// IA Gen Maturity Evaluator - Prisma Schema
// SQLite for local dev; switch to Postgres for production

generator client {
  provider = "prisma-client-js"
}

datasource db {
  provider = "sqlite"
  url      = env("DATABASE_URL")
}

model User {
  id        String   @id @default(cuid())
  email     String   @unique
  name      String?
  role      String   @default("evaluator") // evaluator | admin
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
}

model Template {
  id          String   @id // "full-15"
  name        String
  dimensions  TemplateDimension[]
  evaluations Evaluation[]
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt
}

model TemplateDimension {
  id             String   @id @default(cuid())
  templateId     String
  template       Template @relation(fields: [templateId], references: [id], onDelete: Cascade)
  slug             String   // "tools", "prompts", etc.
  orderIndex       Int
  title            String
  rubric           String   // "1:X;2:Y;3:Z;4:A;5:B" or "1-5"
  suggestedQuestions String? // JSON array: ["Q1", "Q2", "Q3"]
  dimensionScores  DimensionScore[]

  @@unique([templateId, slug])
}

model Evaluation {
  id              String   @id @default(cuid())
  candidateName   String
  candidateRole   String
  evaluatorName  String
  evaluationDate DateTime
  templateId     String
  template       Template @relation(fields: [templateId], references: [id])
  status         String   @default("draft") // draft | submitted
  findings       String?  // auto-generated summary
  recommendations String?
  dimensionScores DimensionScore[]
  auditLogs      AuditLog[]
  createdAt      DateTime @default(now())
  updatedAt      DateTime @updatedAt
}

model DimensionScore {
  id             String   @id @default(cuid())
  evaluationId   String
  evaluation     Evaluation @relation(fields: [evaluationId], references: [id], onDelete: Cascade)
  dimensionId    String
  dimension      TemplateDimension @relation(fields: [dimensionId], references: [id], onDelete: Cascade)
  score          Int?     // 1-5
  justification  String?
  examplesObserved String?
  confidence     String?  // low | med | high
  candidateNotes String?  // evaluator's notes from interview
  createdAt      DateTime @default(now())
  updatedAt      DateTime @updatedAt

  @@unique([evaluationId, dimensionId])
}

model AuditLog {
  id           String   @id @default(cuid())
  evaluationId String
  evaluation   Evaluation @relation(fields: [evaluationId], references: [id], onDelete: Cascade)
  action       String   // created | updated | submitted | score_changed
  field        String?
  oldValue     String?
  newValue     String?
  userId       String?
  createdAt    DateTime @default(now())
}