package config

import (
	"path/filepath"
	"strings"
)

// NormalizePipelineConfig applies reusable domain canonicalization before
// validation. It is deterministic and commits no partial Notarius changes when
// canonicalization fails.
func NormalizePipelineConfig(cfg *PipelineConfig) error {
	if cfg == nil || cfg.Notarius == nil || !cfg.Notarius.Enabled {
		return nil
	}
	notarius := *cfg.Notarius
	notarius.Binary = strings.TrimSpace(notarius.Binary)
	notarius.ChunkCache = strings.TrimSpace(notarius.ChunkCache)
	notarius.ConfigPath = cleanNotariusPath(notarius.ConfigPath)
	notarius.PipelineID = strings.TrimSpace(notarius.PipelineID)
	notarius.Timeout = strings.TrimSpace(notarius.Timeout)
	notarius.WorkingDirectory = cleanNotariusPath(notarius.WorkingDirectory)

	references, err := normalizeNotariusReferences(notarius.References)
	if err != nil {
		return err
	}
	outputs, err := normalizeNotariusOutputs(notarius.Outputs)
	if err != nil {
		return err
	}
	notarius.References = references
	notarius.Outputs = outputs
	*cfg.Notarius = notarius
	return nil
}

func cleanNotariusPath(value string) string {
	value = strings.TrimSpace(value)
	if value == "" {
		return ""
	}
	return filepath.Clean(value)
}