# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
# License: GNU General Public License v3. See license.txt

from __future__ import unicode_literals
import frappe
import json

def get_context(context):
	project_user = frappe.db.get_value("Project User", {"parent": frappe.form_dict.project, "user": frappe.session.user} , ["user", "view_attachments"], as_dict= True)
	if frappe.session.user != 'Administrator' and (not project_user or frappe.session.user == 'Guest'):
		raise frappe.PermissionError

	context.no_cache = 1
	context.show_sidebar = True
	project = frappe.get_doc('Project', frappe.form_dict.project)

	project.has_permission('read')

	project.tasks = get_tasks(project.name, start=0, item_status='open',
		search=frappe.form_dict.get("search"))

	project.timesheets = get_timesheets(project.name, start=0,
		search=frappe.form_dict.get("search"))

	if project_user and project_user.view_attachments:
		project.attachments = get_attachments(project.name)

	context.doc = project


def get_tasks(project, start=0, search=None, item_status=None):
	filters = {"project": project}
	if search:
		filters["subject"] = ("like", "%{0}%".format(search))
	tasks = frappe.get_all("Task", filters=filters,
		fields=["name", "subject", "status", "modified", "_assign", "exp_end_date", "is_group", "parent_task"],
		limit_start=start, limit_page_length=10)
	task_nest = []
	for task in tasks:
		if task.is_group:
			child_tasks = list(filter(lambda x: x.parent_task == task.name, tasks))
			if len(child_tasks):
				task.children = child_tasks
		task_nest.append(task)
	return list(filter(lambda x: not x.parent_task, tasks))

@frappe.whitelist()
def get_task_html(project, start=0, item_status=None):
	return frappe.render_template("erpnext/templates/includes/projects/project_tasks.html",
		{"doc": {
			"name": project,
			"project_name": project,
			"tasks": get_tasks(project, start, item_status=item_status)}
		}, is_path=True)

def get_timesheets(project, start=0, search=None):
	filters = {"project": project}
	if search:
		filters["activity_type"] = ("like", "%{0}%".format(search))

	timesheets = frappe.get_all('Timesheet Detail', filters=filters,
	fields=['project','activity_type','from_time','to_time','parent'],
	limit_start=start, limit_page_length=10)
	for timesheet in timesheets:
		info = frappe.get_all('Timesheet', filters={"name": timesheet.parent},
			fields=['name','status','modified','modified_by'],
			limit_start=start, limit_page_length=10)
		if len(info):
			timesheet.update(info[0])
	return timesheets

@frappe.whitelist()
def get_timesheet_html(project, start=0):
	return frappe.render_template("erpnext/templates/includes/projects/project_timesheets.html",
		{"doc": {"timesheets": get_timesheets(project, start)}}, is_path=True)

def get_attachments(project):
	return frappe.get_all('File', filters= {"attached_to_name": project, "attached_to_doctype": 'Project', "is_private":0},
		fields=['file_name','file_url', 'file_size'])