feat: Initial prototype

internal/api/api.go

@@ -0,0 +1,62 @@
+package api
+
+import (
+	"errors"
+	"net/http"
+	"time"
+
+	"github.com/gofiber/fiber/v2"
+	"github.com/gofiber/fiber/v2/middleware/cache"
+	"github.com/gofiber/fiber/v2/middleware/cors"
+	"github.com/gofiber/fiber/v2/middleware/favicon"
+	recover "github.com/gofiber/fiber/v2/middleware/recover"
+
+	"prayertimes/pkg/prayer"
+)
+
+type httpError struct {
+	Message string `json:"message"`
+}
+
+type Services struct {
+	PrayerTimesProvider prayer.TimesProvider
+}
+
+func New(services Services) *fiber.App {
+	app := fiber.New(fiber.Config{
+		Immutable:             true,
+		DisableStartupMessage: false,
+		ReadTimeout:           time.Second * 10,
+		WriteTimeout:          time.Second * 30,
+		ErrorHandler: func(ctx *fiber.Ctx, err error) error {
+			if errors.Is(err, prayer.ErrInvalidLocation) {
+				return ctx.Status(http.StatusUnprocessableEntity).JSON(httpError{
+					Message: err.Error(),
+				})
+			}
+
+			return fiber.DefaultErrorHandler(ctx, err)
+		},
+	})
+
+	app.Use(
+		recover.New(recover.Config{
+			EnableStackTrace: true,
+		}),
+		favicon.New(),
+		cors.New(),
+	)
+
+	app.Get("/diyanet/prayertimes", cache.New(), func(ctx *fiber.Ctx) error {
+		locationID := ctx.Query("location_id")
+
+		times, err := services.PrayerTimesProvider.Get(ctx.Context(), locationID)
+		if err != nil {
+			return err
+		}
+
+		return ctx.JSON(times)
+	})
+
+	return app
+}