# ----------------------------------------------------------------------
# FULL PIPELINE TEST
# ----------------------------------------------------------------------
import sys
import os
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

import time
import json
from PIL import Image

from config import TEST_IMAGE_URL, TEST_PRODUCT_TYPE

# ----------------------------------------------------------------------
# INTEGRATION TEST - PROCESS REAL IMAGE WITH ALL MODELS
# ----------------------------------------------------------------------
def test_process_image_through_entire_pipeline():
    print(f"\n{'='*60}")
    print(f"TESTING FULL PIPELINE WITH: {TEST_IMAGE_URL}")
    print(f"Product Type: {TEST_PRODUCT_TYPE}")
    print(f"{'='*60}\n")
    
    # Import needed modules
    from src.utils import ProcessingContext
    from src.pipeline import run_functions_in_sequence, PIPELINE_STEPS
    from src.models import model_loader
    
    # ----------------------------------------------------------------------
    # CHECK MODEL LOADING STATE
    # ----------------------------------------------------------------------
    print("\n🔍 CHECKING MODEL LOADING STATE...")
    
    # In Zero GPU environment, models are loaded on-demand
    if os.getenv("SPACE_ID"):
        print("✅ Running in Zero GPU environment - models will load on-demand")
        print(f"   MODELS_LOADED: {model_loader.MODELS_LOADED}")
        print(f"   LOAD_ERROR: {model_loader.LOAD_ERROR}")
    else:
        # For local testing, try to ensure models are loaded
        print("🔥 LOADING ALL MODELS...")
        try:
            model_loader.ensure_models_loaded()
            if model_loader.MODELS_LOADED:
                print("✅ Models loaded successfully!")
            else:
                print("⚠️ Models not fully loaded but continuing...")
        except Exception as e:
            print(f"⚠️ Model loading encountered issues: {e}")
            print("Continuing with test anyway...")
    
    # ----------------------------------------------------------------------
    # PREPARE TEST DATA
    # ----------------------------------------------------------------------
    print("\n📦 PREPARING TEST DATA...")
    
    # Create processing context
    contexts = [ProcessingContext(url=TEST_IMAGE_URL, product_type=TEST_PRODUCT_TYPE, keywords=[])]
    
    # Track processing steps
    batch_logs = []
    
    # ----------------------------------------------------------------------
    # RUN PIPELINE
    # ----------------------------------------------------------------------
    print("\n🚀 RUNNING FULL PIPELINE...")
    print(f"   Pipeline steps: {[step.__name__ for step in PIPELINE_STEPS]}")
    
    start_time = time.time()
    
    # Run the entire pipeline
    batch_logs = run_functions_in_sequence(contexts, PIPELINE_STEPS)
    
    end_time = time.time()
    processing_time = end_time - start_time
    
    # ----------------------------------------------------------------------
    # ANALYZE RESULTS
    # ----------------------------------------------------------------------
    ctx = contexts[0]
    
    print(f"\n📊 PROCESSING RESULTS:")
    print(f"   Total processing time: {processing_time:.2f} seconds")
    
    # Check if processing was skipped
    if hasattr(ctx, 'skip_processing') and ctx.skip_processing:
        print(f"❌ Processing was skipped")
        if hasattr(ctx, 'error') and ctx.error:
            print(f"   Error: {ctx.error}")
    
    # Check each processing step
    print("\n📋 STEP-BY-STEP RESULTS:")
    
    # 1. Image Download
    if "original" in ctx.pil_img:
        print(f"✅ Step 1: Image downloaded - Size: {ctx.pil_img['original'].size}")
    else:
        print(f"❌ Step 1: Image download failed")
    
    # 2. Background Removal
    if "background_removed" in ctx.pil_img:
        print(f"✅ Step 2: Background removed successfully")
    else:
        print(f"⚠️ Step 2: Background removal skipped")
        if os.getenv("SPACE_ID"):
            print(f"   (Expected in Zero GPU - models load on-demand)")
    
    # 3. Object Detection
    if hasattr(ctx, 'detection_result') and ctx.detection_result:
        print(f"✅ Step 3: Objects detected - {len(ctx.detection_result)} detections")
        # Show detection details
        for det_type, detections in ctx.detection_result.items():
            if detections:
                print(f"   - {det_type}: {len(detections)} objects")
    else:
        print(f"⚠️ Step 3: Object detection skipped")
    
    # 4. Cropping/Padding
    if "cropped" in ctx.pil_img:
        print(f"✅ Step 4: Image cropped - Size: {ctx.pil_img['cropped'].size}")
    elif "final" in ctx.pil_img:
        print(f"✅ Step 4: Final image created - Size: {ctx.pil_img['final'].size}")
    else:
        print(f"⚠️ Step 4: Cropping/padding skipped")
    
    # 5. Base64 Encoding
    if hasattr(ctx, 'result_image') and ctx.result_image:
        print(f"✅ Step 5: Image encoded to base64 - Length: {len(ctx.result_image)}")
    else:
        print(f"❌ Step 5: Base64 encoding failed")
    
    # ----------------------------------------------------------------------
    # SHOW BATCH LOGS
    # ----------------------------------------------------------------------
    if batch_logs:
        print(f"\n📝 BATCH LOGS ({len(batch_logs)} entries):")
        for i, log in enumerate(batch_logs):
            print(f"\nLog {i+1}:")
            print(json.dumps(log, indent=2))
    
    # ----------------------------------------------------------------------
    # SHOW PROCESSING LOGS
    # ----------------------------------------------------------------------
    if hasattr(ctx, 'processing_logs') and ctx.processing_logs:
        print(f"\n📜 PROCESSING LOGS ({len(ctx.processing_logs)} entries):")
        for i, log in enumerate(ctx.processing_logs[-10:]):  # Show last 10 logs
            print(f"   {i+1}. {log}")
    
    # ----------------------------------------------------------------------
    # TEST SUMMARY
    # ----------------------------------------------------------------------
    print(f"\n{'='*60}")
    
    # Determine overall status
    if hasattr(ctx, 'result_image') and ctx.result_image:
        print(f"✅ PIPELINE TEST COMPLETED SUCCESSFULLY")
        print(f"   Processing time: {processing_time:.2f}s")
        if "final" in ctx.pil_img:
            print(f"   Output image size: {ctx.pil_img['final'].size}")
    else:
        print(f"⚠️ PIPELINE TEST COMPLETED WITH WARNINGS")
        if os.getenv("SPACE_ID"):
            print(f"   Note: Limited processing expected in Zero GPU environment")
    
    print(f"{'='*60}\n")


# ----------------------------------------------------------------------
# MAIN EXECUTION
# ----------------------------------------------------------------------
if __name__ == "__main__":
    test_process_image_through_entire_pipeline()