OK

internal/pkg/config/config.go

@@ -0,0 +1,31 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+)
+
+type Config struct {
+	Port, PostgresDSN, TDengineDSN, TDengineDatabase string
+	HistoryRetentionDays, CollectorWorkers           int
+}
+
+func env(k, d string) string {
+	if v := os.Getenv(k); v != "" {
+		return v
+	}
+	return d
+}
+func intEnv(k string, d int) int {
+	v, e := strconv.Atoi(env(k, strconv.Itoa(d)))
+	if e != nil {
+		return d
+	}
+	return v
+}
+func Load() Config {
+	ph, pp, pu, pw, pd := env("POSTGRES_HOST", "localhost"), env("POSTGRES_PORT", "5432"), env("POSTGRES_USER", "postgres"), env("POSTGRES_PASSWORD", ""), env("POSTGRES_DATABASE", "aquacontrolai")
+	th, tp, tu, tw, td := env("TDENGINE_HOST", "localhost"), env("TDENGINE_PORT", "6041"), env("TDENGINE_USER", "root"), env("TDENGINE_PASSWORD", ""), env("TDENGINE_DATABASE", "aquacontrolai")
+	return Config{Port: env("APP_PORT", "8080"), PostgresDSN: fmt.Sprintf("postgres://%s:%s@%s:%s/%s?sslmode=%s", pu, pw, ph, pp, pd, env("POSTGRES_SSLMODE", "disable")), TDengineDSN: fmt.Sprintf("%s:%s@http(%s:%s)/%s", tu, tw, th, tp, td), TDengineDatabase: td, HistoryRetentionDays: intEnv("HISTORY_RETENTION_DAYS", 365), CollectorWorkers: intEnv("COLLECTOR_WORKERS", 8)}
+}

internal/pkg/response/response.go

@@ -0,0 +1,18 @@
+package response
+
+import (
+	"github.com/gin-gonic/gin"
+	"net/http"
+)
+
+type Envelope struct {
+	Code    int    `json:"code"`
+	Message string `json:"message"`
+	Data    any    `json:"data,omitempty"`
+}
+
+func OK(c *gin.Context, data any)      { c.JSON(http.StatusOK, Envelope{0, "success", data}) }
+func Created(c *gin.Context, data any) { c.JSON(http.StatusCreated, Envelope{0, "success", data}) }
+func Error(c *gin.Context, status, code int, message string, data any) {
+	c.JSON(status, Envelope{code, message, data})
+}