auth, trips and join trips

prisma/schema.prisma

@@ -0,0 +1,68 @@
+generator client {
+  provider = "prisma-client"
+  output   = "../app/generated/prisma"
+}
+
+datasource db {
+  provider = "postgresql"
+}
+
+model User {
+  id        String   @id @default(cuid())
+  name      String
+  email     String   @unique
+  password  String
+  image     String?
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+
+  trips          Trip[]
+  participations TripParticipant[]
+}
+
+model Trip {
+  id              String     @id @default(cuid())
+  title           String
+  description     String?
+  mountain        String
+  location        String
+  date            DateTime
+  maxParticipants Int
+  price           Int
+  image           String?
+  status          TripStatus @default(OPEN)
+  createdAt       DateTime   @default(now())
+  updatedAt       DateTime   @updatedAt
+
+  organizerId String
+  organizer   User @relation(fields: [organizerId], references: [id])
+
+  participants TripParticipant[]
+}
+
+model TripParticipant {
+  id        String            @id @default(cuid())
+  status    ParticipantStatus @default(PENDING)
+  createdAt DateTime          @default(now())
+
+  tripId String
+  trip   Trip @relation(fields: [tripId], references: [id])
+
+  userId String
+  user   User @relation(fields: [userId], references: [id])
+
+  @@unique([tripId, userId])
+}
+
+enum TripStatus {
+  OPEN
+  FULL
+  CLOSED
+  COMPLETED
+}
+
+enum ParticipantStatus {
+  PENDING
+  CONFIRMED
+  CANCELLED
+}