#!/usr/bin/env python3
"""Test Grid.children collection - Issue #132
Refactored to use mcrfpy.step() for synchronous execution.
"""
import mcrfpy
from mcrfpy import automation
import sys

print("Creating test scene...")
test = mcrfpy.Scene("test")
test.activate()
mcrfpy.step(0.01)  # Initialize

# Get the scene UI
ui = test.children

# Test 1: Creating Grid with children
print("Test 1: Creating Grid with children...")
grid = mcrfpy.Grid(grid_size=(20, 15), pos=(50, 50), size=(320, 240))
grid.fill_color = mcrfpy.Color(30, 30, 60)
ui.append(grid)

# Verify entities and children properties exist
print(f"  grid.entities = {grid.entities}")
print(f"  grid.children = {grid.children}")

# Test 2: Add UIDrawable children to the grid
print("\nTest 2: Adding UIDrawable children...")

# Speech bubble style caption - positioned in grid-world pixels
# At cell (5, 3) which is 5*16=80, 3*16=48 in pixels
caption = mcrfpy.Caption(text="Hello!", pos=(80, 48))
caption.fill_color = mcrfpy.Color(255, 255, 200)
caption.outline = 1
caption.outline_color = mcrfpy.Color(0, 0, 0)
grid.children.append(caption)
print(f"  Added caption at (80, 48)")

# A highlight circle around cell (10, 7) = (160, 112)
# Circle needs center, not pos
circle = mcrfpy.Circle(center=(168, 120), radius=20,
                       fill_color=mcrfpy.Color(255, 255, 0, 100),
                       outline_color=mcrfpy.Color(255, 255, 0),
                       outline=2)
grid.children.append(circle)
print(f"  Added highlight circle at (168, 120)")

# A line indicating a path from (2,2) to (8,6)
# In pixels: (32, 32) to (128, 96)
line = mcrfpy.Line(start=(32, 32), end=(128, 96),
                   color=mcrfpy.Color(0, 255, 0), thickness=3)
grid.children.append(line)
print(f"  Added path line from (32,32) to (128,96)")

# An arc for range indicator at (15, 10) = (240, 160)
arc = mcrfpy.Arc(center=(240, 160), radius=40, start_angle=0, end_angle=270,
                 color=mcrfpy.Color(255, 0, 255), thickness=4)
grid.children.append(arc)
print(f"  Added range arc at (240, 160)")

# Test 3: Verify children count
print(f"\nTest 3: Verifying children count...")
print(f"  grid.children count = {len(grid.children)}")
if len(grid.children) != 4:
    print(f"FAIL: Expected 4 children, got {len(grid.children)}")
    sys.exit(1)

# Test 4: Children should be accessible by index
print("\nTest 4: Accessing children by index...")
child0 = grid.children[0]
print(f"  grid.children[0] = {child0}")
child1 = grid.children[1]
print(f"  grid.children[1] = {child1}")

# Test 5: Modify a child's position (should update in grid)
print("\nTest 5: Modifying child position...")
original_pos = (caption.pos.x, caption.pos.y)
caption.pos = mcrfpy.Vector(90, 58)
new_pos = (caption.pos.x, caption.pos.y)
print(f"  Moved caption from {original_pos} to {new_pos}")

# Test 6: Test z_index for children
print("\nTest 6: Testing z_index ordering...")
# Add overlapping elements with different z_index
frame1 = mcrfpy.Frame(pos=(150, 80), size=(40, 40))
frame1.fill_color = mcrfpy.Color(255, 0, 0, 200)
frame1.z_index = 10
grid.children.append(frame1)

frame2 = mcrfpy.Frame(pos=(160, 90), size=(40, 40))
frame2.fill_color = mcrfpy.Color(0, 255, 0, 200)
frame2.z_index = 5  # Lower z_index, rendered first (behind)
grid.children.append(frame2)
print(f"  Added overlapping frames: red z=10, green z=5")

# Test 7: Test visibility
print("\nTest 7: Testing child visibility...")
frame3 = mcrfpy.Frame(pos=(50, 150), size=(30, 30))
frame3.fill_color = mcrfpy.Color(0, 0, 255)
frame3.visible = False
grid.children.append(frame3)
print(f"  Added invisible blue frame (should not appear)")

# Test 8: Pan the grid and verify children move with it
print("\nTest 8: Testing pan (children should follow grid camera)...")
# Center the view on cell (10, 7.5) - default was grid center
grid.center = (160, 120)  # Center on pixel (160, 120)
print(f"  Centered grid on (160, 120)")

# Test 9: Test zoom
print("\nTest 9: Testing zoom...")
grid.zoom = 1.5
print(f"  Set zoom to 1.5")

print(f"\nFinal children count: {len(grid.children)}")

# Step to render everything
mcrfpy.step(0.1)

# Take screenshot
automation.screenshot("test_grid_children_result.png")
print("Screenshot saved to test_grid_children_result.png")

print("PASS - Grid.children test completed")
sys.exit(0)
