package releasekit

import (
	"fmt"
	"os"
	"path/filepath"

	"gitea.maximumdirect.net/eric/ReleaseKit/internal/gitea"
)

func declaredBuildAssets(result BuildResult) ([]gitea.ExpectedAsset, error) {
	assets := make([]gitea.ExpectedAsset, 0, len(result.Artifacts)+1)
	for _, artifact := range result.Artifacts {
		if filepath.Base(artifact.Path) != artifact.Filename {
			return nil, fmt.Errorf("build artifact path %q does not end with filename %q", artifact.Path, artifact.Filename)
		}
		info, err := os.Stat(artifact.Path)
		if err != nil {
			return nil, fmt.Errorf("inspect build artifact %q: %w", artifact.Filename, err)
		}
		if !info.Mode().IsRegular() {
			return nil, fmt.Errorf("build artifact %q is not a regular file", artifact.Filename)
		}
		assets = append(assets, gitea.ExpectedAsset{
			Filename: artifact.Filename,
			SHA256:   artifact.SHA256,
			Size:     info.Size(),
			Path:     artifact.Path,
		})
	}
	manifest, err := gitea.BuildManifest(assets)
	if err != nil {
		return nil, fmt.Errorf("build checksum manifest: %w", err)
	}
	if manifest.Filename != "" {
		assets = append(assets, manifest)
	}
	return assets, nil
}