24219b611e
Backend (Go): - Project structure with chi router, pgxpool, goose migrations - JWT auth (access/refresh tokens) with Firebase token verification - NoopTokenVerifier for local dev without Firebase credentials - PostgreSQL user repository with atomic profile updates (transactions) - Mifflin-St Jeor calorie calculation based on profile data - REST API: POST /auth/login, /auth/refresh, /auth/logout, GET/PUT /profile, GET /health - Middleware: auth, CORS (localhost wildcard), logging, recovery, request_id - Unit tests (51 passing) and integration tests (testcontainers) - Docker Compose setup with postgres healthcheck and graceful shutdown Flutter client: - Riverpod state management with GoRouter navigation - Firebase Auth (email/password + Google sign-in with web popup support) - Platform-aware API URLs (web/Android/iOS) - Dio HTTP client with JWT auth interceptor and concurrent refresh handling - Secure token storage - Screens: Login, Register, Home (tabs: Menu, Recipes, Products, Profile) - Unit tests (17 passing) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
52 lines
1.1 KiB
Go
52 lines
1.1 KiB
Go
package user
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import "math"
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// Activity level multipliers (Mifflin-St Jeor).
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var activityMultiplier = map[string]float64{
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"low": 1.375,
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"moderate": 1.55,
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"high": 1.725,
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}
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// Goal adjustments in kcal.
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var goalAdjustment = map[string]float64{
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"lose": -500,
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"maintain": 0,
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"gain": 300,
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}
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// CalculateDailyCalories computes the daily calorie target using the
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// Mifflin-St Jeor equation. Returns nil if any required parameter is missing.
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func CalculateDailyCalories(heightCM *int, weightKG *float64, age *int, gender, activity, goal *string) *int {
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if heightCM == nil || weightKG == nil || age == nil || gender == nil || activity == nil || goal == nil {
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return nil
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}
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// BMR = 10 * weight(kg) + 6.25 * height(cm) - 5 * age
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bmr := 10**weightKG + 6.25*float64(*heightCM) - 5*float64(*age)
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switch *gender {
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case "male":
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bmr += 5
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case "female":
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bmr -= 161
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default:
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return nil
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}
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mult, ok := activityMultiplier[*activity]
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if !ok {
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return nil
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}
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adj, ok := goalAdjustment[*goal]
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if !ok {
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return nil
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}
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tdee := bmr * mult
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result := int(math.Round(tdee + adj))
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return &result
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}
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