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feat: implement StaySense MVP backend, frontend, imports, and deployment docs

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Oliver 2026-02-15 13:08:56 +01:00
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backend/db.py Normal file
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import sqlite3
from pathlib import Path
BASE_DIR = Path(__file__).resolve().parent.parent
DB_PATH = BASE_DIR / "data" / "staysense.db"
def get_conn() -> sqlite3.Connection:
conn = sqlite3.connect(DB_PATH)
conn.row_factory = sqlite3.Row
conn.execute("PRAGMA foreign_keys = ON")
return conn
def init_db() -> None:
DB_PATH.parent.mkdir(parents=True, exist_ok=True)
with get_conn() as conn:
conn.executescript(
"""
CREATE TABLE IF NOT EXISTS spot (
id TEXT PRIMARY KEY,
lat REAL NOT NULL,
lon REAL NOT NULL,
osm_area_type TEXT NOT NULL CHECK (osm_area_type IN ('residential', 'industrial', 'commercial', 'parking', 'nature')),
road_type TEXT NOT NULL CHECK (road_type IN ('residential', 'primary', 'secondary', 'service', 'unknown')),
distance_police_m INTEGER NOT NULL,
distance_fire_m INTEGER NOT NULL,
distance_hospital_m INTEGER NOT NULL,
created_at TEXT NOT NULL,
updated_at TEXT NOT NULL
);
CREATE TABLE IF NOT EXISTS local_event (
id TEXT PRIMARY KEY,
spot_id TEXT NOT NULL,
event_type TEXT NOT NULL CHECK (event_type IN ('market', 'waste', 'event', 'construction')),
start_datetime TEXT NOT NULL,
end_datetime TEXT NOT NULL,
risk_modifier INTEGER NOT NULL,
source TEXT NOT NULL,
created_at TEXT NOT NULL,
FOREIGN KEY (spot_id) REFERENCES spot(id) ON DELETE CASCADE
);
CREATE TABLE IF NOT EXISTS community_signal (
id TEXT PRIMARY KEY,
spot_id TEXT NOT NULL,
signal_type TEXT NOT NULL CHECK (signal_type IN ('calm', 'noise', 'knock', 'police')),
hashed_device TEXT NOT NULL,
timestamp TEXT NOT NULL,
day_bucket TEXT NOT NULL,
FOREIGN KEY (spot_id) REFERENCES spot(id) ON DELETE CASCADE
);
CREATE TABLE IF NOT EXISTS osm_poi (
id TEXT PRIMARY KEY,
poi_type TEXT NOT NULL CHECK (poi_type IN ('police', 'fire', 'hospital')),
lat REAL NOT NULL,
lon REAL NOT NULL,
source TEXT NOT NULL,
imported_at TEXT NOT NULL
);
CREATE TABLE IF NOT EXISTS osm_zone (
id TEXT PRIMARY KEY,
zone_type TEXT NOT NULL CHECK (zone_type IN ('residential', 'industrial', 'commercial', 'parking', 'nature')),
lat REAL NOT NULL,
lon REAL NOT NULL,
source TEXT NOT NULL,
imported_at TEXT NOT NULL
);
CREATE TABLE IF NOT EXISTS osm_road (
id TEXT PRIMARY KEY,
road_type TEXT NOT NULL CHECK (road_type IN ('residential', 'primary', 'secondary', 'service')),
lat REAL NOT NULL,
lon REAL NOT NULL,
source TEXT NOT NULL,
imported_at TEXT NOT NULL
);
CREATE TABLE IF NOT EXISTS open_data_event (
id TEXT PRIMARY KEY,
event_type TEXT NOT NULL CHECK (event_type IN ('market', 'waste', 'event', 'construction')),
lat REAL NOT NULL,
lon REAL NOT NULL,
start_datetime TEXT NOT NULL,
end_datetime TEXT NOT NULL,
risk_modifier INTEGER NOT NULL,
source TEXT NOT NULL,
imported_at TEXT NOT NULL
);
CREATE TABLE IF NOT EXISTS data_source_state (
source_name TEXT PRIMARY KEY,
imported_at TEXT NOT NULL,
record_count INTEGER NOT NULL,
notes TEXT NOT NULL
);
CREATE INDEX IF NOT EXISTS idx_signal_spot_timestamp
ON community_signal (spot_id, timestamp);
CREATE UNIQUE INDEX IF NOT EXISTS ux_signal_spot_device_day
ON community_signal (spot_id, hashed_device, day_bucket);
CREATE INDEX IF NOT EXISTS idx_local_event_spot_window
ON local_event (spot_id, start_datetime, end_datetime);
CREATE INDEX IF NOT EXISTS idx_osm_poi_type
ON osm_poi (poi_type);
CREATE INDEX IF NOT EXISTS idx_osm_zone_type
ON osm_zone (zone_type);
CREATE INDEX IF NOT EXISTS idx_open_data_event_window
ON open_data_event (start_datetime, end_datetime);
CREATE INDEX IF NOT EXISTS idx_open_data_event_source
ON open_data_event (source);
"""
)