import unittest
from flask import Flask
from src.app import app
import json


class FlaskAppTests(unittest.TestCase):
    def setUp(self):
        """
        Set up the test client and any other test configuration.
        """
        self.app = app.test_client()
        self.app.testing = True

    def test_index(self):
        """
        Test the index route.
        """
        response = self.app.get('/')
        self.assertEqual(response.status_code, 200)
        self.assertIn(b'Welcome', response.data)  # Adjust this based on your actual landing page content

    def test_login_redirect_on_invalid(self):
        """
        Test that login redirects on invalid credentials.
        """
        # Invalid credentials should redirect to login page
        invalid_data = {'user_name': 'wrong_user', 'password': 'wrong_password'}
        response = self.app.post('/login', data=invalid_data)
        self.assertEqual(response.status_code, 302)  # Redirects on failure
        # Follow redirect to check error flash message
        response = self.app.post('/login', data=invalid_data, follow_redirects=True)
        # The page should contain login form or error message
        self.assertIn(b'login', response.data.lower())

    def test_login_with_valid_credentials(self):
        """
        Test the login route with credentials that may or may not exist.
        """
        # Valid credentials (test user may not exist)
        valid_data = {'user_name': 'test_user', 'password': 'test_password'}
        response = self.app.post('/login', data=valid_data)
        # Should redirect regardless (to index if success, to login if failure)
        self.assertEqual(response.status_code, 302)

    def test_signup(self):
        """
        Test the signup route.
        """
        import random
        username = f'test_user_{random.randint(10000, 99999)}'
        data = {'email': f'{username}@example.com', 'user_name': username, 'password': 'new_password'}
        response = self.app.post('/signup_submit', data=data)
        self.assertEqual(response.status_code, 302)  # Redirects on success

    def test_signout(self):
        """
        Test the signout route.
        """
        response = self.app.get('/signout')
        self.assertEqual(response.status_code, 302)  # Redirects on signout

    def test_indicator_init_requires_auth(self):
        """
        Test that indicator_init requires authentication.
        """
        data = {"user_name": "test_user"}
        response = self.app.post('/api/indicator_init', data=json.dumps(data), content_type='application/json')
        # Should return 401 without proper session
        self.assertIn(response.status_code, [200, 401])  # Either authenticated or not

    def test_login_page_loads(self):
        """
        Test that login page loads.
        """
        response = self.app.get('/login')
        self.assertEqual(response.status_code, 200)

    def test_signup_page_loads(self):
        """
        Test that signup page loads.
        """
        response = self.app.get('/signup')
        self.assertEqual(response.status_code, 200)


if __name__ == '__main__':
    unittest.main()