package dbml

import (
	"git.warky.dev/wdevs/relspecgo/pkg/models"
)

// directiveLines renders every dialect directive stored in meta back to its DBML
// source form, one line per directive, each prefixed with indent. When target is
// non-empty it is emitted as the "(column)" target, e.g.
// "  @postgres(id): identity always". Order is deterministic (see
// models.GetDirectives).
func directiveLines(meta map[string]any, indent, target string) []string {
	directives := models.GetDirectives(meta)
	if len(directives) == 0 {
		return nil
	}

	lines := make([]string, 0, len(directives))
	for _, d := range directives {
		lines = append(lines, indent+models.FormatDirectiveLine(d, target))
	}
	return lines
}