feat: init project

internal/handler/data_handler.go

@@ -0,0 +1,161 @@
+package handler
+
+import (
+	"fmt"
+	"log/slog"
+	"net/http"
+	"strconv"
+
+	"github.com/gofiber/fiber/v3"
+	"github.com/rogeecn/database_render/internal/service"
+)
+
+// DataHandler handles HTTP requests for data operations
+type DataHandler struct {
+	service *service.DataService
+	logger  *slog.Logger
+}
+
+// NewDataHandler creates a new data handler
+func NewDataHandler(service *service.DataService) *DataHandler {
+	return &DataHandler{
+		service: service,
+		logger:  slog.With("component", "handler"),
+	}
+}
+
+// GetTables returns all configured tables
+func (h *DataHandler) GetTables(c fiber.Ctx) error {
+	tables, err := h.service.GetTables()
+	if err != nil {
+		h.logger.Error("failed to get tables", "error", err)
+		return c.Status(http.StatusInternalServerError).JSON(fiber.Map{
+			"error": "Failed to get tables",
+		})
+	}
+
+	h.logger.Debug("retrieved tables", "count", len(tables))
+	return c.JSON(fiber.Map{
+		"tables": tables,
+	})
+}
+
+// GetTableData returns paginated data for a table
+func (h *DataHandler) GetTableData(c fiber.Ctx) error {
+	tableName := c.Params("table")
+	if tableName == "" {
+		return c.Status(http.StatusBadRequest).JSON(fiber.Map{
+			"error": "Table name is required",
+		})
+	}
+
+	// Parse query parameters
+	page, err := strconv.Atoi(c.Query("page", "1"))
+	if err != nil || page <= 0 {
+		page = 1
+	}
+
+	pageSize, err := strconv.Atoi(c.Query("per_page", "10"))
+	if err != nil || pageSize <= 0 {
+		pageSize = 10
+	}
+
+	search := c.Query("search", "")
+	sortField := c.Query("sort", "")
+	sortOrder := c.Query("order", "asc")
+
+	// Validate sort order
+	if sortOrder != "asc" && sortOrder != "desc" {
+		sortOrder = "asc"
+	}
+
+	// Get table data
+	data, err := h.service.GetTableData(tableName, page, pageSize, search, sortField, sortOrder)
+	if err != nil {
+		h.logger.Error("failed to get table data",
+			"table", tableName,
+			"page", page,
+			"error", err)
+		return c.Status(http.StatusInternalServerError).JSON(fiber.Map{
+			"error": fmt.Sprintf("Failed to get table data: %v", err),
+		})
+	}
+
+	return c.JSON(data)
+}
+
+// GetTableDetail returns a single record detail
+func (h *DataHandler) GetTableDetail(c fiber.Ctx) error {
+	tableName := c.Params("table")
+	if tableName == "" {
+		return c.Status(http.StatusBadRequest).JSON(fiber.Map{
+			"error": "Table name is required",
+		})
+	}
+
+	id := c.Params("id")
+	if id == "" {
+		return c.Status(http.StatusBadRequest).JSON(fiber.Map{
+			"error": "ID is required",
+		})
+	}
+
+	// Get table detail
+	detail, err := h.service.GetTableDetail(tableName, id)
+	if err != nil {
+		h.logger.Error("failed to get table detail",
+			"table", tableName,
+			"id", id,
+			"error", err)
+		return c.Status(http.StatusInternalServerError).JSON(fiber.Map{
+			"error": fmt.Sprintf("Failed to get table detail: %v", err),
+		})
+	}
+
+	return c.JSON(detail)
+}
+
+// GetTableConfig returns the configuration for a specific table
+func (h *DataHandler) GetTableConfig(c fiber.Ctx) error {
+	tableName := c.Params("table")
+	if tableName == "" {
+		return c.Status(http.StatusBadRequest).JSON(fiber.Map{
+			"error": "Table name is required",
+		})
+	}
+
+	config, err := h.service.GetTableConfig(tableName)
+	if err != nil {
+		h.logger.Error("failed to get table config",
+			"table", tableName,
+			"error", err)
+		return c.Status(http.StatusInternalServerError).JSON(fiber.Map{
+			"error": fmt.Sprintf("Failed to get table config: %v", err),
+		})
+	}
+
+	return c.JSON(config)
+}
+
+// Health returns the health status
+func (h *DataHandler) Health(c fiber.Ctx) error {
+	return c.JSON(fiber.Map{
+		"status": "ok",
+		"message": "Service is healthy",
+	})
+}
+
+// SetupRoutes sets up all the routes for the data handler
+func (h *DataHandler) SetupRoutes(app *fiber.App) {
+	// API routes
+	api := app.Group("/api")
+	
+	// Table routes
+	api.Get("/tables", h.GetTables)
+	api.Get("/data/:table", h.GetTableData)
+	api.Get("/data/:table/detail/:id", h.GetTableDetail)
+	api.Get("/config/:table", h.GetTableConfig)
+	
+	// Health check
+	api.Get("/health", h.Health)
+}