = []
let gridIds = []
for (let i = 1; i <= 365; i++) {
let id = getRandomId('grid-item')
gridIds.push(id)
gridItems.push(Templates.gridItem(false, id))
}
let gridTemplate = Templates.gridContainer(gridItems.join(''))
return {
template: gridTemplate,
ids: gridIds
}
}
// Create an "instance" of our form template.
// id of the form doesn't matter, but id of the
// input is very important
function makeForm(value) {
let id = 'motivation-form'
let template = Templates.form(
'What are you working on?',
getRandomId(''),
id,
value
)
return { template, id }
}
// Bind a callback to each DOM node
// identified by one of the elements of ids
function bindGridClickHandlers(ids) {
for (let id of ids) {
let gridItem = document.getElementById(id)
gridItem.addEventListener('click', function() {
// This css class "highlights" the grid item
// so we want to toggle it when the user clicks
gridItem.classList.toggle('grid-item__highlighted')
})
}
}
// Helper function to mount content to
// the root node (wrapped in our container)
function mount(rootNode, content) {
rootNode.innerHTML = Templates.container(content)
}
// Helper function to mount our grid
// and bind callbacks to our gridItems
function mountGrid(rootNode, content, gridIds) {
mount(rootNode, content)
bindGridClickHandlers(gridIds)
}
window.onload = function() {
// Get our root node
let rootNode = document.getElementById('root')
// Make our templates
let grid = makeGrid()
let form = makeForm()
// Mount just the form
mount(rootNode, form.template)
let formNode = document.getElementById(form.id)
formNode.addEventListener('keydown', function(event) {
// When the user presses enter in the form
// mount the grid below the form
if (event.key == 'Enter') {
// Our old form template did not contain
// the users value, so we re-make it, and pass
// in the user input (grabbed from the formNodes value)
form = makeForm(formNode.value)
mountGrid(rootNode, form.template + grid.template, grid.ids)
}
})
}
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