package proposal_generation

import (
	"encoding/json"
	"fmt"

	"gitea.maximumdirect.net/eric/audita/internal/core/schema"
	"gitea.maximumdirect.net/eric/audita/internal/framework/promptcontext"
)

// BuildProposalVariables preserves the domain inputs while PromptKit renders
// the selected embedded proposal definition.
func BuildProposalVariables(transcript *schema.Transcript, glossary *schema.Glossary, sectionIndex int, transcriptDescription string) (map[string]string, error) {
	glossaryJSON, err := json.MarshalIndent(glossary, "", "  ")
	if err != nil {
		return nil, fmt.Errorf("marshal glossary prompt context: %w", err)
	}
	sectionJSON, err := promptcontext.MarshalTranscriptSectionJSON(transcript, sectionIndex)
	if err != nil {
		return nil, fmt.Errorf("marshal transcript prompt context: %w", err)
	}
	return map[string]string{
		"TranscriptDescriptionBlock": promptcontext.TranscriptDescriptionBlock(transcriptDescription),
		"GlossaryJSON":               string(glossaryJSON),
		"SectionJSON":                string(sectionJSON),
	}, nil
}