feat: initialisation projet Hono.js + TypeScript + Vitest

src/lib/access.ts

@@ -0,0 +1,74 @@
+export type Plan = 'free' | 'standard' | 'premium'
+
+export type Feature =
+  | 'oral_t2_live'
+  | 'detailed_report'
+  | 'tips'
+  | 'dashboard'
+  | 'exam_mode'
+  | 'pattern_analysis'
+  | 'preparation_index'
+  | 'basic_report'
+
+export const PLANS = {
+  free: {
+    simulations_lifetime: 5,
+    oral_t2_live: false,
+    detailed_report: false,
+    tips: false,
+    dashboard: false,
+    exam_mode: false,
+    pattern_analysis: false,
+    preparation_index: false,
+  },
+  standard: {
+    simulations_lifetime: null,
+    oral_t2_live: false,
+    detailed_report: true,
+    tips: true,
+    dashboard: true,
+    exam_mode: false,
+    pattern_analysis: false,
+    preparation_index: false,
+  },
+  premium: {
+    simulations_lifetime: null,
+    oral_t2_live: true,
+    detailed_report: true,
+    tips: true,
+    dashboard: true,
+    exam_mode: true,
+    pattern_analysis: true,
+    preparation_index: true,
+  },
+}
+
+export function getPlanPermissions(plan: Plan) {
+  const perms = PLANS[plan]
+  if (!perms) {
+    throw new Error(`Plan inconnu : ${plan}`)
+  }
+  return perms
+}
+
+export function canUserSimulate(user: { plan: string; simulations_used: number }): {
+  allowed: boolean
+  reason?: string
+} {
+  if (!(user.plan in PLANS)) {
+    return { allowed: false, reason: 'invalid_plan' }
+  }
+  const plan = user.plan as Plan
+  const perms = PLANS[plan]
+  if (perms.simulations_lifetime !== null && user.simulations_used >= perms.simulations_lifetime) {
+    return { allowed: false, reason: 'quota_reached' }
+  }
+  return { allowed: true }
+}
+
+export function checkFeatureAccess(plan: Plan, feature: Feature): boolean {
+  if (feature === 'basic_report') return true
+  const perms = PLANS[plan]
+  if (!perms) return false
+  return perms[feature as keyof typeof perms] === true
+}