-- RemoteRig Database Schema (SQLite)
-- Migration: 001_create_tables

-- Cameras table: registry of all GoPro cameras
CREATE TABLE IF NOT EXISTS cameras (
    camera_id                    TEXT PRIMARY KEY,
    friendly_name                TEXT NOT NULL,
    mac_address                  TEXT UNIQUE,
    battery_calibration_offset   REAL,
    created_at                   DATETIME NOT NULL DEFAULT (datetime('now')),
    updated_at                   DATETIME NOT NULL DEFAULT (datetime('now'))
);

CREATE INDEX IF NOT EXISTS idx_cameras_mac ON cameras(mac_address);

-- Status logs: every poll from an ESP8266 node
CREATE TABLE IF NOT EXISTS status_logs (
    id                  INTEGER PRIMARY KEY AUTOINCREMENT,
    camera_id           TEXT NOT NULL REFERENCES cameras(camera_id),
    recorded_at         DATETIME NOT NULL DEFAULT (datetime('now')),
    battery_pct         INTEGER,
    video_remaining_sec INTEGER,
    recording_state     INTEGER NOT NULL DEFAULT 0,
    mode                TEXT,
    resolution          TEXT,
    fps                 INTEGER,
    online              INTEGER NOT NULL DEFAULT 1,
    raw_battery_pct     REAL
);

CREATE INDEX IF NOT EXISTS idx_status_logs_camera_time
    ON status_logs(camera_id, recorded_at DESC);

-- Recording events: explicit start/stop events
CREATE TABLE IF NOT EXISTS recording_events (
    id          INTEGER PRIMARY KEY AUTOINCREMENT,
    camera_id   TEXT NOT NULL REFERENCES cameras(camera_id),
    started_at  DATETIME NOT NULL,
    stopped_at  DATETIME,
    reason      TEXT,
    duration    INTEGER
);

CREATE INDEX IF NOT EXISTS idx_recording_events_camera_time
    ON recording_events(camera_id, started_at DESC);

-- Settings: system-wide and per-camera config
CREATE TABLE IF NOT EXISTS settings (
    key        TEXT PRIMARY KEY,
    value      TEXT NOT NULL,
    updated_at DATETIME NOT NULL DEFAULT (datetime('now'))
);

-- Seed: default poll interval and thresholds
INSERT INTO settings (key, value) VALUES
    ('poll_interval_sec', '30'),
    ('low_battery_threshold', '15'),
    ('low_storage_alert_sec', '300');