package prompts

import (
	"os"
	"path/filepath"
)

// LoadAnalysisPrompt returns the path and content of the best matching prompt.
// Search order: {projectRoot}/.grokkit/prompts/{language}.md → ~/.config/grokkit/prompts/{language}.md
func LoadAnalysisPrompt(projectRoot, language string) (path, content string, err error) {
	if language == "" {
		language = "unknown"
	}

	// 1. Project-local (preferred)
	localPath := filepath.Join(projectRoot, ".grokkit", "prompts", language+".md")
	if data, readErr := os.ReadFile(localPath); readErr == nil {
		return localPath, string(data), nil
	}

	// 2. Global config
	home := os.Getenv("HOME")
	if home == "" {
		home = "/root" // fallback for containers
	}
	globalPath := filepath.Join(home, ".config", "grokkit", "prompts", language+".md")
	if data, readErr := os.ReadFile(globalPath); readErr == nil {
		return globalPath, string(data), nil
	}

	return "", "", os.ErrNotExist
}