// SPDX-FileCopyrightText: Amolith <amolith@secluded.site>
//
// SPDX-License-Identifier: AGPL-3.0-or-later

package main

import (
	"fmt"
	"os"
	"os/exec"
)

func runGitWithStdin(args []string, content string) error {
	gitCmd := exec.Command("git", args...)
	gitCmd.Stdout = os.Stdout
	gitCmd.Stderr = os.Stderr

	stdin, err := gitCmd.StdinPipe()
	if err != nil {
		return fmt.Errorf("failed to create stdin pipe: %w", err)
	}

	if err := gitCmd.Start(); err != nil {
		return fmt.Errorf("failed to start git command: %w", err)
	}

	if _, err := stdin.Write([]byte(content)); err != nil {
		return fmt.Errorf("failed to write to git stdin: %w", err)
	}

	if err := stdin.Close(); err != nil {
		return fmt.Errorf("failed to close stdin: %w", err)
	}

	if err := gitCmd.Wait(); err != nil {
		return fmt.Errorf("git %s failed: %w", args[0], err)
	}

	return nil
}

func validateSubjectLength(subject string) error {
	length := len(subject)
	if length > 50 {
		exceededBy := length - 50
		truncated := subject[:50] + "…"
		return fmt.Errorf("subject exceeds 50 character limit by %d:\n%s", exceededBy, truncated)
	}
	return nil
}