#!/usr/bin/env python3 """ Seed Script: India Emergency Data via Overpass API Generates blood banks, police stations, and fire stations for 25 cities. Run: python scripts/seed_emergency_data.py Output: datasets/emergency/blood_banks/india_blood_banks.json datasets/emergency/hospitals/india_hospitals_top25.json datasets/police/stations/india_police_stations.json """ import asyncio import json import sys import time from pathlib import Path try: import httpx except ImportError: print("Install httpx: pip install httpx") sys.exit(1) OVERPASS_URLS = [ "https://overpass-api.de/api/interpreter", "https://overpass.kumi.systems/api/interpreter", ] # Top 25 India cities with bounding boxes [south, west, north, east] CITIES = { "chennai": [12.8, 80.1, 13.3, 80.4], "mumbai": [18.8, 72.7, 19.3, 73.0], "delhi": [28.4, 76.9, 28.9, 77.4], "bengaluru": [12.8, 77.4, 13.2, 77.8], "hyderabad": [17.2, 78.3, 17.6, 78.6], "kolkata": [22.4, 88.2, 22.7, 88.5], "pune": [18.4, 73.7, 18.6, 74.0], "ahmedabad": [22.9, 72.4, 23.2, 72.7], "jaipur": [26.8, 75.7, 27.0, 75.9], "lucknow": [26.7, 80.8, 27.0, 81.1], "surat": [21.1, 72.7, 21.3, 73.0], "nagpur": [21.0, 78.9, 21.3, 79.2], "patna": [25.5, 85.0, 25.7, 85.2], "indore": [22.6, 75.7, 22.8, 75.9], "bhopal": [23.1, 77.3, 23.3, 77.5], "coimbatore": [10.9, 76.8, 11.1, 77.1], "visakhapatnam": [17.6, 83.1, 17.8, 83.3], "kochi": [9.9, 76.2, 10.1, 76.4], "vadodara": [22.2, 73.1, 22.4, 73.3], "amritsar": [31.6, 74.8, 31.7, 74.9], "ranchi": [23.2, 85.2, 23.5, 85.4], "chandigarh": [30.6, 76.7, 30.8, 76.9], "guwahati": [26.1, 91.6, 26.2, 91.9], "bhubaneswar": [20.2, 85.7, 20.4, 85.9], "thiruvananthapuram": [8.4, 76.8, 8.6, 77.0], } async def query_overpass(query: str, retries: int = 3) -> dict: """Execute Overpass query with retry across multiple endpoints.""" headers = { "User-Agent": "SafeVixAI/2.0 Emergency Data Seeder (contact@safevixai.in)", "Accept": "application/json", } async with httpx.AsyncClient(timeout=60, headers=headers) as client: for attempt in range(retries): for url in OVERPASS_URLS: try: resp = await client.post(url, data={"data": query}) resp.raise_for_status() return resp.json() except Exception as e: print(f" [WARN] {url} failed: {e}") await asyncio.sleep(2) return {"elements": []} def build_query(bbox: list, amenity_filter: str) -> str: s, w, n, e = bbox return f""" [out:json][timeout:30]; ( node[{amenity_filter}]({s},{w},{n},{e}); way[{amenity_filter}]({s},{w},{n},{e}); ); out center tags; """.strip() def extract_elements(data: dict, city: str, category: str) -> list: items = [] for el in data.get("elements", []): tags = el.get("tags", {}) lat = el.get("lat") or el.get("center", {}).get("lat") lon = el.get("lon") or el.get("center", {}).get("lon") if lat is None or lon is None: continue items.append({ "id": f"{city}-{el['id']}", "name": tags.get("name") or f"{category.title()} ({city})", "category": category, "city": city, "lat": float(lat), "lon": float(lon), "phone": tags.get("phone") or tags.get("contact:phone"), "address": ", ".join(filter(None, [ tags.get("addr:housenumber"), tags.get("addr:street"), tags.get("addr:suburb"), tags.get("addr:city") or city.title(), ])) or None, "is_24hr": tags.get("opening_hours") == "24/7", "source": "overpass", }) return items async def seed_blood_banks(): """Seed India blood banks from Overpass OSM data.""" print("\n[BLOOD BANKS] Seeding blood banks...") all_items = [] for city, bbox in CITIES.items(): query = build_query(bbox, 'amenity="blood_bank"') data = await query_overpass(query) items = extract_elements(data, city, "blood_bank") all_items.extend(items) print(f" {city}: {len(items)} blood banks") await asyncio.sleep(1) # Rate limit out_path = Path(__file__).parents[2] / "datasets" / "emergency" / "blood_banks" / "india_blood_banks.json" out_path.parent.mkdir(parents=True, exist_ok=True) with open(out_path, "w") as f: json.dump(all_items, f, indent=2) print(f"[OK] Saved {len(all_items)} blood banks -> {out_path}") async def seed_police_stations(): """Seed India police stations from Overpass OSM data.""" print("\n[POLICE] Seeding police stations...") all_items = [] for city, bbox in CITIES.items(): query = build_query(bbox, 'amenity="police"') data = await query_overpass(query) items = extract_elements(data, city, "police") all_items.extend(items) print(f" {city}: {len(items)} police stations") await asyncio.sleep(1) out_path = Path(__file__).parents[2] / "datasets" / "police" / "stations" / "india_police_stations.json" out_path.parent.mkdir(parents=True, exist_ok=True) with open(out_path, "w") as f: json.dump(all_items, f, indent=2) print(f"[OK] Saved {len(all_items)} police stations -> {out_path}") async def seed_fire_stations(): """Seed India fire stations from Overpass OSM data.""" print("\n[FIRE] Seeding fire stations...") all_items = [] for city, bbox in CITIES.items(): query = build_query(bbox, 'amenity="fire_station"') data = await query_overpass(query) items = extract_elements(data, city, "fire") all_items.extend(items) print(f" {city}: {len(items)} fire stations") await asyncio.sleep(1) out_path = Path(__file__).parents[2] / "datasets" / "emergency" / "hospitals" / "india_fire_stations.json" out_path.parent.mkdir(parents=True, exist_ok=True) with open(out_path, "w") as f: json.dump(all_items, f, indent=2) print(f"[OK] Saved {len(all_items)} fire stations -> {out_path}") async def seed_hospitals(): """Seed top-tier India hospitals with trauma/ICU flags.""" print("\n[HOSPITALS] Seeding hospitals...") all_items = [] for city, bbox in CITIES.items(): query = build_query(bbox, 'amenity="hospital"') data = await query_overpass(query) items = extract_elements(data, city, "hospital") # Tag trauma centres and ICU hospitals for item in items: name_lower = item["name"].lower() item["has_trauma"] = "trauma" in name_lower or "aiims" in name_lower item["has_icu"] = "icu" in name_lower or "government" in name_lower all_items.extend(items) print(f" {city}: {len(items)} hospitals") await asyncio.sleep(1) out_path = Path(__file__).parents[2] / "datasets" / "emergency" / "hospitals" / "india_hospitals_top25.json" out_path.parent.mkdir(parents=True, exist_ok=True) with open(out_path, "w") as f: json.dump(all_items, f, indent=2) print(f"[OK] Saved {len(all_items)} hospitals -> {out_path}") async def main(): start = time.time() await seed_blood_banks() await seed_police_stations() await seed_fire_stations() await seed_hospitals() elapsed = time.time() - start print(f"\n[DONE] All seeding done in {elapsed:.1f}s") if __name__ == "__main__": asyncio.run(main())