from __future__ import unicode_literals

import os
import json
import urllib
import tempfile
import unittest

from werkzeug.test import Client
from werkzeug.wrappers import Response

from isso import Isso, notify, utils, views
from isso.views import comment

utils.heading = lambda *args: "Untitled."
utils.urlexists = lambda *args: True


class FakeIP(object):

    def __init__(self, app):
        self.app = app

    def __call__(self, environ, start_response):
        environ['REMOTE_ADDR'] = '192.168.1.1'
        return self.app(environ, start_response)


class TestComments(unittest.TestCase):

    def setUp(self):
        fd, self.path = tempfile.mkstemp()

        self.app = Isso(self.path, '...', '...', 15*60, "...", notify.NullMailer())
        self.app.wsgi_app = FakeIP(self.app.wsgi_app)

        self.client = Client(self.app, Response)
        self.get = self.client.get
        self.put = self.client.put
        self.post = self.client.post
        self.delete = self.client.delete

    def tearDown(self):
        os.unlink(self.path)

    def testGet(self):

        self.post('/new?uri=%2Fpath%2F', data=json.dumps({'text': 'Lorem ipsum ...'}))
        r = self.get('/id/1')
        assert r.status_code == 200

        rv = json.loads(r.data)

        assert rv['id'] == 1
        assert rv['text'] == '<p>Lorem ipsum ...</p>\n'

    def testCreate(self):

        rv = self.post('/new?uri=%2Fpath%2F', data=json.dumps({'text': 'Lorem ipsum ...'}))

        assert rv.status_code == 201
        assert len(filter(lambda header: header[0] == 'Set-Cookie', rv.headers)) == 1

        rv = json.loads(rv.data)

        assert rv["mode"] == 1
        assert rv["text"] == '<p>Lorem ipsum ...</p>\n'

    def testCreateMultiple(self):

        a = self.post('/new?uri=test', data=json.dumps({'text': '...'}))
        b = self.post('/new?uri=test', data=json.dumps({'text': '...'}))
        c = self.post('/new?uri=test', data=json.dumps({'text': '...'}))

        assert json.loads(a.data)["id"] == 1
        assert json.loads(b.data)["id"] == 2
        assert json.loads(c.data)["id"] == 3

    def testCreateAndGetMultiple(self):

        for i in range(20):
            self.post('/new?uri=%2Fpath%2F', data=json.dumps({'text': 'Spam'}))

        r = self.get('/?uri=%2Fpath%2F')
        assert r.status_code == 200

        rv = json.loads(r.data)
        assert len(rv) == 20

    def testGetInvalid(self):

        assert self.get('/?uri=%2Fpath%2F&id=123').status_code == 404
        assert self.get('/?uri=%2Fpath%2Fspam%2F&id=123').status_code == 404
        assert self.get('/?uri=?uri=%foo%2F').status_code == 404

    def testUpdate(self):

        self.post('/new?uri=%2Fpath%2F', data=json.dumps({'text': 'Lorem ipsum ...'}))
        self.put('/id/1', data=json.dumps({
            'text': 'Hello World', 'author': 'me', 'website': 'http://example.com/'}))

        r = self.get('/id/1?plain=1')
        assert r.status_code == 200

        rv = json.loads(r.data)
        assert rv['text'] == 'Hello World'
        assert rv['author'] == 'me'
        assert rv['website'] == 'http://example.com/'
        assert 'modified' in rv

    def testDelete(self):

        self.post('/new?uri=%2Fpath%2F', data=json.dumps({'text': 'Lorem ipsum ...'}))
        r = self.delete('/id/1')
        assert r.status_code == 200
        assert json.loads(r.data) == None
        assert self.get('/id/1').status_code == 404

    def testDeleteWithReference(self):

        client = Client(self.app, Response)
        client.post('/new?uri=%2Fpath%2F', data=json.dumps({'text': 'First'}))
        client.post('/new?uri=%2Fpath%2F', data=json.dumps({'text': 'First', 'parent': 1}))

        r = client.delete('/id/1')
        assert r.status_code == 200
        print r.data
        assert json.loads(r.data)['mode'] == 4

        assert self.get('/?uri=%2Fpath%2F&id=1').status_code == 200
        assert self.get('/?uri=%2Fpath%2F&id=2').status_code == 200

        r = client.delete('/id/2')
        assert self.get('/?uri=%2Fpath%2F').status_code == 404

    def testDeleteWithMultipleReferences(self):
        """
        [ comment 1 ]
            |
            --- [ comment 2, ref 1 ]
                    |
                    --- [ comment 3, ref 2 ]
                    |
                    --- [ comment 4, ref 2 ]
        [ comment 5 ]
        """
        client = Client(self.app, Response)

        client.post('/new?uri=%2Fpath%2F', data=json.dumps({'text': 'First'}))
        client.post('/new?uri=%2Fpath%2F', data=json.dumps({'text': 'Second', 'parent': 1}))
        client.post('/new?uri=%2Fpath%2F', data=json.dumps({'text': 'Third 1', 'parent': 2}))
        client.post('/new?uri=%2Fpath%2F', data=json.dumps({'text': 'Third 2', 'parent': 2}))
        client.post('/new?uri=%2Fpath%2F', data=json.dumps({'text': '...'}))

        client.delete('/id/1')
        assert self.get('/?uri=%2Fpath%2F').status_code == 200
        client.delete('/id/2')
        assert self.get('/?uri=%2Fpath%2F').status_code == 200
        client.delete('/id/3')
        assert self.get('/?uri=%2Fpath%2F').status_code == 200
        client.delete('/id/4')
        assert self.get('/?uri=%2Fpath%2F').status_code == 200
        client.delete('/id/5')
        assert self.get('/?uri=%2Fpath%2F').status_code == 404

    def testPathVariations(self):

        paths = ['/sub/path/', '/path.html', '/sub/path.html', 'path', '/']

        for path in paths:
            assert self.post('/new?' + urllib.urlencode({'uri': path}),
                             data=json.dumps({'text': '...'})).status_code == 201

        for i, path in enumerate(paths):
            assert self.get('/?' + urllib.urlencode({'uri': path})).status_code == 200
            assert self.get('/id/%i' % (i + 1)).status_code == 200

    def testDeleteAndCreateByDifferentUsersButSamePostId(self):

        mallory = Client(self.app, Response)
        mallory.post('/new?uri=%2Fpath%2F', data=json.dumps({'text': 'Foo'}))
        mallory.delete('/id/1')

        bob = Client(self.app, Response)
        bob.post('/new?uri=%2Fpath%2F', data=json.dumps({'text': 'Bar'}))

        assert mallory.delete('/id/1').status_code == 403
        assert bob.delete('/id/1').status_code == 200

    def testHash(self):

        a = self.post('/new?uri=%2Fpath%2F', data=json.dumps({"text": "Aaa"}))
        b = self.post('/new?uri=%2Fpath%2F', data=json.dumps({"text": "Bbb"}))
        c = self.post('/new?uri=%2Fpath%2F', data=json.dumps({"text": "Ccc", "email": "..."}))

        assert a.status_code == b.status_code == c.status_code == 201
        a = json.loads(a.data)
        b = json.loads(b.data)
        c = json.loads(c.data)

        assert a['hash'] != '192.168.1.1'
        assert a['hash'] == b['hash']
        assert a['hash'] != c['hash']

    def testVisibleFields(self):

        rv = self.post('/new?uri=%2Fpath%2F', data=json.dumps({"text": "..."}))
        assert rv.status_code == 201

        rv = json.loads(rv.data)

        for key in comment.FIELDS:
            rv.pop(key)

        assert rv.keys() == []

    def testCounts(self):

        assert self.get('/count?uri=%2Fpath%2F').status_code == 404
        self.post('/new?uri=%2Fpath%2F', data=json.dumps({"text": "..."}))

        rv = self.get('/count?uri=%2Fpath%2F')
        assert rv.status_code == 200
        assert json.loads(rv.data) == 1

        for x in range(3):
            self.post('/new?uri=%2Fpath%2F', data=json.dumps({"text": "..."}))

        rv = self.get('/count?uri=%2Fpath%2F')
        assert rv.status_code == 200
        assert json.loads(rv.data) == 4

        for x in range(4):
            self.delete('/id/%i' % (x + 1))

        rv = self.get('/count?uri=%2Fpath%2F')
        assert rv.status_code == 404