feat: add books APIs

internal/handler/letter.go

@@ -0,0 +1,103 @@
+package handler
+
+import (
+	"net/http"
+	"strconv"
+
+	"github.com/go-chi/chi/v5"
+	"github.com/prabhupadasays/spsays-bff/internal/repository"
+	"github.com/prabhupadasays/spsays-bff/pkg/response"
+)
+
+type LetterHandler struct {
+	repo *repository.LetterRepo
+}
+
+func NewLetterHandler(repo *repository.LetterRepo) *LetterHandler {
+	return &LetterHandler{repo: repo}
+}
+
+func (h *LetterHandler) GetBySlug(w http.ResponseWriter, r *http.Request) {
+	slug := chi.URLParam(r, "slug")
+	doc, err := h.repo.GetBySlug(r.Context(), slug)
+	if err != nil {
+		response.Error(w, http.StatusInternalServerError, "failed to fetch letter")
+		return
+	}
+	if doc == nil {
+		response.Error(w, http.StatusNotFound, "letter not found")
+		return
+	}
+	response.JSON(w, http.StatusOK, doc)
+}
+
+func (h *LetterHandler) GetByYear(w http.ResponseWriter, r *http.Request) {
+	yearStr := chi.URLParam(r, "year")
+	year, err := strconv.Atoi(yearStr)
+	if err != nil {
+		response.Error(w, http.StatusBadRequest, "invalid year")
+		return
+	}
+	docs, err := h.repo.GetByYear(r.Context(), year)
+	if err != nil {
+		response.Error(w, http.StatusInternalServerError, "failed to fetch letters")
+		return
+	}
+	response.JSON(w, http.StatusOK, docs)
+}
+
+func (h *LetterHandler) GetByRecipient(w http.ResponseWriter, r *http.Request) {
+	name := chi.URLParam(r, "name")
+	docs, err := h.repo.GetByRecipient(r.Context(), name)
+	if err != nil {
+		response.Error(w, http.StatusInternalServerError, "failed to fetch letters")
+		return
+	}
+	response.JSON(w, http.StatusOK, docs)
+}
+
+func (h *LetterHandler) GetByLocation(w http.ResponseWriter, r *http.Request) {
+	name := chi.URLParam(r, "name")
+	docs, err := h.repo.GetByLocation(r.Context(), name)
+	if err != nil {
+		response.Error(w, http.StatusInternalServerError, "failed to fetch letters")
+		return
+	}
+	response.JSON(w, http.StatusOK, docs)
+}
+
+func (h *LetterHandler) GetYears(w http.ResponseWriter, r *http.Request) {
+	docs, err := h.repo.GetYears(r.Context())
+	if err != nil {
+		response.Error(w, http.StatusInternalServerError, "failed to fetch years")
+		return
+	}
+	response.JSON(w, http.StatusOK, docs)
+}
+
+func (h *LetterHandler) GetRecipients(w http.ResponseWriter, r *http.Request) {
+	docs, err := h.repo.GetRecipients(r.Context())
+	if err != nil {
+		response.Error(w, http.StatusInternalServerError, "failed to fetch recipients")
+		return
+	}
+	response.JSON(w, http.StatusOK, docs)
+}
+
+func (h *LetterHandler) GetLocations(w http.ResponseWriter, r *http.Request) {
+	docs, err := h.repo.GetLocations(r.Context())
+	if err != nil {
+		response.Error(w, http.StatusInternalServerError, "failed to fetch locations")
+		return
+	}
+	response.JSON(w, http.StatusOK, docs)
+}
+
+func (h *LetterHandler) Count(w http.ResponseWriter, r *http.Request) {
+	count, err := h.repo.Count(r.Context())
+	if err != nil {
+		response.Error(w, http.StatusInternalServerError, "failed to count letters")
+		return
+	}
+	response.JSON(w, http.StatusOK, map[string]int64{"count": count})
+}