import Dexie from 'dexie'

export const db = new Dexie('turnpike')

db.version(1).stores({
  session: 'id, token, user',
  meta: 'key',
  event: 'id',
  attendees: 'id, name, ticket_type, checked_in, deleted_at',
  departments: 'id, name, deleted_at',
  volunteers: 'id, name, department_id, checked_in, attendee_id, deleted_at',
  shifts: 'id, department_id, day, deleted_at',
  volunteer_shifts: '[volunteer_id+shift_id], volunteer_id, shift_id',
  outbox: '++id, table, op, synced_at',
})

db.version(2).stores({
  session: 'id, token, user',
  meta: 'key',
  event: 'id',
  attendees: 'id, name, ticket_type, checked_in, volunteer_token, deleted_at',
  departments: 'id, name, deleted_at',
  volunteers: 'id, name, department_id, checked_in, attendee_id, deleted_at',
  shifts: 'id, department_id, day, position, deleted_at',
  volunteer_shifts: '[volunteer_id+shift_id], volunteer_id, shift_id',
  outbox: '++id, table, op, synced_at',
})

db.version(3).stores({
  session: 'id, token, user',
  meta: 'key',
  event: 'id',
  attendees: 'id, name, ticket_type, checked_in, volunteer_token, deleted_at',
  participants: 'id, email, preferred_name, updated_at, deleted_at',
  tickets: 'id, participant_id, code, source, checked_in_at, updated_at, deleted_at',
  departments: 'id, name, deleted_at',
  volunteers: 'id, name, department_id, checked_in, attendee_id, participant_id, deleted_at',
  shifts: 'id, department_id, day, position, deleted_at',
  volunteer_shifts: '[volunteer_id+shift_id], volunteer_id, shift_id',
  outbox: '++id, table, op, synced_at',
})

db.version(4).stores({
  attendees: null,
  outbox: null,
  volunteers: 'id, name, department_id, checked_in, participant_id, deleted_at',
})

db.version(5).stores({
  volunteers: 'id, participant_id, department_id, deleted_at',
  participants: 'id, email, preferred_name, email_confirmed, updated_at, deleted_at',
})

db.version(6).stores({}).upgrade(async tx => {
  await tx.table('session').clear()
  await tx.table('meta').clear()
  await tx.table('participants').clear()
  await tx.table('tickets').clear()
  await tx.table('departments').clear()
  await tx.table('volunteers').clear()
  await tx.table('shifts').clear()
  await tx.table('volunteer_shifts').clear()
})

export async function getLastSync() {
  const m = await db.meta.get('last_sync')
  return m?.value ?? ''
}

export async function setLastSync(ts) {
  await db.meta.put({ key: 'last_sync', value: ts })
}

export async function getSession() {
  return db.session.get(1)
}

export async function saveSession(token, user) {
  await db.session.put({ id: 1, token, user })
}

export async function clearSession() {
  await db.session.clear()
  await db.meta.clear()
}