package db

const schema = `
CREATE TABLE IF NOT EXISTS volunteers (
    id          INTEGER PRIMARY KEY AUTOINCREMENT,
    name        TEXT    NOT NULL,
    email       TEXT    NOT NULL UNIQUE,
    password    TEXT    NOT NULL,
    role        TEXT    NOT NULL DEFAULT 'volunteer', -- 'admin' | 'volunteer'
    active      INTEGER NOT NULL DEFAULT 1,
    created_at  TEXT    NOT NULL DEFAULT (datetime('now')),
    updated_at  TEXT    NOT NULL DEFAULT (datetime('now'))
);

CREATE TABLE IF NOT EXISTS schedules (
    id            INTEGER PRIMARY KEY AUTOINCREMENT,
    volunteer_id  INTEGER NOT NULL REFERENCES volunteers(id),
    title         TEXT    NOT NULL,
    starts_at     TEXT    NOT NULL,
    ends_at       TEXT    NOT NULL,
    notes         TEXT,
    created_at    TEXT    NOT NULL DEFAULT (datetime('now')),
    updated_at    TEXT    NOT NULL DEFAULT (datetime('now'))
);

CREATE TABLE IF NOT EXISTS time_off_requests (
    id            INTEGER PRIMARY KEY AUTOINCREMENT,
    volunteer_id  INTEGER NOT NULL REFERENCES volunteers(id),
    starts_at     TEXT    NOT NULL,
    ends_at       TEXT    NOT NULL,
    reason        TEXT,
    status        TEXT    NOT NULL DEFAULT 'pending', -- 'pending' | 'approved' | 'rejected'
    reviewed_by   INTEGER REFERENCES volunteers(id),
    reviewed_at   TEXT,
    created_at    TEXT    NOT NULL DEFAULT (datetime('now')),
    updated_at    TEXT    NOT NULL DEFAULT (datetime('now'))
);

CREATE TABLE IF NOT EXISTS checkins (
    id            INTEGER PRIMARY KEY AUTOINCREMENT,
    volunteer_id  INTEGER NOT NULL REFERENCES volunteers(id),
    schedule_id   INTEGER REFERENCES schedules(id),
    checked_in_at TEXT    NOT NULL DEFAULT (datetime('now')),
    checked_out_at TEXT,
    notes         TEXT
);

CREATE TABLE IF NOT EXISTS notifications (
    id            INTEGER PRIMARY KEY AUTOINCREMENT,
    volunteer_id  INTEGER NOT NULL REFERENCES volunteers(id),
    message       TEXT    NOT NULL,
    read          INTEGER NOT NULL DEFAULT 0,
    created_at    TEXT    NOT NULL DEFAULT (datetime('now'))
);
`