feat: versão 1.5 - CRM Beta com leads, funis, campanhas e portal do cliente

backend/internal/api/handlers/export.go

@@ -0,0 +1,210 @@
+package handlers
+
+import (
+	"aggios-app/backend/internal/api/middleware"
+	"aggios-app/backend/internal/domain"
+	"encoding/csv"
+	"encoding/json"
+	"fmt"
+	"log"
+	"net/http"
+	"strings"
+
+	"github.com/xuri/excelize/v2"
+)
+
+// ExportLeads handles exporting leads in different formats
+func (h *CRMHandler) ExportLeads(w http.ResponseWriter, r *http.Request) {
+	tenantID, _ := r.Context().Value(middleware.TenantIDKey).(string)
+	if tenantID == "" {
+		w.WriteHeader(http.StatusBadRequest)
+		json.NewEncoder(w).Encode(map[string]string{"error": "Missing tenant_id"})
+		return
+	}
+
+	format := r.URL.Query().Get("format")
+	if format == "" {
+		format = "csv"
+	}
+
+	customerID := r.URL.Query().Get("customer_id")
+	campaignID := r.URL.Query().Get("campaign_id")
+
+	var leads []domain.CRMLead
+	var err error
+
+	if campaignID != "" {
+		leads, err = h.repo.GetLeadsByListID(campaignID)
+	} else if customerID != "" {
+		leads, err = h.repo.GetLeadsByTenant(tenantID)
+		// Filter by customer manually
+		filtered := []domain.CRMLead{}
+		for _, lead := range leads {
+			if lead.CustomerID != nil && *lead.CustomerID == customerID {
+				filtered = append(filtered, lead)
+			}
+		}
+		leads = filtered
+	} else {
+		leads, err = h.repo.GetLeadsByTenant(tenantID)
+	}
+
+	if err != nil {
+		log.Printf("ExportLeads: Error fetching leads: %v", err)
+		w.WriteHeader(http.StatusInternalServerError)
+		json.NewEncoder(w).Encode(map[string]string{"error": "Failed to fetch leads"})
+		return
+	}
+
+	switch strings.ToLower(format) {
+	case "json":
+		exportJSON(w, leads)
+	case "xlsx", "excel":
+		exportXLSX(w, leads)
+	default:
+		exportCSV(w, leads)
+	}
+}
+
+func exportJSON(w http.ResponseWriter, leads []domain.CRMLead) {
+	w.Header().Set("Content-Type", "application/json")
+	w.Header().Set("Content-Disposition", "attachment; filename=leads.json")
+
+	json.NewEncoder(w).Encode(map[string]interface{}{
+		"leads": leads,
+		"count": len(leads),
+	})
+}
+
+func exportCSV(w http.ResponseWriter, leads []domain.CRMLead) {
+	w.Header().Set("Content-Type", "text/csv")
+	w.Header().Set("Content-Disposition", "attachment; filename=leads.csv")
+
+	writer := csv.NewWriter(w)
+	defer writer.Flush()
+
+	// Header
+	header := []string{"ID", "Nome", "Email", "Telefone", "Status", "Origem", "Notas", "Tags", "Criado Em"}
+	writer.Write(header)
+
+	// Data
+	for _, lead := range leads {
+		tags := ""
+		if len(lead.Tags) > 0 {
+			tags = strings.Join(lead.Tags, ", ")
+		}
+
+		phone := ""
+		if lead.Phone != "" {
+			phone = lead.Phone
+		}
+
+		notes := ""
+		if lead.Notes != "" {
+			notes = lead.Notes
+		}
+
+		row := []string{
+			lead.ID,
+			lead.Name,
+			lead.Email,
+			phone,
+			lead.Status,
+			lead.Source,
+			notes,
+			tags,
+			lead.CreatedAt.Format("02/01/2006 15:04"),
+		}
+		writer.Write(row)
+	}
+}
+
+func exportXLSX(w http.ResponseWriter, leads []domain.CRMLead) {
+	f := excelize.NewFile()
+	defer f.Close()
+
+	sheetName := "Leads"
+	index, err := f.NewSheet(sheetName)
+	if err != nil {
+		log.Printf("Error creating sheet: %v", err)
+		w.WriteHeader(http.StatusInternalServerError)
+		return
+	}
+
+	// Set active sheet
+	f.SetActiveSheet(index)
+
+	// Header style
+	headerStyle, _ := f.NewStyle(&excelize.Style{
+		Font: &excelize.Font{
+			Bold: true,
+			Size: 12,
+		},
+		Fill: excelize.Fill{
+			Type:    "pattern",
+			Color:   []string{"#4472C4"},
+			Pattern: 1,
+		},
+		Alignment: &excelize.Alignment{
+			Horizontal: "center",
+			Vertical:   "center",
+		},
+	})
+
+	// Headers
+	headers := []string{"ID", "Nome", "Email", "Telefone", "Status", "Origem", "Notas", "Tags", "Criado Em"}
+	for i, header := range headers {
+		cell := fmt.Sprintf("%s1", string(rune('A'+i)))
+		f.SetCellValue(sheetName, cell, header)
+		f.SetCellStyle(sheetName, cell, cell, headerStyle)
+	}
+
+	// Data
+	for i, lead := range leads {
+		row := i + 2
+
+		tags := ""
+		if len(lead.Tags) > 0 {
+			tags = strings.Join(lead.Tags, ", ")
+		}
+
+		phone := ""
+		if lead.Phone != "" {
+			phone = lead.Phone
+		}
+
+		notes := ""
+		if lead.Notes != "" {
+			notes = lead.Notes
+		}
+
+		f.SetCellValue(sheetName, fmt.Sprintf("A%d", row), lead.ID)
+		f.SetCellValue(sheetName, fmt.Sprintf("B%d", row), lead.Name)
+		f.SetCellValue(sheetName, fmt.Sprintf("C%d", row), lead.Email)
+		f.SetCellValue(sheetName, fmt.Sprintf("D%d", row), phone)
+		f.SetCellValue(sheetName, fmt.Sprintf("E%d", row), lead.Status)
+		f.SetCellValue(sheetName, fmt.Sprintf("F%d", row), lead.Source)
+		f.SetCellValue(sheetName, fmt.Sprintf("G%d", row), notes)
+		f.SetCellValue(sheetName, fmt.Sprintf("H%d", row), tags)
+		f.SetCellValue(sheetName, fmt.Sprintf("I%d", row), lead.CreatedAt.Format("02/01/2006 15:04"))
+	}
+
+	// Auto-adjust column widths
+	for i := 0; i < len(headers); i++ {
+		col := string(rune('A' + i))
+		f.SetColWidth(sheetName, col, col, 15)
+	}
+	f.SetColWidth(sheetName, "B", "B", 25) // Nome
+	f.SetColWidth(sheetName, "C", "C", 30) // Email
+	f.SetColWidth(sheetName, "G", "G", 40) // Notas
+
+	// Delete default sheet if exists
+	f.DeleteSheet("Sheet1")
+
+	w.Header().Set("Content-Type", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
+	w.Header().Set("Content-Disposition", "attachment; filename=leads.xlsx")
+
+	if err := f.Write(w); err != nil {
+		log.Printf("Error writing xlsx: %v", err)
+	}
+}