package main

import (
	"fmt"

	"u-desk/internal/api"
)

// requirePdfAPI 检查 pdfAPI 是否已初始化
func (a *App) requirePdfAPI() (*api.PdfAPI, error) {
	a.mu.Lock()
	defer a.mu.Unlock()
	if a.pdfAPI == nil {
		return nil, fmt.Errorf("PDF导出功能正在初始化中")
	}
	return a.pdfAPI, nil
}

// ExportPDF 导出PDF文件
func (a *App) ExportPDF(content string, title string, fileName string, fontSize int, pageWidth int, pageHeight int) (map[string]interface{}, error) {
	pdfAPI, err := a.requirePdfAPI()
	if err != nil {
		return map[string]interface{}{
			"success": false,
			"message": err.Error(),
		}, err
	}

	req := api.PdfExportRequest{
		Content:    content,
		Title:      title,
		FileName:   fileName,
		FontSize:   fontSize,
		PageWidth:  pageWidth,
		PageHeight: pageHeight,
	}

	result, err := pdfAPI.ExportMarkdownToPDF(req)
	if err != nil {
		return map[string]interface{}{
			"success": false,
			"message": err.Error(),
		}, err
	}

	return map[string]interface{}{
		"success": result.Success,
		"message": result.Message,
		"path":    result.Path,
		"size":    result.Size,
	}, nil
}

// SelectPDFSaveDirectory 选择PDF保存目录
func (a *App) SelectPDFSaveDirectory() (string, error) {
	pdfAPI, err := a.requirePdfAPI()
	if err != nil {
		return "", err
	}

	return pdfAPI.SelectDirectory()
}