package image

import (
	"crypto/md5"
	"encoding/hex"
	"fmt"
	"strings"
	"time"
)

func (c *GeminiProvider) generateImageID(word string) string {
	hash := md5.Sum([]byte(word))
	return hex.EncodeToString(hash[:])[:8]
}

func (c *GeminiProvider) buildAttribution(result *SearchResult, prompt string) string {
	if result == nil {
		return ""
	}

	var attribution strings.Builder
	attribution.WriteString("Image generated by Google Gemini Nano Banana\n\n")
	fmt.Fprintf(&attribution, "Model: %s\n", c.modelName())
	fmt.Fprintf(&attribution, "Text model: %s\n", c.textModelName())
	aspectRatio := geminiAspectRatio
	if c != nil && c.config != nil && strings.TrimSpace(c.config.AspectRatio) != "" {
		aspectRatio = strings.TrimSpace(c.config.AspectRatio)
	}
	fmt.Fprintf(&attribution, "Aspect ratio: %s\n", aspectRatio)
	fmt.Fprintf(&attribution, "Size: %dx%d\n", result.Width, result.Height)
	if result.Description != "" {
		fmt.Fprintf(&attribution, "Result: %s\n", result.Description)
	}
	fmt.Fprintf(&attribution, "\nPrompt used:\n%s\n", prompt)
	fmt.Fprintf(&attribution, "\nGenerated at: %s\n", time.Now().Format("2006-01-02 15:04:05"))
	return attribution.String()
}