# -*- coding: utf-8 -*-
from __future__ import absolute_import

from zerver.models import (
    get_user_profile_by_email, Recipient, UserMessage,
)

from zerver.lib.test_helpers import AuthedTestCase
import ujson

class PointerTest(AuthedTestCase):

    def test_update_pointer(self):
        """
        Posting a pointer to /update (in the form {"pointer": pointer}) changes
        the pointer we store for your UserProfile.
        """
        self.login("hamlet@zulip.com")
        self.assertEqual(get_user_profile_by_email("hamlet@zulip.com").pointer, -1)
        msg_id = self.send_message("othello@zulip.com", "Verona", Recipient.STREAM)
        result = self.client.post("/json/update_pointer", {"pointer": msg_id})
        self.assert_json_success(result)
        self.assertEqual(get_user_profile_by_email("hamlet@zulip.com").pointer, msg_id)

    def test_api_update_pointer(self):
        """
        Same as above, but for the API view
        """
        email = "hamlet@zulip.com"
        self.assertEqual(get_user_profile_by_email(email).pointer, -1)
        msg_id = self.send_message("othello@zulip.com", "Verona", Recipient.STREAM)
        result = self.client_put("/api/v1/users/me/pointer", {"pointer": msg_id},
                                 **self.api_auth(email))
        self.assert_json_success(result)
        self.assertEqual(get_user_profile_by_email(email).pointer, msg_id)

    def test_missing_pointer(self):
        """
        Posting json to /json/update_pointer which does not contain a pointer key/value pair
        returns a 400 and error message.
        """
        self.login("hamlet@zulip.com")
        self.assertEqual(get_user_profile_by_email("hamlet@zulip.com").pointer, -1)
        result = self.client.post("/json/update_pointer", {"foo": 1})
        self.assert_json_error(result, "Missing 'pointer' argument")
        self.assertEqual(get_user_profile_by_email("hamlet@zulip.com").pointer, -1)

    def test_invalid_pointer(self):
        """
        Posting json to /json/update_pointer with an invalid pointer returns a 400 and error
        message.
        """
        self.login("hamlet@zulip.com")
        self.assertEqual(get_user_profile_by_email("hamlet@zulip.com").pointer, -1)
        result = self.client.post("/json/update_pointer", {"pointer": "foo"})
        self.assert_json_error(result, "Bad value for 'pointer': foo")
        self.assertEqual(get_user_profile_by_email("hamlet@zulip.com").pointer, -1)

    def test_pointer_out_of_range(self):
        """
        Posting json to /json/update_pointer with an out of range (< 0) pointer returns a 400
        and error message.
        """
        self.login("hamlet@zulip.com")
        self.assertEqual(get_user_profile_by_email("hamlet@zulip.com").pointer, -1)
        result = self.client.post("/json/update_pointer", {"pointer": -2})
        self.assert_json_error(result, "Bad value for 'pointer': -2")
        self.assertEqual(get_user_profile_by_email("hamlet@zulip.com").pointer, -1)

class UnreadCountTests(AuthedTestCase):
    def setUp(self):
        self.unread_msg_ids = [self.send_message(
                "iago@zulip.com", "hamlet@zulip.com", Recipient.PERSONAL, "hello"),
                               self.send_message(
                "iago@zulip.com", "hamlet@zulip.com", Recipient.PERSONAL, "hello2")]

    def test_new_message(self):
        # Sending a new message results in unread UserMessages being created
        self.login("hamlet@zulip.com")
        content = "Test message for unset read bit"
        last_msg = self.send_message("hamlet@zulip.com", "Verona", Recipient.STREAM, content)
        user_messages = list(UserMessage.objects.filter(message=last_msg))
        self.assertEqual(len(user_messages) > 0, True)
        for um in user_messages:
            self.assertEqual(um.message.content, content)
            if um.user_profile.email != "hamlet@zulip.com":
                self.assertFalse(um.flags.read)

    def test_update_flags(self):
        self.login("hamlet@zulip.com")

        result = self.client.post("/json/update_message_flags",
                                  {"messages": ujson.dumps(self.unread_msg_ids),
                                   "op": "add",
                                   "flag": "read"})
        self.assert_json_success(result)

        # Ensure we properly set the flags
        found = 0
        for msg in self.get_old_messages():
            if msg['id'] in self.unread_msg_ids:
                self.assertEqual(msg['flags'], ['read'])
                found += 1
        self.assertEqual(found, 2)

        result = self.client.post("/json/update_message_flags",
                                  {"messages": ujson.dumps([self.unread_msg_ids[1]]),
                                   "op": "remove", "flag": "read"})
        self.assert_json_success(result)

        # Ensure we properly remove just one flag
        for msg in self.get_old_messages():
            if msg['id'] == self.unread_msg_ids[0]:
                self.assertEqual(msg['flags'], ['read'])
            elif msg['id'] == self.unread_msg_ids[1]:
                self.assertEqual(msg['flags'], [])

    def test_update_all_flags(self):
        self.login("hamlet@zulip.com")

        message_ids = [self.send_message("hamlet@zulip.com", "iago@zulip.com",
                                         Recipient.PERSONAL, "test"),
                       self.send_message("hamlet@zulip.com", "cordelia@zulip.com",
                                         Recipient.PERSONAL, "test2")]

        result = self.client.post("/json/update_message_flags", {"messages": ujson.dumps(message_ids),
                                                                 "op": "add",
                                                                 "flag": "read"})
        self.assert_json_success(result)

        result = self.client.post("/json/update_message_flags", {"messages": ujson.dumps([]),
                                                                 "op": "remove",
                                                                 "flag": "read",
                                                                 "all": ujson.dumps(True)})
        self.assert_json_success(result)

        for msg in self.get_old_messages():
            self.assertEqual(msg['flags'], [])