api.addButtonToToolbar({
    title: 'import',
    icon: 'import',
    shortcut: 'ctrl+i',
    action: async function() {
        
        const noteId = await api.getActiveContextNote().noteId
        
        await api.runOnBackend((noteId) => {
            const {dialog} = require('electron')
            const {readFileSync} = require('fs')
            const {basename,extname} = require('path')
            const mimeTypes = require('mime-types')
            // extensions missing in mime-db
            const EXTENSION_TO_MIME = {
                ".c": "text/x-csrc",
                ".cs": "text/x-csharp",
                ".clj": "text/x-clojure",
                ".erl": "text/x-erlang",
                ".hrl": "text/x-erlang",
                ".feature": "text/x-feature",
                ".go": "text/x-go",
                ".groovy": "text/x-groovy",
                ".hs": "text/x-haskell",
                ".lhs": "text/x-haskell",
                ".http": "message/http",
                ".kt": "text/x-kotlin",
                ".m": "text/x-objectivec",
                ".py": "text/x-python",
                ".rb": "text/x-ruby",
                ".scala": "text/x-scala",
                ".swift": "text/x-swift"
            }

            function getMime(fileName) {
                if (fileName.toLowerCase() === 'dockerfile') {
                    return "text/x-dockerfile";
                }

                const ext = extname(fileName).toLowerCase();

                if (ext in EXTENSION_TO_MIME) {
                    return EXTENSION_TO_MIME[ext];
                }

                return mimeTypes.lookup(fileName);
            }
            const files=dialog.showOpenDialogSync({ properties: ['openFile', 'multiSelections'] })
            if(undefined!== files&&undefined!==noteId ){
                for (const file of files){
                    const data=readFileSync(file)
                    const originalName=basename(file)
                    const {note} = api.createNewNote({
                        parentNoteId:noteId,
                        title:originalName,
                        content:data,
                        type:'file',
                        mime:getMime(originalName)
                    })
                    note.addLabel("originalFileName", originalName);
                }
            }
            return files;
            
        },[noteId])
        await api.waitUntilSynced()
        api.reloadNotes([noteId]);
    }
});