package artifacts

import (
	"path/filepath"

	"gitea.maximumdirect.net/eric/narratio/internal/config"
)

// SessionPaths contains canonical local paths for one session work directory.
type SessionPaths struct {
	WorkspaceRoot         string
	Root                  string
	InputsDir             string
	AudioDir              string
	TranscriptsDir        string
	TranscriptsRawDir     string
	TranscriptsTrimmedDir string
	ArtifactsDir          string
	ConfigDir             string
	LogsDir               string
	ManifestPath          string
	LockPath              string
}

// SessionWorkDir returns the work directory for one session.
func SessionWorkDir(rootDir, sessionID string) string {
	return filepath.Join(rootDir, config.PathWorkDirSegment, sessionID)
}

// SessionRunWorkDir returns the campaign/session/run scoped local work directory.
func SessionRunWorkDir(rootDir, campaign, sessionID, runID string) string {
	return filepath.Join(rootDir, config.PathWorkDirSegment, campaign, sessionID, runID)
}

// SessionSpoolAudioDir returns the campaign/session/run scoped local spool audio path.
func SessionSpoolAudioDir(spoolRoot, campaign, sessionID, runID string) string {
	return filepath.Join(spoolRoot, campaign, sessionID, runID, config.PathAudioDirSegment)
}

func buildSessionPaths(workspaceRoot, sessionID string) SessionPaths {
	root := SessionWorkDir(workspaceRoot, sessionID)
	return SessionPaths{
		WorkspaceRoot:         workspaceRoot,
		Root:                  root,
		InputsDir:             filepath.Join(root, config.PathInputsDirSegment),
		AudioDir:              filepath.Join(root, config.PathAudioDirSegment),
		TranscriptsDir:        filepath.Join(root, config.PathTranscriptsSegment),
		TranscriptsRawDir:     filepath.Join(root, filepath.FromSlash(config.PathTranscriptsRaw)),
		TranscriptsTrimmedDir: filepath.Join(root, filepath.FromSlash(config.PathTranscriptsTrimmed)),
		ArtifactsDir:          filepath.Join(root, config.PathArtifactsDirSegment),
		ConfigDir:             filepath.Join(root, config.PathConfigDirSegment),
		LogsDir:               filepath.Join(root, config.PathLogsDirSegment),
		ManifestPath:          filepath.Join(root, config.PathManifestFile),
		LockPath:              filepath.Join(root, config.PathLockFile),
	}
}