Files
QuoteForge/internal/handlers/export.go
2026-03-15 16:28:32 +03:00

272 lines
8.0 KiB
Go

package handlers
import (
"fmt"
"net/http"
"strings"
"time"
"git.mchus.pro/mchus/quoteforge/internal/models"
"git.mchus.pro/mchus/quoteforge/internal/services"
"github.com/gin-gonic/gin"
)
type ExportHandler struct {
exportService *services.ExportService
configService services.ConfigurationGetter
projectService *services.ProjectService
dbUsername string
}
func NewExportHandler(
exportService *services.ExportService,
configService services.ConfigurationGetter,
projectService *services.ProjectService,
dbUsername string,
) *ExportHandler {
return &ExportHandler{
exportService: exportService,
configService: configService,
projectService: projectService,
dbUsername: dbUsername,
}
}
type ExportRequest struct {
Name string `json:"name" binding:"required"`
ProjectName string `json:"project_name"`
ProjectUUID string `json:"project_uuid"`
Article string `json:"article"`
ServerCount int `json:"server_count"`
PricelistID *uint `json:"pricelist_id"`
Items []struct {
LotName string `json:"lot_name" binding:"required"`
Quantity int `json:"quantity" binding:"required,min=1"`
UnitPrice float64 `json:"unit_price"`
} `json:"items" binding:"required,min=1"`
Notes string `json:"notes"`
}
type ProjectExportOptionsRequest struct {
IncludeLOT bool `json:"include_lot"`
IncludeBOM bool `json:"include_bom"`
IncludeEstimate bool `json:"include_estimate"`
IncludeStock bool `json:"include_stock"`
IncludeCompetitor bool `json:"include_competitor"`
}
func (h *ExportHandler) ExportCSV(c *gin.Context) {
var req ExportRequest
if err := c.ShouldBindJSON(&req); err != nil {
RespondError(c, http.StatusBadRequest, "invalid request", err)
return
}
data := h.buildExportData(&req)
// Validate before streaming (can return JSON error)
if len(data.Configs) == 0 || len(data.Configs[0].Items) == 0 {
c.JSON(http.StatusBadRequest, gin.H{"error": "no items to export"})
return
}
// Get project code for filename
projectCode := req.ProjectName // legacy field: may contain code from frontend
if projectCode == "" && req.ProjectUUID != "" {
if project, err := h.projectService.GetByUUID(req.ProjectUUID, h.dbUsername); err == nil && project != nil {
projectCode = project.Code
}
}
if projectCode == "" {
projectCode = req.Name
}
// Set headers before streaming
exportDate := data.CreatedAt
articleSegment := sanitizeFilenameSegment(req.Article)
if articleSegment == "" {
articleSegment = "BOM"
}
filename := fmt.Sprintf("%s (%s) %s %s.csv", exportDate.Format("2006-01-02"), projectCode, req.Name, articleSegment)
c.Header("Content-Type", "text/csv; charset=utf-8")
c.Header("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", filename))
// Stream CSV (cannot return JSON after this point)
if err := h.exportService.ToCSV(c.Writer, data); err != nil {
c.Error(err) // Log only
return
}
}
// buildExportData converts an ExportRequest into a ProjectExportData using a temporary Configuration model
// so that ExportService.ConfigToExportData can resolve categories via localDB.
func (h *ExportHandler) buildExportData(req *ExportRequest) *services.ProjectExportData {
configItems := make(models.ConfigItems, len(req.Items))
for i, item := range req.Items {
configItems[i] = models.ConfigItem{
LotName: item.LotName,
Quantity: item.Quantity,
UnitPrice: item.UnitPrice,
}
}
serverCount := req.ServerCount
if serverCount < 1 {
serverCount = 1
}
cfg := &models.Configuration{
Article: req.Article,
ServerCount: serverCount,
PricelistID: req.PricelistID,
Items: configItems,
CreatedAt: time.Now(),
}
return h.exportService.ConfigToExportData(cfg)
}
func sanitizeFilenameSegment(value string) string {
if strings.TrimSpace(value) == "" {
return ""
}
replacer := strings.NewReplacer(
"/", "_",
"\\", "_",
":", "_",
"*", "_",
"?", "_",
"\"", "_",
"<", "_",
">", "_",
"|", "_",
)
return strings.TrimSpace(replacer.Replace(value))
}
func (h *ExportHandler) ExportConfigCSV(c *gin.Context) {
uuid := c.Param("uuid")
// Get config before streaming (can return JSON error)
config, err := h.configService.GetByUUID(uuid, h.dbUsername)
if err != nil {
RespondError(c, http.StatusNotFound, "resource not found", err)
return
}
data := h.exportService.ConfigToExportData(config)
// Validate before streaming (can return JSON error)
if len(data.Configs) == 0 || len(data.Configs[0].Items) == 0 {
c.JSON(http.StatusBadRequest, gin.H{"error": "no items to export"})
return
}
// Get project code for filename
projectCode := config.Name // fallback: use config name if no project
if config.ProjectUUID != nil && *config.ProjectUUID != "" {
if project, err := h.projectService.GetByUUID(*config.ProjectUUID, h.dbUsername); err == nil && project != nil {
projectCode = project.Code
}
}
// Set headers before streaming
// Use price update time if available, otherwise creation time
exportDate := config.CreatedAt
if config.PriceUpdatedAt != nil {
exportDate = *config.PriceUpdatedAt
}
filename := fmt.Sprintf("%s (%s) %s BOM.csv", exportDate.Format("2006-01-02"), projectCode, config.Name)
c.Header("Content-Type", "text/csv; charset=utf-8")
c.Header("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", filename))
// Stream CSV (cannot return JSON after this point)
if err := h.exportService.ToCSV(c.Writer, data); err != nil {
c.Error(err) // Log only
return
}
}
// ExportProjectCSV exports all active configurations of a project as a single CSV file.
func (h *ExportHandler) ExportProjectCSV(c *gin.Context) {
projectUUID := c.Param("uuid")
project, err := h.projectService.GetByUUID(projectUUID, h.dbUsername)
if err != nil {
RespondError(c, http.StatusNotFound, "resource not found", err)
return
}
result, err := h.projectService.ListConfigurations(projectUUID, h.dbUsername, "active")
if err != nil {
RespondError(c, http.StatusInternalServerError, "internal server error", err)
return
}
if len(result.Configs) == 0 {
c.JSON(http.StatusBadRequest, gin.H{"error": "no configurations to export"})
return
}
data := h.exportService.ProjectToExportData(result.Configs)
// Filename: YYYY-MM-DD (ProjectCode) BOM.csv
filename := fmt.Sprintf("%s (%s) BOM.csv", time.Now().Format("2006-01-02"), project.Code)
c.Header("Content-Type", "text/csv; charset=utf-8")
c.Header("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", filename))
if err := h.exportService.ToCSV(c.Writer, data); err != nil {
c.Error(err)
return
}
}
func (h *ExportHandler) ExportProjectPricingCSV(c *gin.Context) {
projectUUID := c.Param("uuid")
var req ProjectExportOptionsRequest
if err := c.ShouldBindJSON(&req); err != nil {
RespondError(c, http.StatusBadRequest, "invalid request", err)
return
}
project, err := h.projectService.GetByUUID(projectUUID, h.dbUsername)
if err != nil {
RespondError(c, http.StatusNotFound, "resource not found", err)
return
}
result, err := h.projectService.ListConfigurations(projectUUID, h.dbUsername, "active")
if err != nil {
RespondError(c, http.StatusInternalServerError, "internal server error", err)
return
}
if len(result.Configs) == 0 {
c.JSON(http.StatusBadRequest, gin.H{"error": "no configurations to export"})
return
}
opts := services.ProjectPricingExportOptions{
IncludeLOT: req.IncludeLOT,
IncludeBOM: req.IncludeBOM,
IncludeEstimate: req.IncludeEstimate,
IncludeStock: req.IncludeStock,
IncludeCompetitor: req.IncludeCompetitor,
}
data, err := h.exportService.ProjectToPricingExportData(result.Configs, opts)
if err != nil {
RespondError(c, http.StatusInternalServerError, "internal server error", err)
return
}
filename := fmt.Sprintf("%s (%s) pricing.csv", time.Now().Format("2006-01-02"), project.Code)
c.Header("Content-Type", "text/csv; charset=utf-8")
c.Header("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", filename))
if err := h.exportService.ToPricingCSV(c.Writer, data, opts); err != nil {
c.Error(err)
return
}
}