package workspace

import (
	"fmt"
	"path/filepath"
	"strings"

	"gitea.maximumdirect.net/eric/notarius/internal/core/config"
)

type Settings struct {
	RootDir            string
	DiagnosticsRoot    string
	CheckpointsRoot    string
	DebugRoot          string
	DiagnosticsEnabled bool
	ResumeEnabled      bool
	DebugEnabled       bool
}

func FromConfig(cfg config.Config) Settings {
	_ = cfg
	return Settings{}
}

func (s Settings) DiagnosticsRunDirectory(runID string) (string, error) {
	if !s.DiagnosticsEnabled || strings.TrimSpace(s.DiagnosticsRoot) == "" {
		return "", nil
	}
	return safeSingleDirectory(s.DiagnosticsRoot, runID, "diagnostics run ID")
}

func (s Settings) DebugRunDirectory(runID string) (string, error) {
	if !s.DebugEnabled || strings.TrimSpace(s.DebugRoot) == "" {
		return "", nil
	}
	return safeSingleDirectory(s.DebugRoot, runID, "debug run ID")
}

func cleanPath(path string) string {
	path = strings.TrimSpace(path)
	if path == "" {
		return ""
	}
	return filepath.Clean(path)
}

func safeSingleDirectory(root string, name string, label string) (string, error) {
	name = strings.TrimSpace(name)
	if strings.Contains(name, "/") || strings.Contains(name, `\`) {
		return "", fmt.Errorf("%s %q must be a single directory name", label, name)
	}
	return SafePath(root, name)
}