"""P14.1 — Comments API tests.

Covers:
- List comments for task
- Create comment
- Update comment
- Delete comment
- Comment permissions
"""
import pytest


class TestComments:
    """Comment management endpoints."""

    def test_list_comments(self, client, db, make_user, make_project, auth_header, seed_roles_and_permissions, make_member):
        """List comments for a task."""
        admin_role, mgr_role, dev_role = seed_roles_and_permissions
        user = make_user()
        project = make_project()
        make_member(project.id, user.id, dev_role.id)
        
        from app.models.milestone import Milestone, MilestoneStatus
        from app.models.task import Task, TaskStatus, TaskPriority
        from app.models.models import Comment
        
        milestone = Milestone(title="M1", project_id=project.id, status=MilestoneStatus.OPEN)
        db.add(milestone)
        db.commit()
        
        task = Task(
            title="Test Task", project_id=project.id, milestone_id=milestone.id,
            reporter_id=user.id, status=TaskStatus.OPEN, priority=TaskPriority.MEDIUM
        )
        db.add(task)
        db.commit()
        
        # Add comments
        comment1 = Comment(content="Comment 1", task_id=task.id, author_id=user.id)
        comment2 = Comment(content="Comment 2", task_id=task.id, author_id=user.id)
        db.add_all([comment1, comment2])
        db.commit()
        
        resp = client.get(f"/projects/{project.id}/tasks/{task.id}/comments", headers=auth_header(user))
        assert resp.status_code == 200
        data = resp.json()
        assert len(data) == 2

    def test_create_comment(self, client, db, make_user, make_project, auth_header, seed_roles_and_permissions, make_member):
        """Create comment on task."""
        admin_role, mgr_role, dev_role = seed_roles_and_permissions
        user = make_user()
        project = make_project()
        make_member(project.id, user.id, dev_role.id)
        
        from app.models.milestone import Milestone, MilestoneStatus
        from app.models.task import Task, TaskStatus, TaskPriority
        
        milestone = Milestone(title="M1", project_id=project.id, status=MilestoneStatus.OPEN)
        db.add(milestone)
        db.commit()
        
        task = Task(
            title="Test Task", project_id=project.id, milestone_id=milestone.id,
            reporter_id=user.id, status=TaskStatus.OPEN, priority=TaskPriority.MEDIUM
        )
        db.add(task)
        db.commit()
        
        resp = client.post(
            f"/projects/{project.id}/tasks/{task.id}/comments",
            json={"content": "This is a test comment"},
            headers=auth_header(user)
        )
        assert resp.status_code == 201
        data = resp.json()
        assert data["content"] == "This is a test comment"
        assert data["author_id"] == user.id

    def test_update_comment(self, client, db, make_user, make_project, auth_header, seed_roles_and_permissions, make_member):
        """Update own comment."""
        admin_role, mgr_role, dev_role = seed_roles_and_permissions
        user = make_user()
        project = make_project()
        make_member(project.id, user.id, dev_role.id)
        
        from app.models.milestone import Milestone, MilestoneStatus
        from app.models.task import Task, TaskStatus, TaskPriority
        from app.models.models import Comment
        
        milestone = Milestone(title="M1", project_id=project.id, status=MilestoneStatus.OPEN)
        db.add(milestone)
        db.commit()
        
        task = Task(
            title="Test Task", project_id=project.id, milestone_id=milestone.id,
            reporter_id=user.id, status=TaskStatus.OPEN, priority=TaskPriority.MEDIUM
        )
        db.add(task)
        db.commit()
        
        comment = Comment(content="Original", task_id=task.id, author_id=user.id)
        db.add(comment)
        db.commit()
        
        resp = client.patch(
            f"/projects/{project.id}/tasks/{task.id}/comments/{comment.id}",
            json={"content": "Updated content"},
            headers=auth_header(user)
        )
        assert resp.status_code == 200
        data = resp.json()
        assert data["content"] == "Updated content"

    def test_delete_comment(self, client, db, make_user, make_project, auth_header, seed_roles_and_permissions, make_member):
        """Delete comment."""
        admin_role, mgr_role, dev_role = seed_roles_and_permissions
        user = make_user()
        project = make_project()
        make_member(project.id, user.id, dev_role.id)
        
        from app.models.milestone import Milestone, MilestoneStatus
        from app.models.task import Task, TaskStatus, TaskPriority
        from app.models.models import Comment
        
        milestone = Milestone(title="M1", project_id=project.id, status=MilestoneStatus.OPEN)
        db.add(milestone)
        db.commit()
        
        task = Task(
            title="Test Task", project_id=project.id, milestone_id=milestone.id,
            reporter_id=user.id, status=TaskStatus.OPEN, priority=TaskPriority.MEDIUM
        )
        db.add(task)
        db.commit()
        
        comment = Comment(content="To delete", task_id=task.id, author_id=user.id)
        db.add(comment)
        db.commit()
        
        resp = client.delete(
            f"/projects/{project.id}/tasks/{task.id}/comments/{comment.id}",
            headers=auth_header(user)
        )
        assert resp.status_code == 204

    def test_cannot_edit_others_comment(self, client, db, make_user, make_project, auth_header, seed_roles_and_permissions, make_member):
        """Cannot edit another user's comment."""
        admin_role, mgr_role, dev_role = seed_roles_and_permissions
        user1 = make_user(username="user1")
        user2 = make_user(username="user2")
        project = make_project()
        make_member(project.id, user1.id, dev_role.id)
        make_member(project.id, user2.id, dev_role.id)
        
        from app.models.milestone import Milestone, MilestoneStatus
        from app.models.task import Task, TaskStatus, TaskPriority
        from app.models.models import Comment
        
        milestone = Milestone(title="M1", project_id=project.id, status=MilestoneStatus.OPEN)
        db.add(milestone)
        db.commit()
        
        task = Task(
            title="Test Task", project_id=project.id, milestone_id=milestone.id,
            reporter_id=user1.id, status=TaskStatus.OPEN, priority=TaskPriority.MEDIUM
        )
        db.add(task)
        db.commit()
        
        comment = Comment(content="User1's comment", task_id=task.id, author_id=user1.id)
        db.add(comment)
        db.commit()
        
        resp = client.patch(
            f"/projects/{project.id}/tasks/{task.id}/comments/{comment.id}",
            json={"content": "Hacked!"},
            headers=auth_header(user2)
        )
        assert resp.status_code == 403