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index.js
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index.js
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(function () {
var ProductLibrary = {
template: '<div class="row"><div class="col image">' +
'<div class="prod-icon" style="background-image:url({0})"></div>' +
'</div>' +
'<div class="col name">{1}</div>' +
'<div class="col price">{2}</div>' +
'<div class="col edit">' +
'<div class="edit-btn" data-id="{3}"></div>' +
'</div></div>',
init: function () {
var header = document.querySelector('.header')
var content = document.querySelector('.content')
var lightBox = document.querySelector('.light-box')
var rowTitle = content.querySelector('.row.title')
var productList = content.querySelector('.list')
// Save the selector
this.lightBox = lightBox
this.form = lightBox.querySelector('.form')
this.productListEl = productList
// Event listener binding
header.querySelector('.create.btn').addEventListener('click', this.createBtnHandler)
header.querySelector('.search').addEventListener('input', this.searchHandler)
rowTitle.addEventListener('click', this.titleClickHandler)
lightBox.addEventListener('click', this.lightBoxClickHandler)
lightBox.querySelector('.confirm.btn').addEventListener('click', this.confirmButtonClickHandler)
lightBox.querySelector('.delete.btn').addEventListener('click', this.deleteButtonClickHandler)
productList.addEventListener('click', this.productListElClickHandler)
this.draw()
},
draw: function (data) {
data = data || this.getData()
this.productListEl.innerHTML = this.buildTemplate(data)
return this
},
createBtnHandler: function (e) {
ProductLibrary.fillForm().lightBoxClickHandler(e)
},
searchHandler: function (e) {
var query = e.target.value.toLowerCase()
var data
if (query) {
data = ProductLibrary.getData().filter(function (d) {
// Search by name or price
return d.name.toLowerCase().indexOf(query) >= 0 ||
d.price.toString().toLowerCase().indexOf(query) >= 0
})
}
ProductLibrary.draw(data)
},
titleClickHandler: function (e) {
var sortKey
var order
var classList = e.target.classList
if (classList.contains('name')) {
sortKey = 'name'
} else if (classList.contains('price')) {
sortKey = 'price'
}
if (classList.contains('ASC')) {
// descending
classList.remove('ASC')
classList.add('DESC')
order = 'DESC'
} else if (classList.contains('DESC')) {
classList.remove('DESC')
} else {
// ascending
classList.add('ASC')
order = 'ASC'
}
if (sortKey) {
ProductLibrary.sortDataHandler(sortKey, order)
}
},
lightBoxClickHandler: function (e) {
var targetList = ['create btn', 'light-box', 'confirm btn', 'delete btn', 'edit-btn']
if (targetList.indexOf(e.target.className) >= 0) {
document.body.classList.toggle('show-lightbox')
// Stop bubling
e.stopPropagation()
}
return this
},
productListElClickHandler: function (e) {
if (e.target.className === 'edit-btn') {
var id = e.target.getAttribute('data-id')
var data = ProductLibrary.getData(id)[0]
ProductLibrary.fillForm(data).lightBoxClickHandler(e)
}
return this
},
confirmButtonClickHandler: function (e) {
var helper = function (id) {
return ProductLibrary.form.querySelector(id).value
}
var reg = new RegExp(/^\d+$/)
var name = helper('input[name="prodName"]')
var price = helper('input[name="prodPrice"]')
if (!name) {
window.alert('Product Name invalid')
return
}
if (!reg.test(price)) {
window.alert('Price invalid')
return
}
if (parseInt(price, 10) < 0) {
window.alert('Price must be greater than or equal 0')
return
}
ProductLibrary.updateData({
_id: ProductLibrary.form.getAttribute('data-id'),
image: helper('input[name="prodImgUrl"]'),
name: name,
price: price
})
ProductLibrary.draw().lightBoxClickHandler(e)
},
deleteButtonClickHandler: function (e) {
var id = ProductLibrary.form.getAttribute('data-id')
ProductLibrary.deleteData(id).draw()
},
fillForm: function (data) {
var timeStamp = (new Date()).getTime().toString()
data = data || {}
ProductLibrary.form.querySelector('input[name="prodImgUrl"]').value = data.image || './cupcake.png'
ProductLibrary.form.querySelector('input[name="prodName"]').value = data.name || ''
ProductLibrary.form.querySelector('input[name="prodPrice"]').value = data.price || ''
ProductLibrary.form.setAttribute('data-id', data._id || timeStamp)
return this
},
sortDataHandler: function (key, order) {
// default order
if (!order) {
this.draw()
} else {
var productList = this.getData()
productList.sort(function (a, b) {
if (key === 'name') {
return a[key].localeCompare(b[key])
} else {
if (order === 'ASC') {
return a[key] - b[key]
} else {
return b[key] - a[key]
}
}
})
this.draw(productList)
}
},
buildTemplate: function (productList) {
var html = ''
var template = this.template
productList.forEach(function (product) {
html += template.format(product.image, product.name, product.price, product._id)
})
return html
},
getData: function (id) {
var productList = window.localStorage.getItem('productList')
productList = productList ? JSON.parse(productList) : []
if (id) {
return productList.filter(function (product) {
return product._id === id
})
} else {
return productList
}
},
updateData: function (newData) {
var productList = this.getData()
var found
for (var i = 0; i < productList.length; i++) {
if (!found && productList[i]._id === newData._id) {
productList[i] = newData
found = true
break
}
}
// If not found, then push it
if (!found) {
productList.push(newData)
}
window.localStorage.setItem('productList', JSON.stringify(productList))
return this
},
deleteData: function (id) {
var productList = this.getData()
productList = productList.filter(function (product) {
return product._id !== id
})
window.localStorage.setItem('productList', JSON.stringify(productList))
return this
}
}
// String formater
if (!String.prototype.format) {
String.prototype.format = function () {
var args = arguments
return this.replace(/{(\d+)}/g, function (match, number) {
return typeof args[number] !== 'undefined' ? args[number] : match
})
}
}
ProductLibrary.init()
})()