from osgeo import gdal
import numpy as np
from pathlib import Path

print("="*70)
print("CHECKING INDIVIDUAL TILES")
print("="*70)

# Check individual tiles
base = Path(r"C:\Users\timon\Resilience BV\4020 SCane ESA DEMO - Documenten\General\4020 SCDEMO Team\4020 TechnicalData\WP3\smartcane_v2\smartcane\laravel_app\storage\app\aura\cloud_test_single_images\2025-10-17")
tiles = [x for x in base.iterdir() if x.is_dir()]
print(f"\nTotal tiles: {len(tiles)}")

good_tiles = 0
empty_tiles = 0

for t in tiles:
    tif = t / 'response.tiff'
    if tif.exists():
        ds = gdal.Open(str(tif))
        r = ds.GetRasterBand(1).ReadAsArray()
        pct = (r > 0).sum() / r.size * 100
        mean_val = r[r > 0].mean() if (r > 0).sum() > 0 else 0
        
        if pct > 10:
            good_tiles += 1
            print(f"  ✓ Tile {t.name[:8]}... : {pct:5.1f}% non-zero, mean={mean_val:.3f}")
        elif pct > 0:
            print(f"  ~ Tile {t.name[:8]}... : {pct:5.1f}% non-zero (sparse)")
        else:
            empty_tiles += 1

print(f"\nSummary: {good_tiles} good tiles, {empty_tiles} completely empty tiles")

print("\n" + "="*70)
print("CHECKING MERGED TIF")
print("="*70)

tif_path = r"C:\Users\timon\Resilience BV\4020 SCane ESA DEMO - Documenten\General\4020 SCDEMO Team\4020 TechnicalData\WP3\smartcane_v2\smartcane\laravel_app\storage\app\aura\cloud_test_merged_tif\2025-10-17.tif"

ds = gdal.Open(tif_path)
print(f"\nFile: 2025-10-17.tif")
print(f"Size: {ds.RasterXSize} x {ds.RasterYSize}")
print(f"Bands: {ds.RasterCount}")

red = ds.GetRasterBand(1).ReadAsArray()
print(f"\nRed band:")
print(f"  Non-zero pixels: {(red > 0).sum() / red.size * 100:.2f}%")
print(f"  Mean (all): {red.mean():.6f}")
print(f"  Mean (non-zero): {red[red > 0].mean():.4f}")
print(f"  Max: {red.max():.4f}")

print("\n" + "="*70)
print("DIAGNOSIS")
print("="*70)
print("\nThe problem: Most tiles are EMPTY (outside Planet imagery footprint)")
print("When merged, empty tiles dominate, making the image appear almost black.")
print("\nSolution: Use tighter bounding boxes or single bbox for the actual fields.")