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internal/config/config.go

@@ -0,0 +1,63 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+)
+
+type Config struct {
+	Env         string
+	Host        string
+	Port        int
+	Database    DatabaseConfig
+	Meilisearch MeilisearchConfig
+	Redis       RedisConfig
+}
+
+func Load() (*Config, error) {
+	port, err := strconv.Atoi(getEnv("APP_PORT", "8080"))
+	if err != nil {
+		return nil, fmt.Errorf("invalid APP_PORT: %w", err)
+	}
+
+	env := getEnv("APP_ENV", "development")
+
+	db, err := loadDatabase(env)
+	if err != nil {
+		return nil, err
+	}
+	if err := db.validate(env); err != nil {
+		return nil, err
+	}
+
+	ms := loadMeilisearch(env)
+	if err := ms.validate(); err != nil {
+		return nil, err
+	}
+
+	rd := loadRedis(env)
+	if err := rd.validate(); err != nil {
+		return nil, err
+	}
+
+	return &Config{
+		Env:         env,
+		Host:        getEnv("APP_HOST", "0.0.0.0"),
+		Port:        port,
+		Database:    db,
+		Meilisearch: ms,
+		Redis:       rd,
+	}, nil
+}
+
+func (c *Config) Addr() string {
+	return fmt.Sprintf("%s:%d", c.Host, c.Port)
+}
+
+func getEnv(key, fallback string) string {
+	if v := os.Getenv(key); v != "" {
+		return v
+	}
+	return fallback
+}