delivery slot api creation

controllers/deliverySlotController.go

@@ -0,0 +1,146 @@
+package controllers
+
+import (
+	"net/http"
+	"strconv"
+
+	"github.com/gofiber/fiber/v2"
+
+	"nearle/models"
+	"nearle/services"
+)
+
+type DeliverySlotController struct {
+	service services.DeliverySlotService
+}
+
+func NewDeliverySlotController(service services.DeliverySlotService) *DeliverySlotController {
+	return &DeliverySlotController{service: service}
+}
+
+/*
+GET /v1/web/deliveryslots?tenantid&locationid
+
+Everything a branch has configured, active or not, for the console's editor.
+A branch that has set nothing returns an empty list — see the note on Available
+about why that is never an error.
+*/
+func (ctl *DeliverySlotController) ListDeliverySlots(c *fiber.Ctx) error {
+	tenantID, _ := strconv.Atoi(c.Query("tenantid"))
+	locationID, _ := strconv.Atoi(c.Query("locationid"))
+
+	if tenantID <= 0 {
+		return c.Status(http.StatusBadRequest).JSON(fiber.Map{
+			"code":    http.StatusBadRequest,
+			"message": "tenantid is required",
+			"status":  false,
+		})
+	}
+
+	slots, err := ctl.service.ListForBranch(tenantID, locationID)
+	if err != nil {
+		return c.Status(http.StatusInternalServerError).JSON(fiber.Map{
+			"code":    http.StatusInternalServerError,
+			"message": err.Error(),
+			"status":  false,
+		})
+	}
+
+	return c.Status(http.StatusOK).JSON(fiber.Map{
+		"code":    http.StatusOK,
+		"message": "Success",
+		"status":  true,
+		"details": slots,
+	})
+}
+
+/*
+PUT /v1/web/deliveryslots
+
+The branch's windows, all three together rather than one at a time: they are
+edited as a set on one screen, and sending them together is what lets the
+service reject the whole edit when one row is wrong instead of applying part of
+it.
+
+A business objection — an unreadable time, a window ending before it starts,
+the same key twice — is 409 and not 500. It is an answer about the request, and
+the message is written to be shown to the person who typed it.
+*/
+func (ctl *DeliverySlotController) SaveDeliverySlots(c *fiber.Ctx) error {
+	var req struct {
+		Tenantid   int                    `json:"tenantid"`
+		Locationid int                    `json:"locationid"`
+		Slots      []models.DeliverySlots `json:"slots"`
+	}
+
+	if err := c.BodyParser(&req); err != nil {
+		return c.Status(http.StatusBadRequest).JSON(fiber.Map{
+			"code":    http.StatusBadRequest,
+			"message": "Invalid request body",
+			"status":  false,
+		})
+	}
+
+	if req.Tenantid <= 0 {
+		return c.Status(http.StatusBadRequest).JSON(fiber.Map{
+			"code":    http.StatusBadRequest,
+			"message": "tenantid is required",
+			"status":  false,
+		})
+	}
+
+	if err := ctl.service.Save(req.Tenantid, req.Locationid, req.Slots); err != nil {
+		return c.Status(http.StatusConflict).JSON(fiber.Map{
+			"code":    http.StatusConflict,
+			"message": err.Error(),
+			"status":  false,
+		})
+	}
+
+	return c.Status(http.StatusOK).JSON(fiber.Map{
+		"code":    http.StatusOK,
+		"message": "Successfully Updated",
+		"status":  true,
+	})
+}
+
+/*
+GET /v1/mob/deliveryslots/available?tenantid&locationid
+
+What the shopper may pick, already filtered and dated. The app renders this list
+and does no time arithmetic of its own — see the service for why one clock has
+to be authoritative.
+
+An empty list is 200 with `details: []`, NOT an error. It means this branch has
+set no windows, which is the state every shop is in today, and the app is
+required to fall back to ordering without one. Returning 404 here would turn an
+ordinary shop into a broken one.
+*/
+func (ctl *DeliverySlotController) AvailableDeliverySlots(c *fiber.Ctx) error {
+	tenantID, _ := strconv.Atoi(c.Query("tenantid"))
+	locationID, _ := strconv.Atoi(c.Query("locationid"))
+
+	if tenantID <= 0 {
+		return c.Status(http.StatusBadRequest).JSON(fiber.Map{
+			"code":    http.StatusBadRequest,
+			"message": "tenantid is required",
+			"status":  false,
+		})
+	}
+
+	slots, err := ctl.service.Available(tenantID, locationID)
+	if err != nil {
+		return c.Status(http.StatusInternalServerError).JSON(fiber.Map{
+			"code":    http.StatusInternalServerError,
+			"message": err.Error(),
+			"status":  false,
+		})
+	}
+
+	return c.Status(http.StatusOK).JSON(fiber.Map{
+		"code":    http.StatusOK,
+		"message": "Success",
+		"status":  true,
+		"details": slots,
+	})
+}