type Action = 'view' | 'create' | 'edit' | 'delete' | 'approve'
type Module = 'dashboard' | 'destinations' | 'trip-sources' | 'suppliers' | 'drivers' | 'inventory' | 'queries' | 'quotes' | 'bookings' | 'payments' | 'operations' | 'settings' | 'reports' | 'invoicing' | 'tasks' | 'reminders' | 'sic-tours' | 'calendar'

const PERMISSIONS: Record<string, Record<Module, Action[]>> = {
  ADMIN: {
    dashboard: ['view'],
    destinations: ['view', 'create', 'edit', 'delete'],
    'trip-sources': ['view', 'create', 'edit', 'delete'],
    suppliers: ['view', 'create', 'edit', 'delete'],
    drivers: ['view', 'create', 'edit', 'delete'],
    inventory: ['view', 'create', 'edit', 'delete'],
    queries: ['view', 'create', 'edit', 'delete'],
    quotes: ['view', 'create', 'edit', 'delete'],
    bookings: ['view', 'create', 'edit', 'delete'],
    payments: ['view', 'create', 'edit', 'approve'],
    operations: ['view', 'create', 'edit'],
    settings: ['view', 'create', 'edit', 'delete'],
    reports: ['view'],
    invoicing: ['view', 'create', 'edit', 'delete'],
    tasks: ['view', 'create', 'edit', 'delete'],
    reminders: ['view', 'create', 'edit', 'delete'],
    'sic-tours': ['view', 'create', 'edit', 'delete'],
    calendar: ['view'],
  },
  OPERATIONS: {
    dashboard: ['view'],
    destinations: ['view', 'create', 'edit'],
    'trip-sources': ['view'],
    suppliers: ['view', 'create', 'edit'],
    drivers: ['view', 'create', 'edit'],
    inventory: ['view', 'create', 'edit'],
    queries: ['view', 'create', 'edit'],
    quotes: ['view', 'create', 'edit'],
    bookings: ['view', 'create', 'edit'],
    payments: ['view'],
    operations: ['view', 'create', 'edit'],
    settings: [],
    reports: ['view'],
    invoicing: ['view'],
    tasks: ['view', 'create', 'edit'],
    reminders: ['view', 'create', 'edit'],
    'sic-tours': ['view', 'create', 'edit'],
    calendar: ['view'],
  },
  SALES: {
    dashboard: ['view'],
    destinations: ['view'],
    'trip-sources': ['view', 'create', 'edit'],
    suppliers: ['view'],
    drivers: ['view'],
    inventory: ['view'],
    queries: ['view', 'create', 'edit'],
    quotes: ['view', 'create', 'edit'],
    bookings: ['view', 'create'],
    payments: ['view'],
    operations: ['view'],
    settings: [],
    reports: ['view'],
    invoicing: ['view'],
    tasks: ['view', 'create', 'edit'],
    reminders: ['view', 'create', 'edit'],
    'sic-tours': ['view'],
    calendar: ['view'],
  },
  FINANCE: {
    dashboard: ['view'],
    destinations: ['view'],
    'trip-sources': ['view'],
    suppliers: ['view'],
    drivers: ['view'],
    inventory: ['view'],
    queries: ['view'],
    quotes: ['view'],
    bookings: ['view'],
    payments: ['view', 'create', 'edit', 'approve'],
    operations: ['view'],
    settings: [],
    reports: ['view'],
    invoicing: ['view', 'create', 'edit'],
    tasks: ['view', 'create', 'edit'],
    reminders: ['view', 'create'],
    'sic-tours': ['view'],
    calendar: ['view'],
  },
}

export function hasPermission(role: string, module: Module, action: Action): boolean {
  const rolePermissions = PERMISSIONS[role]
  if (!rolePermissions) return false
  const modulePermissions = rolePermissions[module]
  if (!modulePermissions) return false
  return modulePermissions.includes(action)
}

export function getModulesForRole(role: string): Module[] {
  const rolePermissions = PERMISSIONS[role]
  if (!rolePermissions) return []
  return Object.entries(rolePermissions)
    .filter(([, actions]) => actions.includes('view'))
    .map(([module]) => module as Module)
}

export function canAccessModule(role: string, module: Module): boolean {
  return hasPermission(role, module, 'view')
}