Files
bssapp/svc/routes/order_list_pdf.go
2026-03-05 11:21:56 +03:00

379 lines
9.6 KiB
Go

package routes
import (
"bssapp-backend/queries"
"bytes"
"database/sql"
"fmt"
"net/http"
"sort"
"strconv"
"strings"
"time"
"github.com/jung-kurt/gofpdf"
)
type orderListPDFRow struct {
OrderNumber string
OrderDate string
TerminTarihi string
CurrAccCode string
CurrAccDescription string
MusteriTemsilcisi string
Piyasa string
DocCurrencyCode string
TotalAmount float64
TotalAmountUSD float64
PackedUSD float64
PackedRatePct float64
HasUretimUrunu bool
Description string
}
type pdfColumn struct {
Header string
Width float64
Align string
Wrap bool
MaxLines int
}
func OrderListPDFRoute(db *sql.DB) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
search := strings.TrimSpace(r.URL.Query().Get("search"))
currAcc := strings.TrimSpace(r.URL.Query().Get("CurrAccCode"))
orderDate := strings.TrimSpace(r.URL.Query().Get("OrderDate"))
sortBy := strings.TrimSpace(r.URL.Query().Get("sort_by"))
descending := parseBool(r.URL.Query().Get("descending"))
rows, err := queries.GetOrderListExcel(db, search, currAcc, orderDate)
if err != nil {
http.Error(w, "db error: "+err.Error(), http.StatusInternalServerError)
return
}
defer rows.Close()
out := make([]orderListPDFRow, 0, 256)
for rows.Next() {
var (
id, no, date, termin, code, name string
rep, piyasa, cur string
total float64
totalUSD float64
packedAmount float64
packedUSD float64
packedRatePct float64
hasUretim bool
desc string
usdRate float64
)
if err := rows.Scan(
&id, &no, &date, &termin, &code, &name, &rep, &piyasa, &cur,
&total, &totalUSD, &packedAmount, &packedUSD, &packedRatePct,
&hasUretim, &desc, &usdRate,
); err != nil {
http.Error(w, "scan error: "+err.Error(), http.StatusInternalServerError)
return
}
_ = id
_ = packedAmount
_ = usdRate
out = append(out, orderListPDFRow{
OrderNumber: no,
OrderDate: date,
TerminTarihi: termin,
CurrAccCode: code,
CurrAccDescription: name,
MusteriTemsilcisi: rep,
Piyasa: piyasa,
DocCurrencyCode: cur,
TotalAmount: total,
TotalAmountUSD: totalUSD,
PackedUSD: packedUSD,
PackedRatePct: packedRatePct,
HasUretimUrunu: hasUretim,
Description: desc,
})
}
applyOrderListSort(out, sortBy, descending)
pdf := gofpdf.New("L", "mm", "A4", "")
pdf.SetMargins(8, 8, 8)
pdf.SetAutoPageBreak(false, 10)
if err := registerDejavuFonts(pdf, "dejavu"); err != nil {
http.Error(w, "pdf font error: "+err.Error(), http.StatusInternalServerError)
return
}
drawOrderListPDF(pdf, out, search, currAcc, orderDate, sortBy, descending)
if err := pdf.Error(); err != nil {
http.Error(w, "pdf render error: "+err.Error(), http.StatusInternalServerError)
return
}
var buf bytes.Buffer
if err := pdf.Output(&buf); err != nil {
http.Error(w, "pdf output error: "+err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/pdf")
w.Header().Set("Content-Disposition", "inline; filename=\"siparis-listesi.pdf\"")
_, _ = w.Write(buf.Bytes())
})
}
func drawOrderListPDF(
pdf *gofpdf.Fpdf,
rows []orderListPDFRow,
search, currAcc, orderDate, sortBy string,
desc bool,
) {
cols := []pdfColumn{
{Header: "Siparis No", Width: 20, Align: "L", Wrap: false, MaxLines: 1},
{Header: "Tarih", Width: 12, Align: "C", Wrap: false, MaxLines: 1},
{Header: "Termin", Width: 12, Align: "C", Wrap: false, MaxLines: 1},
{Header: "Cari Kod", Width: 15, Align: "L", Wrap: true, MaxLines: 2},
{Header: "Cari Adi", Width: 27, Align: "L", Wrap: true, MaxLines: 3},
{Header: "Temsilci", Width: 18, Align: "L", Wrap: true, MaxLines: 2},
{Header: "Piyasa", Width: 13, Align: "L", Wrap: true, MaxLines: 2},
{Header: "PB", Width: 8, Align: "C", Wrap: false, MaxLines: 1},
{Header: "Tutar", Width: 15, Align: "R", Wrap: false, MaxLines: 1},
{Header: "USD", Width: 15, Align: "R", Wrap: false, MaxLines: 1},
{Header: "Paket USD", Width: 15, Align: "R", Wrap: false, MaxLines: 1},
{Header: "%", Width: 8, Align: "R", Wrap: false, MaxLines: 1},
{Header: "Uretim", Width: 24, Align: "L", Wrap: true, MaxLines: 3},
{Header: "Aciklama", Width: 52, Align: "L", Wrap: true, MaxLines: 3},
}
pageW, pageH := pdf.GetPageSize()
marginL, marginT, marginR := 8.0, 8.0, 8.0
bottomLimit := pageH - 10.0
lineH := 3.8
cellPadX := 1.1
cellPadY := 0.6
drawHeader := func() {
pdf.AddPage()
pdf.SetFont("dejavu", "B", 12)
pdf.CellFormat(0, 7, "Siparis Listesi", "", 1, "L", false, 0, "")
pdf.SetFont("dejavu", "", 8)
sortText := "TotalAmountUSD DESC (varsayilan)"
if sortBy != "" {
dir := "ASC"
if desc {
dir = "DESC"
}
sortText = fmt.Sprintf("%s %s", sortBy, dir)
}
filterLine := fmt.Sprintf(
"Filtreler -> Arama: %s | Cari: %s | Siparis Tarihi: %s | Siralama: %s | Olusturma: %s",
emptyDash(search),
emptyDash(currAcc),
emptyDash(orderDate),
sortText,
time.Now().Format("2006-01-02 15:04"),
)
pdf.CellFormat(0, 5, filterLine, "", 1, "L", false, 0, "")
pdf.Ln(1)
pdf.SetFont("dejavu", "B", 8)
pdf.SetFillColor(240, 240, 240)
for _, c := range cols {
pdf.CellFormat(c.Width, 6, c.Header, "1", 0, "C", true, 0, "")
}
pdf.Ln(-1)
pdf.SetFont("dejavu", "", 7)
}
buildCells := func(row orderListPDFRow) []string {
uretim := ""
if row.HasUretimUrunu {
uretim = "Uretime Verilecek Urunu Var"
}
return []string{
row.OrderNumber,
row.OrderDate,
row.TerminTarihi,
row.CurrAccCode,
row.CurrAccDescription,
row.MusteriTemsilcisi,
row.Piyasa,
row.DocCurrencyCode,
fmt.Sprintf("%.2f", row.TotalAmount),
fmt.Sprintf("%.2f", row.TotalAmountUSD),
fmt.Sprintf("%.2f", row.PackedUSD),
fmt.Sprintf("%.2f", row.PackedRatePct),
uretim,
row.Description,
}
}
calcLineCount := func(col pdfColumn, text string) int {
if !col.Wrap {
return 1
}
lines := pdf.SplitLines([]byte(strings.TrimSpace(text)), col.Width-(cellPadX*2))
n := len(lines)
if n < 1 {
n = 1
}
if col.MaxLines > 0 && n > col.MaxLines {
n = col.MaxLines
}
return n
}
drawWrappedCell := func(x, y, w, h float64, text, align string, maxLines int) {
pdf.Rect(x, y, w, h, "D")
lines := pdf.SplitLines([]byte(strings.TrimSpace(text)), w-(cellPadX*2))
if len(lines) == 0 {
lines = [][]byte{[]byte("")}
}
if maxLines > 0 && len(lines) > maxLines {
lines = lines[:maxLines]
}
ty := y + cellPadY + 2.8
for _, ln := range lines {
pdf.SetXY(x+cellPadX, ty-2.8)
pdf.CellFormat(w-(cellPadX*2), 3.8, string(ln), "", 0, align, false, 0, "")
ty += 3.8
}
}
drawHeader()
for _, row := range rows {
cells := buildCells(row)
maxLines := 1
for i, c := range cols {
n := calcLineCount(c, cells[i])
if n > maxLines {
maxLines = n
}
}
rowH := (float64(maxLines) * lineH) + (cellPadY * 2)
if pdf.GetY()+rowH > bottomLimit {
drawHeader()
}
x := marginL
y := pdf.GetY()
for i, c := range cols {
if c.Wrap {
drawWrappedCell(x, y, c.Width, rowH, cells[i], c.Align, c.MaxLines)
} else {
pdf.SetXY(x, y)
pdf.CellFormat(c.Width, rowH, cells[i], "1", 0, c.Align, false, 0, "")
}
x += c.Width
}
pdf.SetXY(marginL, y+rowH)
}
_ = pageW
_ = marginT
_ = marginR
}
func applyOrderListSort(rows []orderListPDFRow, sortBy string, desc bool) {
if len(rows) <= 1 {
return
}
field := strings.TrimSpace(sortBy)
if field == "" {
field = "TotalAmountUSD"
desc = true
}
lessText := func(a, b string) bool {
aa := strings.ToLower(strings.TrimSpace(a))
bb := strings.ToLower(strings.TrimSpace(b))
if desc {
return aa > bb
}
return aa < bb
}
lessNum := func(a, b float64) bool {
if desc {
return a > b
}
return a < b
}
lessBool := func(a, b bool) bool {
av, bv := 0, 0
if a {
av = 1
}
if b {
bv = 1
}
if desc {
return av > bv
}
return av < bv
}
sort.SliceStable(rows, func(i, j int) bool {
a := rows[i]
b := rows[j]
switch field {
case "OrderNumber":
return lessText(a.OrderNumber, b.OrderNumber)
case "OrderDate":
return lessText(a.OrderDate, b.OrderDate)
case "TerminTarihi":
return lessText(a.TerminTarihi, b.TerminTarihi)
case "CurrAccCode":
return lessText(a.CurrAccCode, b.CurrAccCode)
case "CurrAccDescription":
return lessText(a.CurrAccDescription, b.CurrAccDescription)
case "MusteriTemsilcisi":
return lessText(a.MusteriTemsilcisi, b.MusteriTemsilcisi)
case "Piyasa":
return lessText(a.Piyasa, b.Piyasa)
case "DocCurrencyCode":
return lessText(a.DocCurrencyCode, b.DocCurrencyCode)
case "TotalAmount":
return lessNum(a.TotalAmount, b.TotalAmount)
case "PackedUSD":
return lessNum(a.PackedUSD, b.PackedUSD)
case "PackedRatePct":
return lessNum(a.PackedRatePct, b.PackedRatePct)
case "HasUretimUrunu":
return lessBool(a.HasUretimUrunu, b.HasUretimUrunu)
case "Description":
return lessText(a.Description, b.Description)
default:
return lessNum(a.TotalAmountUSD, b.TotalAmountUSD)
}
})
}
func emptyDash(v string) string {
if strings.TrimSpace(v) == "" {
return "-"
}
return v
}
func parseBool(v string) bool {
b, err := strconv.ParseBool(strings.TrimSpace(v))
if err == nil {
return b
}
switch strings.TrimSpace(strings.ToLower(v)) {
case "1", "yes", "on":
return true
default:
return false
}
}