"""
Tests for FEATURE-022-C: Feedback Capture & Panel

Minimal backend tests - this feature is primarily frontend JavaScript.
Tests verify data model structure and any backend integration points.
"""
import pytest
from datetime import datetime


class TestFeedbackEntryModel:
    """Test FeedbackEntry data model structure."""
    
    def test_entry_has_required_fields(self):
        """Entry should have all required fields."""
        # Simulating the JavaScript FeedbackEntry structure
        entry = {
            'id': 'entry-1234567890',
            'name': 'Feedback-20260128-143000',
            'url': 'http://localhost:3000/dashboard',
            'elements': ['button.submit', 'div.header'],
            'screenshot': None,
            'screenshotDimensions': None,
            'description': '',
            'createdAt': 1706450000000,
            'status': 'draft'
        }
        
        assert 'id' in entry
        assert 'name' in entry
        assert 'url' in entry
        assert 'elements' in entry
        assert 'screenshot' in entry
        assert 'description' in entry
        assert 'createdAt' in entry
        assert 'status' in entry
    
    def test_entry_name_format(self):
        """Entry name should follow Feedback-YYYYMMDD-HHMMSS format."""
        import re
        
        name = 'Feedback-20260128-143000'
        pattern = r'^Feedback-\d{8}-\d{6}$'
        
        assert re.match(pattern, name) is not None
    
    def test_entry_valid_statuses(self):
        """Entry status should be one of valid values."""
        valid_statuses = ['draft', 'submitted', 'failed']
        
        for status in valid_statuses:
            entry = {'status': status}
            assert entry['status'] in valid_statuses
    
    def test_entry_elements_is_list(self):
        """Elements should be a list of CSS selectors."""
        entry = {
            'elements': ['#header', '.button', 'a.nav-link:nth-child(2)']
        }
        
        assert isinstance(entry['elements'], list)
        assert all(isinstance(el, str) for el in entry['elements'])
    
    def test_entry_screenshot_is_base64_or_none(self):
        """Screenshot should be base64 data URL or None."""
        # Without screenshot
        entry1 = {'screenshot': None}
        assert entry1['screenshot'] is None
        
        # With screenshot (base64 data URL format)
        entry2 = {'screenshot': 'data:image/png;base64,iVBORw0KGgo...'}
        assert entry2['screenshot'].startswith('data:image/')
    
    def test_screenshot_dimensions_structure(self):
        """Screenshot dimensions should have width and height."""
        dimensions = {'width': 200, 'height': 150}
        
        assert 'width' in dimensions
        assert 'height' in dimensions
        assert isinstance(dimensions['width'], int)
        assert isinstance(dimensions['height'], int)


class TestFeedbackEntryCreation:
    """Test feedback entry creation logic."""
    
    def test_generate_entry_id(self):
        """Entry ID should be unique."""
        import time
        
        id1 = f'entry-{int(time.time() * 1000)}'
        time.sleep(0.01)
        id2 = f'entry-{int(time.time() * 1000)}'
        
        assert id1 != id2
    
    def test_generate_entry_name_from_timestamp(self):
        """Entry name should be generated from current timestamp."""
        now = datetime(2026, 1, 28, 14, 30, 0)
        expected = 'Feedback-20260128-143000'
        
        name = f"Feedback-{now.strftime('%Y%m%d-%H%M%S')}"
        assert name == expected
    
    def test_entry_preserves_selected_elements(self):
        """Entry should preserve list of selected element selectors."""
        selected = ['#btn-submit', 'div.modal-header', 'span.icon']
        
        entry = {
            'elements': selected.copy()
        }
        
        assert entry['elements'] == selected
        assert entry['elements'] is not selected  # Should be a copy


class TestBoundingBoxCalculation:
    """Test bounding box union calculation for multiple elements."""
    
    def test_single_element_bounding_box(self):
        """Single element should return its own bounds."""
        rect = {'left': 100, 'top': 50, 'right': 300, 'bottom': 150}
        
        bounds = {
            'x': rect['left'],
            'y': rect['top'],
            'width': rect['right'] - rect['left'],
            'height': rect['bottom'] - rect['top']
        }
        
        assert bounds['x'] == 100
        assert bounds['y'] == 50
        assert bounds['width'] == 200
        assert bounds['height'] == 100
    
    def test_multiple_elements_union_bounding_box(self):
        """Multiple elements should return union of all bounds."""
        rects = [
            {'left': 100, 'top': 50, 'right': 200, 'bottom': 100},
            {'left': 150, 'top': 80, 'right': 300, 'bottom': 200},
            {'left': 50, 'top': 120, 'right': 180, 'bottom': 250}
        ]
        
        left = min(r['left'] for r in rects)
        top = min(r['top'] for r in rects)
        right = max(r['right'] for r in rects)
        bottom = max(r['bottom'] for r in rects)
        
        bounds = {
            'x': left,
            'y': top,
            'width': right - left,
            'height': bottom - top
        }
        
        assert bounds['x'] == 50
        assert bounds['y'] == 50
        assert bounds['width'] == 250  # 300 - 50
        assert bounds['height'] == 200  # 250 - 50


class TestTimeAgoFormatting:
    """Test relative time formatting."""
    
    def test_format_just_now(self):
        """Recent time should show 'Just now'."""
        import time
        now = time.time() * 1000
        created = now - 30000  # 30 seconds ago
        
        diff_seconds = (now - created) / 1000
        
        if diff_seconds < 60:
            result = 'Just now'
        
        assert result == 'Just now'
    
    def test_format_minutes_ago(self):
        """Time within hour should show minutes."""
        import time
        now = time.time() * 1000
        created = now - (5 * 60 * 1000)  # 5 minutes ago
        
        diff_seconds = (now - created) / 1000
        diff_minutes = int(diff_seconds / 60)
        
        if 1 <= diff_minutes < 60:
            result = f'{diff_minutes} min ago'
        
        assert result == '5 min ago'
    
    def test_format_hours_ago(self):
        """Time within day should show hours."""
        import time
        now = time.time() * 1000
        created = now - (2 * 60 * 60 * 1000)  # 2 hours ago
        
        diff_seconds = (now - created) / 1000
        diff_hours = int(diff_seconds / 3600)
        
        if 1 <= diff_hours < 24:
            result = f'{diff_hours} hour{"s" if diff_hours != 1 else ""} ago'
        
        assert result == '2 hours ago'


class TestContextMenuBehavior:
    """Test context menu behavioral requirements."""
    
    def test_menu_requires_selection(self):
        """Context menu should only show with selected elements."""
        selected_elements = []
        
        should_show_menu = len(selected_elements) > 0
        assert should_show_menu is False
        
        selected_elements = ['button.submit']
        should_show_menu = len(selected_elements) > 0
        assert should_show_menu is True
    
    def test_menu_actions(self):
        """Context menu should have expected actions."""
        actions = ['feedback', 'screenshot', 'copy']
        
        assert 'feedback' in actions
        assert 'screenshot' in actions
        assert 'copy' in actions


class TestFeedbackEntryList:
    """Test feedback entries list management."""
    
    def test_new_entry_added_to_beginning(self):
        """New entry should be added to beginning of list."""
        entries = [
            {'id': 'entry-1', 'name': 'Feedback-1'},
            {'id': 'entry-2', 'name': 'Feedback-2'}
        ]
        
        new_entry = {'id': 'entry-3', 'name': 'Feedback-3'}
        entries.insert(0, new_entry)  # unshift equivalent
        
        assert entries[0]['id'] == 'entry-3'
    
    def test_delete_entry_by_id(self):
        """Should be able to delete entry by ID."""
        entries = [
            {'id': 'entry-1'},
            {'id': 'entry-2'},
            {'id': 'entry-3'}
        ]
        
        id_to_delete = 'entry-2'
        entries = [e for e in entries if e['id'] != id_to_delete]
        
        assert len(entries) == 2
        assert all(e['id'] != id_to_delete for e in entries)
    
    def test_find_entry_by_id(self):
        """Should be able to find entry by ID."""
        entries = [
            {'id': 'entry-1', 'description': 'First'},
            {'id': 'entry-2', 'description': 'Second'}
        ]
        
        found = next((e for e in entries if e['id'] == 'entry-2'), None)
        
        assert found is not None
        assert found['description'] == 'Second'
    
    def test_update_entry_description(self):
        """Should be able to update entry description."""
        entries = [{'id': 'entry-1', 'description': ''}]
        
        entry = entries[0]
        entry['description'] = 'Updated feedback text'
        
        assert entries[0]['description'] == 'Updated feedback text'
