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

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

// ==================== USER ROLES (dynamicke) ====================

model UserRole {
  id          String   @id @default(cuid())
  code        String   @unique
  name        String
  description String?

  permissions Json

  level       Int
  order       Int      @default(0)
  active      Boolean  @default(true)

  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt

  users       User[]

  @@index([active])
  @@index([level])
}

// ==================== USERS ====================

model User {
  id        String   @id @default(cuid())
  email     String   @unique
  password  String
  name      String

  roleId    String
  role      UserRole @relation(fields: [roleId], references: [id])

  active    Boolean  @default(true)

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  ownedProjects      Project[]           @relation("ProjectOwner")
  assignedProjects   ProjectMember[]
  createdTasks       Task[]              @relation("TaskCreator")
  assignedTasks      TaskAssignee[]
  reminders          Reminder[]
  activityLogs       ActivityLog[]

  createdEquipment   Equipment[]         @relation("EquipmentCreator")
  performedRevisions Revision[]
  uploadedEquipmentFiles EquipmentAttachment[]

  assignedRMAs       RMA[]               @relation("RMAAssignee")
  createdRMAs        RMA[]               @relation("RMACreator")
  approvedRMAs       RMA[]               @relation("RMAApprover")
  rmaAttachments     RMAAttachment[]
  rmaStatusChanges   RMAStatusHistory[]
  rmaComments        RMAComment[]
  taskComments       Comment[]
  taskAttachments    TaskAttachment[]    @relation("TaskAttachmentUploader")

  createdCustomers   Customer[]

  @@index([email])
  @@index([roleId])
  @@index([active])
}

// ==================== CONFIGURATION TABLES ====================

model EquipmentType {
  id          String      @id @default(cuid())
  code        String      @unique
  name        String
  description String?
  color       String?
  icon        String?
  order       Int         @default(0)
  active      Boolean     @default(true)

  createdAt   DateTime    @default(now())
  updatedAt   DateTime    @updatedAt

  equipment   Equipment[]

  @@index([active])
  @@index([order])
}

model RevisionType {
  id              String    @id @default(cuid())
  code            String    @unique
  name            String
  intervalDays    Int
  reminderDays    Int       @default(14)
  color           String?
  description     String?
  order           Int       @default(0)
  active          Boolean   @default(true)

  createdAt       DateTime  @default(now())
  updatedAt       DateTime  @updatedAt

  revisions       Revision[]

  @@index([active])
  @@index([order])
}

model RMAStatus {
  id          String    @id @default(cuid())
  code        String    @unique
  name        String
  description String?
  color       String?
  icon        String?
  order       Int       @default(0)

  isInitial   Boolean   @default(false)
  isFinal     Boolean   @default(false)
  canTransitionTo Json?

  active      Boolean   @default(true)

  createdAt   DateTime  @default(now())
  updatedAt   DateTime  @updatedAt

  rmas        RMA[]

  @@index([active])
  @@index([order])
  @@index([isInitial])
  @@index([isFinal])
}

model RMASolution {
  id          String    @id @default(cuid())
  code        String    @unique
  name        String
  description String?
  color       String?
  order       Int       @default(0)
  active      Boolean   @default(true)

  createdAt   DateTime  @default(now())
  updatedAt   DateTime  @updatedAt

  rmas        RMA[]

  @@index([active])
  @@index([order])
}

model TaskStatus {
  id          String    @id @default(cuid())
  code        String    @unique
  name        String
  description String?
  color       String?
  icon        String?
  order       Int       @default(0)

  swimlaneColumn String?

  isInitial   Boolean   @default(false)
  isFinal     Boolean   @default(false)
  canTransitionTo Json?

  active      Boolean   @default(true)

  createdAt   DateTime  @default(now())
  updatedAt   DateTime  @updatedAt

  tasks       Task[]
  projects    Project[]

  @@index([active])
  @@index([swimlaneColumn])
  @@index([order])
}

model Priority {
  id          String    @id @default(cuid())
  code        String    @unique
  name        String
  description String?
  color       String?
  icon        String?
  level       Int
  order       Int       @default(0)
  active      Boolean   @default(true)

  createdAt   DateTime  @default(now())
  updatedAt   DateTime  @updatedAt

  tasks       Task[]

  @@index([active])
  @@index([level])
  @@index([order])
}

model Tag {
  id          String    @id @default(cuid())
  code        String    @unique
  name        String
  description String?
  color       String?

  entityType  String

  order       Int       @default(0)
  active      Boolean   @default(true)

  createdAt   DateTime  @default(now())
  updatedAt   DateTime  @updatedAt

  projectTags   ProjectTag[]
  taskTags      TaskTag[]
  equipmentTags EquipmentTag[]
  rmaTags       RMATag[]

  @@index([entityType])
  @@index([active])
}

model SystemSetting {
  id          String    @id @default(cuid())

  key         String    @unique
  value       Json

  category    String
  label       String
  description String?
  dataType    String

  validation  Json?

  createdAt   DateTime  @default(now())
  updatedAt   DateTime  @updatedAt

  @@index([category])
}

// ==================== CUSTOMERS ====================

model Customer {
  id        String   @id @default(cuid())

  name      String
  address   String?
  email     String?
  phone     String?
  ico       String?
  dic       String?
  icdph     String?

  contactPerson String?
  contactEmail  String?
  contactPhone  String?

  externalId    String?  @unique
  externalSource String?

  notes     String?
  active    Boolean  @default(true)

  createdById String
  createdBy   User   @relation(fields: [createdById], references: [id])

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  projects  Project[]
  equipment Equipment[]
  rmas      RMA[]

  @@index([name])
  @@index([ico])
  @@index([externalId])
  @@index([active])
}

// ==================== PROJECTS ====================

model Project {
  id          String      @id @default(cuid())
  name        String
  description String?

  customerId  String?
  customer    Customer?   @relation(fields: [customerId], references: [id])

  ownerId     String
  owner       User        @relation("ProjectOwner", fields: [ownerId], references: [id])

  statusId    String
  status      TaskStatus  @relation(fields: [statusId], references: [id])

  softDeadline DateTime?
  hardDeadline DateTime?

  createdAt   DateTime    @default(now())
  updatedAt   DateTime    @updatedAt
  completedAt DateTime?

  tasks       Task[]
  members     ProjectMember[]
  tags        ProjectTag[]

  @@index([ownerId])
  @@index([statusId])
  @@index([customerId])
  @@index([hardDeadline])
}

model ProjectMember {
  id        String   @id @default(cuid())
  projectId String
  userId    String

  project   Project  @relation(fields: [projectId], references: [id], onDelete: Cascade)
  user      User     @relation(fields: [userId], references: [id], onDelete: Cascade)

  addedAt   DateTime @default(now())

  @@unique([projectId, userId])
  @@index([projectId])
  @@index([userId])
}

model ProjectTag {
  projectId String
  tagId     String
  project   Project @relation(fields: [projectId], references: [id], onDelete: Cascade)
  tag       Tag     @relation(fields: [tagId], references: [id], onDelete: Cascade)

  @@id([projectId, tagId])
}

// ==================== TASKS ====================

model Task {
  id          String      @id @default(cuid())
  title       String
  description String?

  projectId   String?
  project     Project?    @relation(fields: [projectId], references: [id], onDelete: Cascade)

  parentId    String?
  parent      Task?       @relation("SubTasks", fields: [parentId], references: [id], onDelete: Cascade)
  subTasks    Task[]      @relation("SubTasks")

  statusId    String
  status      TaskStatus  @relation(fields: [statusId], references: [id])

  priorityId  String
  priority    Priority    @relation(fields: [priorityId], references: [id])

  deadline    DateTime?
  createdAt   DateTime    @default(now())
  updatedAt   DateTime    @updatedAt
  completedAt DateTime?

  createdById String
  createdBy   User        @relation("TaskCreator", fields: [createdById], references: [id])

  assignees   TaskAssignee[]
  reminders   Reminder[]
  comments    Comment[]
  tags        TaskTag[]
  attachments TaskAttachment[]

  @@index([projectId])
  @@index([parentId])
  @@index([statusId])
  @@index([priorityId])
  @@index([deadline])
  @@index([createdById])
}

model TaskAssignee {
  id        String   @id @default(cuid())
  taskId    String
  userId    String

  task      Task     @relation(fields: [taskId], references: [id], onDelete: Cascade)
  user      User     @relation(fields: [userId], references: [id], onDelete: Cascade)

  assignedAt DateTime @default(now())

  @@unique([taskId, userId])
  @@index([taskId])
  @@index([userId])
}

model TaskTag {
  taskId String
  tagId  String
  task   Task @relation(fields: [taskId], references: [id], onDelete: Cascade)
  tag    Tag  @relation(fields: [tagId], references: [id], onDelete: Cascade)

  @@id([taskId, tagId])
}

model TaskAttachment {
  id          String    @id @default(cuid())
  taskId      String
  task        Task      @relation(fields: [taskId], references: [id], onDelete: Cascade)

  filename    String
  filepath    String
  mimetype    String
  size        Int

  uploadedById String
  uploadedBy   User     @relation("TaskAttachmentUploader", fields: [uploadedById], references: [id])

  uploadedAt  DateTime  @default(now())

  @@index([taskId])
}

model Reminder {
  id        String    @id @default(cuid())
  taskId    String
  userId    String

  task      Task      @relation(fields: [taskId], references: [id], onDelete: Cascade)
  user      User      @relation(fields: [userId], references: [id], onDelete: Cascade)

  remindAt  DateTime
  snoozedUntil DateTime?
  dismissed Boolean   @default(false)

  message   String?

  createdAt DateTime  @default(now())

  @@index([userId, remindAt])
  @@index([taskId])
}

model Comment {
  id        String   @id @default(cuid())
  taskId    String
  userId    String

  task      Task     @relation(fields: [taskId], references: [id], onDelete: Cascade)
  user      User     @relation(fields: [userId], references: [id])

  content   String

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  @@index([taskId])
  @@index([userId])
  @@index([createdAt])
}

// ==================== EQUIPMENT MANAGEMENT ====================

model Equipment {
  id          String    @id @default(cuid())

  name        String

  typeId      String
  type        EquipmentType @relation(fields: [typeId], references: [id])

  brand       String?
  model       String?

  customerId  String?
  customer    Customer? @relation(fields: [customerId], references: [id])

  address     String
  location    String?

  partNumber  String?
  serialNumber String?

  installDate DateTime?
  warrantyEnd DateTime?
  warrantyStatus String?

  description String?
  notes       String?

  active      Boolean   @default(true)

  createdById String
  createdBy   User      @relation("EquipmentCreator", fields: [createdById], references: [id])

  createdAt   DateTime  @default(now())
  updatedAt   DateTime  @updatedAt

  revisions   Revision[]
  attachments EquipmentAttachment[]
  tags        EquipmentTag[]

  @@index([typeId])
  @@index([customerId])
  @@index([warrantyEnd])
  @@index([active])
  @@index([createdById])
}

model Revision {
  id            String       @id @default(cuid())

  equipmentId   String
  equipment     Equipment    @relation(fields: [equipmentId], references: [id], onDelete: Cascade)

  typeId        String
  type          RevisionType @relation(fields: [typeId], references: [id])

  performedDate DateTime
  nextDueDate   DateTime?

  performedById String
  performedBy   User         @relation(fields: [performedById], references: [id])

  findings      String?
  result        String?
  notes         String?

  reminderSent  Boolean      @default(false)
  reminderDate  DateTime?

  createdAt     DateTime     @default(now())
  updatedAt     DateTime     @updatedAt

  @@index([equipmentId])
  @@index([typeId])
  @@index([performedById])
  @@index([nextDueDate])
  @@index([reminderDate])
}

model EquipmentAttachment {
  id          String    @id @default(cuid())
  equipmentId String
  equipment   Equipment @relation(fields: [equipmentId], references: [id], onDelete: Cascade)

  filename    String
  filepath    String
  mimetype    String
  size        Int

  uploadedById String
  uploadedBy   User     @relation(fields: [uploadedById], references: [id])

  uploadedAt  DateTime  @default(now())

  @@index([equipmentId])
}

model EquipmentTag {
  equipmentId String
  tagId       String
  equipment   Equipment @relation(fields: [equipmentId], references: [id], onDelete: Cascade)
  tag         Tag       @relation(fields: [tagId], references: [id], onDelete: Cascade)

  @@id([equipmentId, tagId])
}

// ==================== RMA (REKLAMACIE) ====================

model RMA {
  id          String      @id @default(cuid())

  rmaNumber   String      @unique

  customerId  String?
  customer    Customer?   @relation(fields: [customerId], references: [id])

  customerName    String?
  customerAddress String?
  customerEmail   String?
  customerPhone   String?
  customerICO     String?
  submittedBy     String

  productName     String
  invoiceNumber   String?
  purchaseDate    DateTime?
  productNumber   String?
  serialNumber    String?
  accessories     String?

  issueDescription String

  statusId        String
  status          RMAStatus @relation(fields: [statusId], references: [id])

  proposedSolutionId String?
  proposedSolution   RMASolution? @relation(fields: [proposedSolutionId], references: [id])

  requiresApproval Boolean  @default(false)
  approvedById     String?
  approvedBy       User?    @relation("RMAApprover", fields: [approvedById], references: [id])
  approvedAt       DateTime?

  receivedDate    DateTime?
  receivedLocation String?
  internalNotes   String?

  resolutionDate  DateTime?
  resolutionNotes String?

  assignedToId    String?
  assignedTo      User?     @relation("RMAAssignee", fields: [assignedToId], references: [id])

  createdById     String
  createdBy       User      @relation("RMACreator", fields: [createdById], references: [id])

  createdAt       DateTime  @default(now())
  updatedAt       DateTime  @updatedAt
  closedAt        DateTime?

  attachments     RMAAttachment[]
  statusHistory   RMAStatusHistory[]
  comments        RMAComment[]
  tags            RMATag[]

  @@index([rmaNumber])
  @@index([customerId])
  @@index([statusId])
  @@index([proposedSolutionId])
  @@index([assignedToId])
  @@index([createdById])
  @@index([purchaseDate])
  @@index([receivedDate])
}

model RMAAttachment {
  id        String   @id @default(cuid())
  rmaId     String
  rma       RMA      @relation(fields: [rmaId], references: [id], onDelete: Cascade)

  filename  String
  filepath  String
  mimetype  String
  size      Int

  uploadedById String
  uploadedBy   User   @relation(fields: [uploadedById], references: [id])

  uploadedAt DateTime @default(now())

  @@index([rmaId])
}

model RMAStatusHistory {
  id          String    @id @default(cuid())
  rmaId       String
  rma         RMA       @relation(fields: [rmaId], references: [id], onDelete: Cascade)

  fromStatusId String?
  toStatusId   String

  changedById String
  changedBy   User      @relation(fields: [changedById], references: [id])

  notes       String?
  changedAt   DateTime  @default(now())

  @@index([rmaId])
  @@index([changedAt])
}

model RMAComment {
  id        String   @id @default(cuid())
  rmaId     String
  rma       RMA      @relation(fields: [rmaId], references: [id], onDelete: Cascade)

  content   String

  userId    String
  user      User     @relation(fields: [userId], references: [id])

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  @@index([rmaId])
  @@index([createdAt])
}

model RMATag {
  rmaId String
  tagId String
  rma   RMA @relation(fields: [rmaId], references: [id], onDelete: Cascade)
  tag   Tag @relation(fields: [tagId], references: [id], onDelete: Cascade)

  @@id([rmaId, tagId])
}

// ==================== ACTIVITY LOG ====================

model ActivityLog {
  id        String   @id @default(cuid())
  userId    String
  user      User     @relation(fields: [userId], references: [id])

  action    String
  entity    String
  entityId  String

  changes   Json?
  ipAddress String?
  userAgent String?

  createdAt DateTime @default(now())

  @@index([userId])
  @@index([entity, entityId])
  @@index([createdAt])
}