fix: rename appointment booking route (#19886)

* rename appoinment booking route

* fix: replace all references to book-appointment route
diff --git a/erpnext/www/book_appointment/__init__.py b/erpnext/www/book_appointment/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/erpnext/www/book_appointment/__init__.py
diff --git a/erpnext/www/book_appointment/index.css b/erpnext/www/book_appointment/index.css
new file mode 100644
index 0000000..6c49fde
--- /dev/null
+++ b/erpnext/www/book_appointment/index.css
@@ -0,0 +1,53 @@
+.time-slot {
+    margin-bottom: 2em;
+    margin-left: 0.5em;
+    margin-right: 0.5em;
+    border-radius: 0.4em;
+    cursor: pointer;
+    border: 0.5px solid #cccccc;
+    min-height: 75px;
+    padding: 0.5em 1em;
+}
+
+@media (max-width: 768px) {
+    #submit-button-area {
+        display: grid;
+        grid-template-areas: 
+        "submit"
+        "back";
+    }
+}
+#customer-form{
+    border-color: black;
+}
+#customer-form ::placeholder{
+    color: #ddd;
+}
+#timeslot-container{
+	display: flex;
+    flex-wrap: wrap;
+    justify-content: center;
+}
+
+.time-slot:hover {
+    background: #ddd;
+}
+
+.time-slot.unavailable {
+    background: #CBD5E0;
+    cursor: not-allowed;
+    color: #718096
+}
+
+.time-slot.unavailable .text-muted {
+    color: #718096
+}
+
+.time-slot.selected {
+    color: white;
+    background: #5e64ff;
+}
+
+.time-slot.selected .text-muted {
+    color: #EDF2F7 !important;
+}
diff --git a/erpnext/www/book_appointment/index.html b/erpnext/www/book_appointment/index.html
new file mode 100644
index 0000000..f242f43
--- /dev/null
+++ b/erpnext/www/book_appointment/index.html
@@ -0,0 +1,66 @@
+{% extends "templates/web.html" %}
+
+{% block title %}{{ _("Book Appointment") }}{% endblock %}
+
+{% block script %}
+<script src="assets/js/moment-bundle.min.js"></script>
+<script src="book_appointment/index.js"></script>
+{% endblock %}
+
+{% block page_content %}
+<div class="container">
+    <!-- title: Book an appointment -->
+    <div id="select-date-time">
+        <div class="text-center mt-5">
+            <h3>Book an appointment</h3>
+            <p class="lead text-muted" id="lead-text">Select the date and your timezone</p>
+        </div>
+        <div class="row justify-content-center mt-3">
+            <div class="col-md-6 align-self-center ">
+                <div class="row">
+                    <input type="date" oninput="on_date_or_timezone_select()" name="appointment-date"
+                        id="appointment-date" class="form-control mt-3 col-md m-3">
+                    <select name="appointment-timezone" oninput="on_date_or_timezone_select()" id="appointment-timezone"
+                        class="form-control m-3 col-md">
+                    </select>
+                </div>
+            </div>
+        </div>
+        <div class="mt-3" id="timeslot-container">
+
+        </div>
+        <div class="row justify-content-center mt-3">
+            <div class="col-md-4 mb-3">
+                <button class="btn btn-primary form-control" id="next-button">Next</button>
+            </div>
+        </div>
+    </div>
+</div>
+<!--Enter Details-->
+<div id="enter-details" class="mb-5">
+    <div class="text-center mt-5">
+        <h3>Add details</h3>
+        <p class="lead text-muted">Selected date is <span class="date-span"></span> at <span class="time-span">
+            </span></p>
+    </div>
+    <div class="row justify-content-center mt-3">
+        <div class="col-md-4 align-items-center">
+            <form id="customer-form" action='#'>
+            <input class="form-control mt-3" type="text" name="customer_name" id="customer_name" placeholder="Your Name (required)" required>
+            <input class="form-control mt-3" type="tel" name="customer_number" id="customer_number" placeholder="+910000000000">
+            <input class="form-control mt-3" type="text" name="customer_skype" id="customer_skype" placeholder="Skype">
+            <input class="form-control mt-3"type="email" name="customer_email" id="customer_email" placeholder="Email Address (required)" required>
+
+            <textarea class="form-control mt-3" name="customer_notes" id="customer_notes" cols="30" rows="10"
+                placeholder="Notes"></textarea>
+            </form>
+            <div class="row mt-3 " id="submit-button-area">
+                <div class="col-md mt-3" style="grid-area: back;"><button class="btn btn-dark form-control" onclick="initialise_select_date()">Go back</button></div>
+                <div class="col-md mt-3" style="grid-area: submit;"><button class="btn btn-primary form-control " onclick="submit()" id="submit-button">Submit</button></div>
+            </div>
+        </div>
+    </div>
+</div>
+</div>
+
+{% endblock %}
\ No newline at end of file
diff --git a/erpnext/www/book_appointment/index.js b/erpnext/www/book_appointment/index.js
new file mode 100644
index 0000000..c8dd501
--- /dev/null
+++ b/erpnext/www/book_appointment/index.js
@@ -0,0 +1,236 @@
+frappe.ready(async () => {
+    initialise_select_date();
+})
+
+window.holiday_list = [];
+
+async function initialise_select_date() {
+    navigate_to_page(1);
+    await get_global_variables();
+    setup_date_picker();
+    setup_timezone_selector();
+    hide_next_button();
+}
+
+async function get_global_variables() {
+    // Using await through this file instead of then.
+    window.appointment_settings = (await frappe.call({
+        method: 'erpnext.www.book_appointment.index.get_appointment_settings'
+    })).message;
+    window.timezones = (await frappe.call({
+        method:'erpnext.www.book_appointment.index.get_timezones'
+    })).message;
+    window.holiday_list = window.appointment_settings.holiday_list;
+}
+
+function setup_timezone_selector() {
+    /**
+     * window.timezones is a dictionary with the following structure
+     * { IANA name: Pretty name}
+     * For example : { Asia/Kolkata : "India Time - Asia/Kolkata"}
+     */
+    let timezones_element = document.getElementById('appointment-timezone');
+    let offset = new Date().getTimezoneOffset();
+    Object.keys(window.timezones).forEach((timezone) => {
+        let opt = document.createElement('option');
+        opt.value = timezone;
+        if (timezone == moment.tz.guess()) {
+            opt.selected = true;
+        }
+        opt.innerHTML = window.timezones[timezone]
+        timezones_element.appendChild(opt)
+    });
+}
+
+function setup_date_picker() {
+    let date_picker = document.getElementById('appointment-date');
+    let today = new Date();
+    date_picker.min = today.toISOString().substr(0, 10);
+    today.setDate(today.getDate() + window.appointment_settings.advance_booking_days);
+    date_picker.max = today.toISOString().substr(0, 10);
+}
+
+function hide_next_button() {
+    let next_button = document.getElementById('next-button');
+    next_button.disabled = true;
+    next_button.onclick = () => frappe.msgprint("Please select a date and time");
+}
+
+function show_next_button() {
+    let next_button = document.getElementById('next-button');
+    next_button.disabled = false;
+    next_button.onclick = setup_details_page;
+}
+
+function on_date_or_timezone_select() {
+    let date_picker = document.getElementById('appointment-date');
+    let timezone = document.getElementById('appointment-timezone');
+    if (date_picker.value === '') {
+        clear_time_slots();
+        hide_next_button();
+        frappe.throw('Please select a date');
+    }
+    window.selected_date = date_picker.value;
+    window.selected_timezone = timezone.value;
+    update_time_slots(date_picker.value, timezone.value);
+    let lead_text = document.getElementById('lead-text');
+    lead_text.innerHTML = "Select Time"
+}
+
+async function get_time_slots(date, timezone) {
+    let slots = (await frappe.call({
+        method: 'erpnext.www.book_appointment.index.get_appointment_slots',
+        args: {
+            date: date,
+            timezone: timezone
+        }
+    })).message;
+    return slots;
+}
+
+async function update_time_slots(selected_date, selected_timezone) {
+    let timeslot_container = document.getElementById('timeslot-container');
+    window.slots = await get_time_slots(selected_date, selected_timezone);
+    clear_time_slots();
+    if (window.slots.length <= 0) {
+        let message_div = document.createElement('p');
+        message_div.innerHTML = "There are no slots available on this date";
+        timeslot_container.appendChild(message_div);
+        return
+    }
+    window.slots.forEach((slot, index) => {
+        // Get and append timeslot div
+        let timeslot_div = get_timeslot_div_layout(slot)
+        timeslot_container.appendChild(timeslot_div);
+    });
+    set_default_timeslot();
+}
+
+function get_timeslot_div_layout(timeslot) {
+    let start_time = new Date(timeslot.time)
+    let timeslot_div = document.createElement('div');
+    timeslot_div.classList.add('time-slot');
+    if (!timeslot.availability) {
+        timeslot_div.classList.add('unavailable')
+    }
+    timeslot_div.innerHTML = get_slot_layout(start_time);
+    timeslot_div.id = timeslot.time.substr(11, 20);
+    timeslot_div.addEventListener('click', select_time);
+    return timeslot_div
+}
+
+function clear_time_slots() {
+    // Clear any existing divs in timeslot container
+    let timeslot_container = document.getElementById('timeslot-container');
+    while (timeslot_container.firstChild) {
+        timeslot_container.removeChild(timeslot_container.firstChild);
+    }
+}
+
+function get_slot_layout(time) {
+    let timezone = document.getElementById("appointment-timezone").value;
+    time = new Date(time);
+    let start_time_string = moment(time).tz(timezone).format("LT");
+    let end_time = moment(time).tz(timezone).add(window.appointment_settings.appointment_duration, 'minutes');
+    let end_time_string = end_time.format("LT");
+    return `<span style="font-size: 1.2em;">${start_time_string}</span><br><span class="text-muted small">to ${end_time_string}</span>`;
+}
+
+function select_time() {
+    if (this.classList.contains('unavailable')) {
+        return;
+    }
+    let selected_element = document.getElementsByClassName('selected');
+    if (!(selected_element.length > 0)) {
+        this.classList.add('selected');
+        show_next_button();
+        return;
+    }
+    selected_element = selected_element[0]
+    window.selected_time = this.id;
+    selected_element.classList.remove('selected');
+    this.classList.add('selected');
+    show_next_button();
+}
+
+function set_default_timeslot() {
+    let timeslots = document.getElementsByClassName('time-slot')
+    // Can't use a forEach here since, we need to break the loop after a timeslot is selected
+    for (let i = 0; i < timeslots.length; i++) {
+        const timeslot = timeslots[i];
+        if (!timeslot.classList.contains('unavailable')) {
+            timeslot.classList.add('selected');
+            break;
+        }
+    }
+}
+
+function navigate_to_page(page_number) {
+    let page1 = document.getElementById('select-date-time');
+    let page2 = document.getElementById('enter-details');
+    switch (page_number) {
+        case 1:
+            page1.style.display = 'block';
+            page2.style.display = 'none';
+            break;
+        case 2:
+            page1.style.display = 'none';
+            page2.style.display = 'block';
+            break;
+        default:
+            break;
+    }
+}
+
+function setup_details_page() {
+    navigate_to_page(2)
+    let date_container = document.getElementsByClassName('date-span')[0];
+    let time_container = document.getElementsByClassName('time-span')[0];
+    date_container.innerHTML = moment(window.selected_date).format("MMM Do YYYY");
+    time_container.innerHTML = moment(window.selected_time, "HH:mm:ss").format("LT");
+}
+
+async function submit() {
+    let button = document.getElementById('submit-button');
+    button.disabled = true;
+    let form = document.querySelector('#customer-form');
+    if (!form.checkValidity()) {
+        form.reportValidity();
+        button.disabled = false;
+        return;
+    }
+    let contact = get_form_data();
+    let appointment =  frappe.call({
+        method: 'erpnext.www.book_appointment.index.create_appointment',
+        args: {
+            'date': window.selected_date,
+            'time': window.selected_time,
+            'contact': contact,
+            'tz':window.selected_timezone
+        },
+        callback: (response)=>{
+            if (response.message.status == "Unverified") {
+                frappe.show_alert("Please check your email to confirm the appointment")
+            } else {
+                frappe.show_alert("Appointment Created Successfully");
+            }
+            setTimeout(()=>{
+                let redirect_url = "/";
+                if (window.appointment_settings.success_redirect_url){
+                    redirect_url += window.appointment_settings.success_redirect_url;
+                }
+                window.location.href = redirect_url;},5000)
+        },
+        error: (err)=>{
+            frappe.show_alert("Something went wrong please try again");
+            button.disabled = false;
+        }
+    });
+}
+
+function get_form_data() {
+    contact = {};
+    let inputs = ['name', 'skype', 'number', 'notes', 'email'];
+    inputs.forEach((id) => contact[id] = document.getElementById(`customer_${id}`).value)
+    return contact
+}
diff --git a/erpnext/www/book_appointment/index.py b/erpnext/www/book_appointment/index.py
new file mode 100644
index 0000000..5b60dd5
--- /dev/null
+++ b/erpnext/www/book_appointment/index.py
@@ -0,0 +1,159 @@
+import frappe
+import datetime
+import json
+import pytz
+
+
+WEEKDAYS = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"]
+
+no_cache = 1
+
+
+def get_context(context):
+	is_enabled = frappe.db.get_single_value('Appointment Booking Settings', 'enable_scheduling')
+	if is_enabled:
+		return context
+	else:
+		frappe.local.flags.redirect_location = '/404'
+		raise frappe.Redirect
+
+@frappe.whitelist(allow_guest=True)
+def get_appointment_settings():
+	settings = frappe.get_doc('Appointment Booking Settings')
+	settings.holiday_list = frappe.get_doc('Holiday List', settings.holiday_list)
+	return settings
+
+@frappe.whitelist(allow_guest=True)
+def get_timezones():
+	from babel.dates import get_timezone, get_timezone_name, Locale
+	from frappe.utils.momentjs import get_all_timezones
+
+	translated_dict = {}
+	locale = Locale.parse(frappe.local.lang, sep="-")
+
+	for tz in get_all_timezones():
+		timezone_name = get_timezone_name(get_timezone(tz), locale=locale, width='short')
+		if timezone_name:
+			translated_dict[tz] = timezone_name + ' - ' + tz
+
+	return translated_dict
+
+@frappe.whitelist(allow_guest=True)
+def get_appointment_slots(date, timezone):
+	# Convert query to local timezones
+	format_string = '%Y-%m-%d %H:%M:%S'
+	query_start_time = datetime.datetime.strptime(date + ' 00:00:00', format_string)
+	query_end_time = datetime.datetime.strptime(date + ' 23:59:59', format_string)
+	query_start_time = convert_to_system_timezone(timezone, query_start_time)
+	query_end_time = convert_to_system_timezone(timezone, query_end_time)
+	now = convert_to_guest_timezone(timezone, datetime.datetime.now())
+
+	# Database queries
+	settings = frappe.get_doc('Appointment Booking Settings')
+	holiday_list = frappe.get_doc('Holiday List', settings.holiday_list)
+	timeslots = get_available_slots_between(query_start_time, query_end_time, settings)
+
+	# Filter and convert timeslots
+	converted_timeslots = []
+	for timeslot in timeslots:
+		converted_timeslot = convert_to_guest_timezone(timezone, timeslot)
+		# Check if holiday
+		if _is_holiday(converted_timeslot.date(), holiday_list):
+			converted_timeslots.append(dict(time=converted_timeslot, availability=False))
+			continue
+		# Check availability
+		if check_availabilty(timeslot, settings) and converted_timeslot >= now:
+			converted_timeslots.append(dict(time=converted_timeslot, availability=True))
+		else:
+			converted_timeslots.append(dict(time=converted_timeslot, availability=False))
+	date_required = datetime.datetime.strptime(date + ' 00:00:00', format_string).date()
+	converted_timeslots = filter_timeslots(date_required, converted_timeslots)
+	return converted_timeslots
+
+def get_available_slots_between(query_start_time, query_end_time, settings):
+	records = _get_records(query_start_time, query_end_time, settings)
+	timeslots = []
+	appointment_duration = datetime.timedelta(
+		minutes=settings.appointment_duration)
+	for record in records:
+		if record.day_of_week == WEEKDAYS[query_start_time.weekday()]:
+			current_time = _deltatime_to_datetime(query_start_time, record.from_time)
+			end_time = _deltatime_to_datetime(query_start_time, record.to_time)
+		else:
+			current_time = _deltatime_to_datetime(query_end_time, record.from_time)
+			end_time = _deltatime_to_datetime(query_end_time, record.to_time)
+		while current_time + appointment_duration <= end_time:
+			timeslots.append(current_time)
+			current_time += appointment_duration
+	return timeslots
+
+
+@frappe.whitelist(allow_guest=True)
+def create_appointment(date, time, tz, contact):
+	format_string = '%Y-%m-%d %H:%M:%S%z'
+	scheduled_time = datetime.datetime.strptime(date + " " + time, format_string)
+	# Strip tzinfo from datetime objects since it's handled by the doctype
+	scheduled_time = scheduled_time.replace(tzinfo = None)
+	scheduled_time = convert_to_system_timezone(tz, scheduled_time)
+	scheduled_time = scheduled_time.replace(tzinfo = None)
+	# Create a appointment document from form
+	appointment = frappe.new_doc('Appointment')
+	appointment.scheduled_time = scheduled_time
+	contact = json.loads(contact)
+	appointment.customer_name = contact.get('name', None)
+	appointment.customer_phone_number = contact.get('number', None)
+	appointment.customer_skype = contact.get('skype', None)
+	appointment.customer_details = contact.get('notes', None)
+	appointment.customer_email = contact.get('email', None)
+	appointment.status = 'Open'
+	appointment.insert()
+	return appointment
+
+# Helper Functions
+def filter_timeslots(date, timeslots):
+	filtered_timeslots = []
+	for timeslot in timeslots:
+		if(timeslot['time'].date() == date):
+			filtered_timeslots.append(timeslot)
+	return filtered_timeslots
+
+def convert_to_guest_timezone(guest_tz, datetimeobject):
+	guest_tz = pytz.timezone(guest_tz)
+	local_timezone = pytz.timezone(frappe.utils.get_time_zone())
+	datetimeobject = local_timezone.localize(datetimeobject)
+	datetimeobject = datetimeobject.astimezone(guest_tz)
+	return datetimeobject
+
+def convert_to_system_timezone(guest_tz,datetimeobject):
+	guest_tz = pytz.timezone(guest_tz)
+	datetimeobject = guest_tz.localize(datetimeobject)
+	system_tz = pytz.timezone(frappe.utils.get_time_zone())
+	datetimeobject = datetimeobject.astimezone(system_tz)
+	return datetimeobject
+
+def check_availabilty(timeslot, settings):
+	return frappe.db.count('Appointment', {'scheduled_time': timeslot}) < settings.number_of_agents
+
+def _is_holiday(date, holiday_list):
+	for holiday in holiday_list.holidays:
+		if holiday.holiday_date == date:
+			return True
+	return False
+
+
+def _get_records(start_time, end_time, settings):
+	records = []
+	for record in settings.availability_of_slots:
+		if record.day_of_week == WEEKDAYS[start_time.weekday()] or record.day_of_week == WEEKDAYS[end_time.weekday()]:
+			records.append(record)
+	return records
+
+
+def _deltatime_to_datetime(date, deltatime):
+	time = (datetime.datetime.min + deltatime).time()
+	return datetime.datetime.combine(date.date(), time)
+
+
+def _datetime_to_deltatime(date_time):
+	midnight = datetime.datetime.combine(date_time.date(), datetime.time.min)
+	return (date_time-midnight)
\ No newline at end of file
diff --git a/erpnext/www/book_appointment/verify/__init__.py b/erpnext/www/book_appointment/verify/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/erpnext/www/book_appointment/verify/__init__.py
diff --git a/erpnext/www/book_appointment/verify/index.html b/erpnext/www/book_appointment/verify/index.html
new file mode 100644
index 0000000..ebb65b1
--- /dev/null
+++ b/erpnext/www/book_appointment/verify/index.html
@@ -0,0 +1,18 @@
+{% extends "templates/web.html" %}
+
+{% block title %}
+{{ _("Verify Email") }}
+{% endblock%}
+    
+{% block page_content %}
+
+    {% if success==True %}
+        <div class="alert alert-success">
+            Your email has been verified and your appointment has been scheduled
+        </div>
+    {% else %}
+        <div class="alert alert-danger">
+            Verification failed please check the link
+        </div>
+    {% endif %}
+{% endblock%}
\ No newline at end of file
diff --git a/erpnext/www/book_appointment/verify/index.py b/erpnext/www/book_appointment/verify/index.py
new file mode 100644
index 0000000..d4478ae
--- /dev/null
+++ b/erpnext/www/book_appointment/verify/index.py
@@ -0,0 +1,20 @@
+import frappe
+
+from frappe.utils.verified_command import verify_request
+@frappe.whitelist(allow_guest=True)
+def get_context(context):
+	if not verify_request():
+		context.success = False
+		return context
+
+	email = frappe.form_dict['email']
+	appointment_name = frappe.form_dict['appointment']
+
+	if email and appointment_name:
+		appointment = frappe.get_doc('Appointment',appointment_name)
+		appointment.set_verified(email)
+		context.success = True
+		return context
+	else:
+		context.success = False
+		return context
\ No newline at end of file