"""
Subscription Enforcement and Quota Tests

Verifies that subscription tiers properly enforce:
- Project creation limits (free: 1, pro: 10, enterprise: unlimited)
- Team member limits (free: solo, pro: 5, enterprise: unlimited)
- Monthly question limits (free: 100, pro: 1000, enterprise: unlimited)
- Feature access (code generation, collaboration, analytics, etc.)
"""

from datetime import datetime

import pytest
import requests

BASE_URL = "http://localhost:8000"
HEADERS = {"Content-Type": "application/json"}


@pytest.fixture
def free_tier_user():
    """Create a free tier test user"""
    username = f"free_user_{int(datetime.now().timestamp() * 1000)}"
    reg_resp = requests.post(
        f"{BASE_URL}/auth/register",
        json={"username": username, "email": f"{username}@test.local", "password": "Password123!"},
        headers=HEADERS,
    )
    return {"username": username, "access_token": reg_resp.json()["access_token"]}


class TestFreeTierQuotas:
    """Test free tier subscription limits"""

    def test_01_free_tier_allows_one_project(self, free_tier_user):
        """Test: Free tier can create exactly 1 project"""
        auth_headers = {**HEADERS, "Authorization": f"Bearer {free_tier_user['access_token']}"}

        response = requests.post(
            f"{BASE_URL}/projects",
            json={"name": "Free Project", "description": "Test"},
            headers=auth_headers,
        )

        assert response.status_code == 200, f"Free tier should create 1 project: {response.text}"

    def test_02_free_tier_blocks_second_project(self, free_tier_user):
        """Test: Free tier cannot create a second project"""
        auth_headers = {**HEADERS, "Authorization": f"Bearer {free_tier_user['access_token']}"}

        # Create first project
        requests.post(
            f"{BASE_URL}/projects",
            json={"name": "Project 1", "description": "First"},
            headers=auth_headers,
        )

        # Try second - should fail
        response = requests.post(
            f"{BASE_URL}/projects",
            json={"name": "Project 2", "description": "Second"},
            headers=auth_headers,
        )

        assert response.status_code == 403, "Free tier should be blocked at 2nd project"
        error_msg = str(response.json()).lower()
        assert "subscription" in error_msg or "limit" in error_msg or "project" in error_msg

    def test_03_free_tier_solo_only(self, free_tier_user):
        """Test: Free tier is solo-only (cannot add team members)"""
        # Requires collaborative project endpoint
        # Skipped until collaboration endpoint is implemented
        pass

    def test_04_free_tier_question_limit(self, free_tier_user):
        """Test: Free tier has 100 questions per month limit"""
        # Would require question generation tracking
        pass


class TestProTierQuotas:
    """Test pro tier subscription limits"""

    def test_pro_tier_allows_ten_projects(self):
        """Test: Pro tier can create up to 10 projects"""
        # Requires pro tier test user setup
        pass

    def test_pro_tier_blocks_eleventh_project(self):
        """Test: Pro tier blocked at 11 projects"""
        pass

    def test_pro_tier_team_collaboration(self):
        """Test: Pro tier can add up to 5 team members"""
        pass


class TestEnterpriseTierQuotas:
    """Test enterprise tier subscription limits"""

    def test_enterprise_tier_unlimited_projects(self):
        """Test: Enterprise tier allows unlimited projects"""
        pass

    def test_enterprise_tier_unlimited_team(self):
        """Test: Enterprise tier allows unlimited team members"""
        pass


class TestFeatureGating:
    """Test feature access by subscription tier"""

    def test_free_tier_no_code_generation(self):
        """Test: Free tier cannot access code generation"""
        # Would need code generation endpoint
        pass

    def test_pro_tier_has_code_generation(self):
        """Test: Pro tier can generate code"""
        pass

    def test_free_tier_no_collaboration(self):
        """Test: Free tier cannot use collaboration features"""
        pass

    def test_pro_tier_has_collaboration(self):
        """Test: Pro tier can collaborate"""
        pass

    def test_free_tier_no_analytics(self):
        """Test: Free tier has limited analytics"""
        pass

    def test_pro_tier_advanced_analytics(self):
        """Test: Pro tier has advanced analytics"""
        pass


class TestQuotaReset:
    """Test monthly quota resets"""

    def test_monthly_question_quota_resets(self):
        """Test: Monthly question quota resets each month"""
        pass

    def test_quota_usage_tracking(self):
        """Test: Usage is properly tracked"""
        pass


class TestTierDowngrade:
    """Test what happens when users downgrade tiers"""

    def test_downgrade_enforces_lower_limit(self):
        """Test: Downgrading to free tier enforces 1-project limit"""
        # Requires subscription management endpoint
        pass

    def test_excess_projects_archived_on_downgrade(self):
        """Test: Extra projects archived when downgrading"""
        pass


class TestQuotaMessages:
    """Test error messages when quotas exceeded"""

    def test_quota_exceeded_message_clarity(self, free_tier_user):
        """Test: Quota exceeded message is clear"""
        auth_headers = {**HEADERS, "Authorization": f"Bearer {free_tier_user['access_token']}"}

        # Create first project
        requests.post(
            f"{BASE_URL}/projects",
            json={"name": "Project 1", "description": "First"},
            headers=auth_headers,
        )

        # Try second
        response = requests.post(
            f"{BASE_URL}/projects",
            json={"name": "Project 2", "description": "Second"},
            headers=auth_headers,
        )

        data = response.json()
        error_detail = str(data.get("detail", "")).lower()

        # Error should mention:
        # - Current tier/plan
        # - Project limit
        # - How to upgrade
        assert any(
            word in error_detail
            for word in ["project", "limit", "subscription", "free", "upgrade", "pro"]
        ), f"Error message unclear: {data}"


if __name__ == "__main__":
    pytest.main([__file__, "-v"])
