#!/usr/bin/env python3
"""
Mock S-57 Parser for testing when GDAL is not available
Generates realistic test data for integration tests
"""
import json
import sys
import os
from pathlib import Path
def generate_mock_features(file_path):
"""Generate mock S-57 features based on file name"""
base_name = Path(file_path).stem
# Default coordinates (San Diego area)
center_lon = -117.2279
center_lat = 32.7144
# Generate different features based on chart ID patterns
features = []
# Add depth area feature
features.append({
"type": "Feature",
"id": f"{base_name}_DEPARE_001",
"geometry": {
"type": "Polygon",
"coordinates": [[
[center_lon - 0.01, center_lat - 0.01],
[center_lon + 0.01, center_lat - 0.01],
[center_lon + 0.01, center_lat + 0.01],
[center_lon - 0.01, center_lat + 0.01],
[center_lon - 0.01, center_lat - 0.01]
]]
},
"properties": {
"_featureType": "DEPARE",
"DRVAL1": 5.0,
"DRVAL2": 10.0,
"OBJNAM": "Shallow Water Area"
}
})
# Add navigation light
features.append({
"type": "Feature",
"id": f"{base_name}_LIGHTS_001",
"geometry": {
"type": "Point",
"coordinates": [center_lon, center_lat]
},
"properties": {
"_featureType": "LIGHTS",
"LITCHR": "2", # Flashing
"SIGPER": 4.0,
"COLOUR": "1,3", # White, Red
"VALNMR": 15.0,
"OBJNAM": "Harbor Light"
}
})
# Add depth contour
features.append({
"type": "Feature",
"id": f"{base_name}_DEPCNT_001",
"geometry": {
"type": "LineString",
"coordinates": [
[center_lon - 0.02, center_lat],
[center_lon - 0.01, center_lat + 0.005],
[center_lon, center_lat],
[center_lon + 0.01, center_lat - 0.005],
[center_lon + 0.02, center_lat]
]
},
"properties": {
"_featureType": "DEPCNT",
"VALDCO": 10.0
}
})
# Add soundings
for i in range(3):
features.append({
"type": "Feature",
"id": f"{base_name}_SOUNDG_{i:03d}",
"geometry": {
"type": "Point",
"coordinates": [
center_lon + (i - 1) * 0.005,
center_lat + (i - 1) * 0.003
]
},
"properties": {
"_featureType": "SOUNDG",
"VALSOU": 8.5 + i * 2.0
}
})
# Add lateral buoy
features.append({
"type": "Feature",
"id": f"{base_name}_BOYLAT_001",
"geometry": {
"type": "Point",
"coordinates": [center_lon + 0.005, center_lat + 0.005]
},
"properties": {
"_featureType": "BOYLAT",
"COLOUR": "3", # Red
"BOYSHP": 1, # Conical
"OBJNAM": "Red Nun #2"
}
})
return {
"type": "FeatureCollection",
"features": features
}
def main():
if len(sys.argv) < 2:
print("Error: No file path provided", file=sys.stderr)
sys.exit(1)
file_path = sys.argv[1]
# Check if file exists (for realism)
if not os.path.exists(file_path):
print(f"Error: File not found: {file_path}", file=sys.stderr)
sys.exit(1)
# Generate mock data
result = generate_mock_features(file_path)
# Output as JSON
print(json.dumps(result, indent=2))
if __name__ == "__main__":
main()
