### Prisma Schema Definition

Source: https://github.com/skn0tt/prisma-erd/blob/master/src/index.html

This snippet contains the full Prisma schema definition for the project. It outlines the database structure, including models for users, sessions, calendars, meetings, schedules, and bookings, along with their respective fields, relationships, and enum types.

```prisma
datasource db {
  provider = "postgres"
  url = env("DATABASE_URL")
}

model User {
  id Int @id @default(autoincrement())
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
  name String
  username String @unique
  email String @unique
  hashedPassword String?
  role String @default("user")
  sessions Session[]
  calendars ConnectedCalendar[]
  Meeting Meeting[]
  Schedule Schedule[]
  DefaultCalendar DefaultCalendar[]
}

model DefaultCalendar {
  id Int @id @default(autoincrement())
  userId Int @unique
  user User @relation(fields: [userId], references: [id])
  calendarId Int
  calendar ConnectedCalendar @relation(fields: [calendarId], references: [id])
}

model Session {
  id Int @id @default(autoincrement())
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
  expiresAt DateTime?
  handle String @unique
  user User? @relation(fields: [userId], references: [id])
  userId Int?
  hashedSessionToken String?
  antiCSRFToken String?
  publicData String?
  privateData String?
}

enum ConnectedCalendarStatus {
  active
}

enum ConnectedCalendarType {
  CaldavDigest
  CaldavBasic
  GoogleCalendar
  OutlookCalendar
}

model ConnectedCalendar {
  id Int @id @default(autoincrement())
  name String
  caldavAddress String?
  username String?
  encryptedPassword String?
  refreshToken String?
  owner User @relation(fields: [ownerId], references: [id])
  ownerId Int
  status ConnectedCalendarStatus
  type ConnectedCalendarType
  DefaultCalendar DefaultCalendar[]
  Meeting Meeting[]
}

model Meeting {
  id Int @id @default(autoincrement())
  name String
  link String
  owner User @relation(fields: [ownerName], references: [username])
  ownerName String
  description String
  duration Int
  startDateUTC DateTime
  endDateUTC DateTime
  schedule Schedule @relation(fields: [scheduleId], references: [id])
  scheduleId Int
  location String
  bookings Booking[]
  defaultConnectedCalendar ConnectedCalendar @relation(fields: [defaultConnectedCalendarId], references: [id])
  defaultConnectedCalendarId Int
}

model DailySchedule {
  id Int @id @default(autoincrement())
  day String
  startTime String
  endTime String
  schedule Schedule @relation(fields: [scheduleId], references: [id])
  scheduleId Int
}

model Schedule {
  id Int @id @default(autoincrement())
  name String
  timezone String
  dailySchedules DailySchedule[]
  owner User @relation(fields: [ownerId], references: [id])
  ownerId Int
  Meeting Meeting[]
}

model Booking {
  id Int @id @default(autoincrement())
  meeting Meeting @relation(fields: [meetingId], references: [id])
  meetingId Int
  inviteeEmail String
  startDateUTC DateTime
  cancelCode String
}
```

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