feat: cli app

cmd/invoicer/create.go

@@ -1,5 +1,92 @@
 package main
 
-// TODO: This file contained broken and incomplete code that prevented the project from building.
-// It has been temporarily disabled to allow tests and builds to pass.
-// The original logic needs to be reviewed and rewritten.
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"time"
+
+	"git.schreifuchs.ch/lou-taylor/accounting/internal/email"
+)
+
+type createFlags struct {
+	Email  bool   `flag:"email" help:"send invoice by email"`
+	Output string `flag:"o" help:"output file"`
+}
+
+func create(arguments []string, c any) {
+	flags, ok := c.(*createFlags)
+	if !ok {
+		panic("invalid config injected")
+	}
+	req := parseRequest(arguments)
+
+	cfg, log, invoicer, mailer := inject()
+
+	repos, err := req.GetRepos()
+	if err != nil {
+		fmt.Printf("could not get repos: %v", err)
+		return
+	}
+	invoice, report, err := invoicer.Generate(req.Creditor, req.Debtor, time.Duration(req.DurationThreshold), req.HourlyRate, repos)
+	if err != nil {
+		log.Error(fmt.Sprintf("Error while creating invoice: %v", err))
+	}
+
+	// if no time has to be billed aka if bill for 0 CHF
+	if report.Total() <= time.Duration(0) {
+		log.Info("no suitable issues to be billed")
+		return
+	}
+
+	if flags.Email {
+		mail := email.Mail{
+			To:          []string{req.MailTo},
+			Subject:     fmt.Sprintf("Invoice from %s", cfg.Email.From),
+			Attachments: []email.Attachment{{Name: "invoice.pdf", MimeType: "application/pdf", Content: invoice}},
+		}
+		err := mailer.Send(mail)
+		if err != nil {
+			log.Error(fmt.Sprintf("Error while sending mail: %v", err))
+			os.Exit(1)
+		}
+		return
+	}
+	if len(flags.Output) > 0 {
+		file, err := os.Create(flags.Output)
+		if err != nil {
+			log.Error(fmt.Sprintf("Error opening output file: %v", err))
+			os.Exit(1)
+		}
+		defer file.Close()
+
+		_, err = io.Copy(file, invoice)
+		if err != nil {
+			log.Error(fmt.Sprintf("Error while writing to output file: %v", err))
+			os.Exit(1)
+		}
+		return
+	}
+	io.Copy(os.Stdout, invoice)
+}
+
+func parseRequest(arguments []string) *invoiceRequest {
+	if len(arguments) < 1 {
+		fmt.Println("please specify request file")
+		os.Exit(1)
+	}
+
+	file, err := os.Open(arguments[0])
+	if err != nil {
+		log.Fatalf("can't open file: %s %v", arguments[0], err)
+	}
+
+	defer file.Close()
+	req := &invoiceRequest{}
+
+	json.NewDecoder(file).Decode(req)
+
+	return req
+}