package locations

import (
	"fmt"
	"sync"

	"gitea.maximumdirect.net/eric/notarius/internal/framework/llm"
	"gitea.maximumdirect.net/eric/notarius/internal/framework/promptfs"
	"gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/shared"
)

const promptAssetRoot = "assets/prompts"

var promptAssetManifest = shared.PromptAssetManifest{
	ModuleDir: PromptID,
	ModuleFiles: []promptfs.ModulePromptFile{
		{Name: "dnd.locations.normalize.yaml", Path: "assets/prompts/dnd.locations.normalize.yaml"},
		{Name: "task.md", Path: "assets/prompts/task.md"},
		{Name: "candidates.md", Path: "assets/prompts/candidates.md"},
	},
	SharedFiles: []string{"common-dnd-system.md", "common-dnd-entity-reconciliation.md", "common-dnd-transcript.md"},
}

func RegisterPromptAssets(registry *llm.AssetRegistry) error {
	promptFS, err := promptAssetManifest.PromptFS(embeddedAssets)
	if err != nil {
		return fmt.Errorf("prepare location normalization prompt assets: %w", err)
	}
	return registry.RegisterPromptFS(promptFS, promptAssetRoot)
}

func promptAssetMetadata() (string, error) {
	promptAssetHashOnce.Do(func() { promptAssetHash, promptAssetHashErr = promptAssetManifest.Hash(embeddedAssets) })
	return promptAssetHash, promptAssetHashErr
}

var (
	promptAssetHashOnce sync.Once
	promptAssetHash     string
	promptAssetHashErr  error
)