# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
# License: MIT. See LICENSE
from __future__ import unicode_literals

import frappe
from frappe.utils import add_to_date, now

from frappe import _

@frappe.whitelist(allow_guest=True)
def add_feedback(reference_doctype, reference_name, rating, feedback):
	doc = frappe.get_doc(reference_doctype, reference_name)
	if doc.disable_feedback == 1:
		return

	feedback_count = frappe.db.count("Feedback", {
		"reference_doctype": reference_doctype,
		"reference_name": reference_name,
		"ip_address": frappe.local.request_ip,
		"creation": (">", add_to_date(now(), hours=-1))
	})

	if feedback_count > 20:
		frappe.msgprint(_('Hourly feedback limit reached'))
		return

	doc = frappe.new_doc('Feedback')
	doc.reference_doctype = reference_doctype
	doc.reference_name = reference_name
	doc.rating = rating
	doc.feedback = feedback
	doc.ip_address = frappe.local.request_ip
	doc.save(ignore_permissions=True)

	subject = _('New Feedback on {0}: {1}').format(reference_doctype, reference_name)
	send_mail(doc, subject)
	return doc

@frappe.whitelist()
def update_feedback(reference_doctype, reference_name, rating, feedback):
	doc = frappe.get_doc(reference_doctype, reference_name)
	if doc.disable_feedback == 1:
		return

	filters = {
		"owner": frappe.session.user,
		"reference_doctype": reference_doctype,
		"reference_name": reference_name
	}
	d = frappe.get_all('Feedback', filters=filters, limit=1)
	doc = frappe.get_doc('Feedback', d[0].name)
	doc.rating = rating
	doc.feedback = feedback
	doc.save(ignore_permissions=True)

	subject = _('Feedback updated on {0}: {1}').format(reference_doctype, reference_name)
	send_mail(doc, subject)
	return doc

def send_mail(feedback, subject):
	doc = frappe.get_doc(feedback.reference_doctype, feedback.reference_name)

	message = ("<p>{0} ({1})</p>".format(feedback.feedback, feedback.rating)
		+ "<p><a href='{0}/app/feedback/{1}' style='font-size: 80%'>{2}</a></p>".format(frappe.utils.get_request_site_address(),
			feedback.name,
			_("View Feedback")))

	# notify creator
	frappe.sendmail(
		recipients=frappe.db.get_value('User', doc.owner, 'email') or doc.owner,
		subject=subject,
		message=message,
		reference_doctype=doc.doctype,
		reference_name=doc.name
	)