146 lines
2.2 KiB
Go
146 lines
2.2 KiB
Go
package main
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import (
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"fmt"
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"net/http"
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"time"
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"github.com/phpdave11/gofpdf"
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"github.com/phpdave11/gofpdf/contrib/gofpdi"
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)
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type Order struct {
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ID int `json:"id"`
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Quantity int `json:"quantity"`
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Amount int `json:"amount"`
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Product string `json:"product"`
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FirstName string `json:"first_name"`
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LastName string `json:"last_name"`
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Email string `json:"email"`
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CreatedAt time.Time `json:"-"`
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}
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func (app *application) CreateAndSendInvoice(w http.ResponseWriter, r *http.Request) {
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// receive json
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var order Order
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err := app.readJSON(w, r, &order)
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if err != nil {
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app.badRequest(w, r, err)
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return
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}
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// generate a pdf invoice
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// create mail
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// send mail with attachment
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// send response
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var resp JSONResponse
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resp.OK = true
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resp.Message = fmt.Sprintf("Invoice %d.pdf created and sent to %s", order.ID, order.Email)
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app.writeJSON(w, http.StatusCreated, resp)
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}
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func (app *application) createInvoicePDF(order Order) error {
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pdf := gofpdf.New("P", "mm", "Letter", "")
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pdf.SetMargins(10, 13, 10)
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pdf.SetAutoPageBreak(true, 0)
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importer := gofpdi.NewImporter()
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t := importer.ImportPage(pdf, "./pdf-templates/invoice.pdf", q, "/MediaBox")
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pdf.AddPage()
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importer.UseImportedTemplate(pdf, t, 0, 0, 215.9, 0)
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pdf.SetY(20)
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// write info
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pdf.SetY(50)
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pdf.SetX(10)
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pdf.SetFont("Times", "", 11)
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pdf.CellFormat(
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97,
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8,
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fmt.Sprintf("Attention: %s %s", order.FirstName, order.LastName),
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"",
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0,
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"L",
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false,
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0,
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"",
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)
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pdf.Ln(5)
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pdf.CellFormat(
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97,
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8,
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order.Email,
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"",
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0,
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"L",
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false,
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0,
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"",
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)
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pdf.Ln(5)
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pdf.CellFormat(
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97,
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8,
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order.CreatedAt.Format("2005-01-02"),
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"",
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0,
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"L",
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false,
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0,
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"",
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)
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pdf.SetX(58)
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pdf.SetY(93)
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pdf.CellFormat(
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155,
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8,
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order.Product,
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"",
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0,
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"L",
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false,
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0,
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"",
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)
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pdf.SetX(166)
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pdf.CellFormat(
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20,
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8,
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fmt.Sprintf("%d", order.Quantity),
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"",
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0,
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"C",
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false,
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0,
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"",
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)
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pdf.SetX(185)
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pdf.CellFormat(
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155,
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8,
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fmt.Sprintf("€%.2f", float32(order.Amount/100.0)),
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"",
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0,
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"R",
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false,
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0,
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"",
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)
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invoicePath := fmt.Sprintf("./invoices/%d.pdf", order.ID)
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err := pdf.OutputFileAndClose(invoicePath)
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if err != nil {
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return err
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}
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return nil
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}
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