Add initial backend implementation
- Go module with Gin, GORM, JWT, excelize dependencies - Configuration loading from YAML with all settings - GORM models for users, categories, components, configurations, alerts - Repository layer for all entities - Services: auth (JWT), pricing (median/average/weighted), components, quotes, configurations, export (CSV/XLSX), alerts - Middleware: JWT auth, role-based access, CORS - HTTP handlers for all API endpoints - Main server with dependency injection and graceful shutdown Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Mikhail Chusavitin
210
internal/handlers/pricing.go
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210
internal/handlers/pricing.go
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package handlers
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import (
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"net/http"
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"strconv"
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"github.com/gin-gonic/gin"
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"github.com/mchus/quoteforge/internal/middleware"
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"github.com/mchus/quoteforge/internal/models"
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"github.com/mchus/quoteforge/internal/repository"
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"github.com/mchus/quoteforge/internal/services/alerts"
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"github.com/mchus/quoteforge/internal/services/pricing"
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)
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type PricingHandler struct {
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pricingService *pricing.Service
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alertService *alerts.Service
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componentRepo *repository.ComponentRepository
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statsRepo *repository.StatsRepository
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}
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func NewPricingHandler(
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pricingService *pricing.Service,
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alertService *alerts.Service,
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componentRepo *repository.ComponentRepository,
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statsRepo *repository.StatsRepository,
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) *PricingHandler {
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return &PricingHandler{
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pricingService: pricingService,
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alertService: alertService,
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componentRepo: componentRepo,
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statsRepo: statsRepo,
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}
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}
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func (h *PricingHandler) GetStats(c *gin.Context) {
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newAlerts, _ := h.alertService.GetNewAlertsCount()
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topComponents, _ := h.statsRepo.GetTopComponents(10)
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trendingComponents, _ := h.statsRepo.GetTrendingComponents(10)
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c.JSON(http.StatusOK, gin.H{
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"new_alerts_count": newAlerts,
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"top_components": topComponents,
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"trending_components": trendingComponents,
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})
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}
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func (h *PricingHandler) ListComponents(c *gin.Context) {
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page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
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perPage, _ := strconv.Atoi(c.DefaultQuery("per_page", "20"))
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filter := repository.ComponentFilter{
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Category: c.Query("category"),
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Vendor: c.Query("vendor"),
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Search: c.Query("search"),
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}
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if page < 1 {
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page = 1
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}
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if perPage < 1 || perPage > 100 {
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perPage = 20
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}
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offset := (page - 1) * perPage
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components, total, err := h.componentRepo.List(filter, offset, perPage)
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
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return
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}
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c.JSON(http.StatusOK, gin.H{
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"components": components,
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"total": total,
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"page": page,
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"per_page": perPage,
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})
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}
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func (h *PricingHandler) GetComponentPricing(c *gin.Context) {
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lotName := c.Param("lot_name")
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component, err := h.componentRepo.GetByLotName(lotName)
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if err != nil {
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c.JSON(http.StatusNotFound, gin.H{"error": "component not found"})
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return
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}
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stats, err := h.pricingService.GetPriceStats(lotName, 0)
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
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return
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}
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c.JSON(http.StatusOK, gin.H{
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"component": component,
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"price_stats": stats,
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})
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}
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type UpdatePriceRequest struct {
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LotName string `json:"lot_name" binding:"required"`
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Method models.PriceMethod `json:"method"`
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PeriodDays int `json:"period_days"`
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ManualPrice *float64 `json:"manual_price"`
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Reason string `json:"reason"`
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}
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func (h *PricingHandler) UpdatePrice(c *gin.Context) {
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userID := middleware.GetUserID(c)
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var req UpdatePriceRequest
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if err := c.ShouldBindJSON(&req); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
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return
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}
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if req.ManualPrice != nil && *req.ManualPrice > 0 {
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err := h.pricingService.SetManualPrice(req.LotName, *req.ManualPrice, req.Reason, userID)
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
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return
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}
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}
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if req.Method != "" {
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err := h.pricingService.UpdatePriceMethod(req.LotName, req.Method, req.PeriodDays)
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
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return
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}
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}
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c.JSON(http.StatusOK, gin.H{"message": "price updated"})
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}
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func (h *PricingHandler) RecalculateAll(c *gin.Context) {
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// This would be better as a background job
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c.JSON(http.StatusAccepted, gin.H{"message": "recalculation started"})
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}
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func (h *PricingHandler) ListAlerts(c *gin.Context) {
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page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
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perPage, _ := strconv.Atoi(c.DefaultQuery("per_page", "20"))
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filter := repository.AlertFilter{
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Status: models.AlertStatus(c.Query("status")),
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Severity: models.AlertSeverity(c.Query("severity")),
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Type: models.AlertType(c.Query("type")),
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LotName: c.Query("lot_name"),
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}
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alertsList, total, err := h.alertService.List(filter, page, perPage)
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
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return
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}
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c.JSON(http.StatusOK, gin.H{
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"alerts": alertsList,
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"total": total,
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"page": page,
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"per_page": perPage,
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})
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}
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func (h *PricingHandler) AcknowledgeAlert(c *gin.Context) {
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id, err := strconv.ParseUint(c.Param("id"), 10, 32)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": "invalid alert id"})
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return
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}
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if err := h.alertService.Acknowledge(uint(id)); err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
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return
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}
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c.JSON(http.StatusOK, gin.H{"message": "acknowledged"})
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}
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func (h *PricingHandler) ResolveAlert(c *gin.Context) {
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id, err := strconv.ParseUint(c.Param("id"), 10, 32)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": "invalid alert id"})
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return
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}
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if err := h.alertService.Resolve(uint(id)); err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
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return
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}
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c.JSON(http.StatusOK, gin.H{"message": "resolved"})
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}
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func (h *PricingHandler) IgnoreAlert(c *gin.Context) {
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id, err := strconv.ParseUint(c.Param("id"), 10, 32)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": "invalid alert id"})
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return
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}
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if err := h.alertService.Ignore(uint(id)); err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
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return
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}
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c.JSON(http.StatusOK, gin.H{"message": "ignored"})
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}
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