updates

server/internal/handlers/daily_overview_handler.go

@@ -0,0 +1,93 @@
+package handlers
+
+import (
+	"go-server/internal/service"
+	"net/http"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+)
+
+type DailyOverviewController struct {
+	service *service.DailyOverviewService
+}
+
+func NewDailyOverviewController(service *service.DailyOverviewService) *DailyOverviewController {
+	return &DailyOverviewController{
+		service: service,
+	}
+}
+
+// GetDailyOverview returns comprehensive daily nutrient overview
+// GET /api/daily-overview/overview
+func (h *DailyOverviewController) GetDailyOverview(c *gin.Context) {
+	overview, err := h.service.GetDailyOverview(c.Request.Context())
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to get daily overview"})
+		return
+	}
+
+	c.JSON(http.StatusOK, overview)
+}
+
+// GetNutrientTotals returns just the aggregated nutrient totals
+// GET /api/daily-overview/totals
+func (h *DailyOverviewController) GetNutrientTotals(c *gin.Context) {
+	totals, err := h.service.GetNutrientTotals(c.Request.Context())
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to get nutrient totals"})
+		return
+	}
+
+	c.JSON(http.StatusOK, totals)
+}
+
+// GetSupplementBreakdown returns detailed breakdown by supplement
+// GET /api/daily-overview/breakdown
+func (h *DailyOverviewController) GetSupplementBreakdown(c *gin.Context) {
+	breakdown, err := h.service.GetSupplementBreakdown(c.Request.Context())
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to get supplement breakdown"})
+		return
+	}
+
+	c.JSON(http.StatusOK, breakdown)
+}
+
+// ExecuteCustomQuery allows executing custom SQL queries via API
+// POST /api/daily-overview/query
+// Body: {"query": "SELECT ...", "args": [...]}
+func (h *DailyOverviewController) ExecuteCustomQuery(c *gin.Context) {
+	var request struct {
+		Query string        `json:"query"`
+		Args  []interface{} `json:"args"`
+	}
+
+	if err := c.ShouldBindJSON(&request); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid request body"})
+		return
+	}
+
+	if request.Query == "" {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Query is required"})
+		return
+	}
+
+	// Basic security: only allow SELECT statements
+	queryUpper := strings.ToUpper(strings.TrimSpace(request.Query))
+	if !strings.HasPrefix(queryUpper, "SELECT") {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Only SELECT queries are allowed"})
+		return
+	}
+
+	results, err := h.service.ExecuteCustomQuery(c.Request.Context(), request.Query, request.Args...)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to execute query"})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{
+		"results": results,
+		"count":   len(results),
+	})
+}