local current_preview = nil

local search_query = ""
local last_search_query = ""
local search_cache = {}
local debounce_timer = 0
local drop_file = 0

function directory_contains_matching_files(path)
    if search_cache[path] ~= nil then
        return search_cache[path]
    end

    local idx = 0
    local contains_matches = false
    while true do
        local file = reaper.EnumerateFiles(path, idx)
        if not file then break end

        if not file:match("^%.") then
            if (file:match("%.wav$") or file:match("%.mp3$")) and (search_query == "" or file:lower():find(search_query:lower(), 1, true)) then
                contains_matches = true
                break
            end
        end

        idx = idx + 1
    end

    if not contains_matches then
        idx = 0
        while true do
            local subdir = reaper.EnumerateSubdirectories(path, idx)
            if not subdir then break end

            if not subdir:match("^%.") then
                local full_path = path .. "/" .. subdir
                if directory_contains_matching_files(full_path) then
                    contains_matches = true
                    break
                end
            end

            idx = idx + 1
        end
    end

    search_cache[path] = contains_matches
    return contains_matches
end

function create_directory_tree(path, depth)
    if depth > 5 then return end

    local idx = 0
    while true do
        local subdir = reaper.EnumerateSubdirectories(path, idx)
        if not subdir then break end

        if not subdir:match("^%.") then
            local full_path = path .. "/" .. subdir

            if directory_contains_matching_files(full_path) then
                if reaper.ImGui_TreeNode(ctx, subdir) then
                    create_directory_tree(full_path, depth + 1)
                    reaper.ImGui_TreePop(ctx)
                end
            end
        end

        idx = idx + 1
    end

    idx = 0
    while true do
        local file = reaper.EnumerateFiles(path, idx)
        if not file then break end

        if not file:match("^%.") then
            if (file:match("%.wav$") or file:match("%.mp3$")) and (search_query == "" or file:lower():find(search_query:lower(), 1, true)) then
                if reaper.ImGui_Selectable(ctx, file) then
                    preview_file(path .. "/" .. file)
                end
                
                if reaper.ImGui_BeginDragDropSource(ctx) then
                    reaper.ImGui_SetDragDropPayload(ctx, "DND_FILENAME", path .. "/" .. file)
                    _, _, drop_file = reaper.ImGui_GetDragDropPayload(ctx)
                    reaper.ImGui_Text(ctx, file)
                    reaper.ImGui_EndDragDropSource(ctx)
                --elseif drop_file ~= 0 then

                elseif not reaper.ImGui_IsMouseDown(ctx, 0) and drop_file ~= 0 then
                reaper.ShowConsoleMsg("sup")
                    add_file_to_timeline(drop_file)
                    drop_file = 0
                end
                
                
                --if reaper.ImGui_BeginDragDropTarget(ctx) then
                    --reaper.ShowConsoleMsg("oi")
                    
                        --reaper.JS_Window_SetFocus(reaper.GetMainHwnd())
                        --add_file_to_timeline(file)
                  
                    --local payload = reaper.ImGui_AcceptDragDropPayload(ctx, "DND_FILENAME")
                    --if payload then
                        --local drop_file = payload
                        --add_file_to_timeline(drop_file)
                    --end
                    --reaper.ImGui_EndDragDropTarget(ctx)
                --end
            end
        end

        idx = idx + 1
    end
end

function preview_file(file)
    if current_preview then
        reaper.CF_Preview_StopAll()
        current_preview = nil
    end

    local source = reaper.PCM_Source_CreateFromFile(file)
    current_preview = reaper.CF_CreatePreview(source)
    local play_success = reaper.CF_Preview_Play(current_preview)
    if not play_success then
        reaper.ShowMessageBox("Failed to play preview: " .. file, "Error", 0)
    end
end

function add_file_to_timeline(file)
    reaper.PreventUIRefresh(1)
    local track = reaper.GetSelectedTrack(0, 0)
    if not track then
        reaper.Main_OnCommand(40001, 0) -- Insert new track
        track = reaper.GetSelectedTrack(0, 0)
    end

    local item = reaper.AddMediaItemToTrack(track)
    local take = reaper.AddTakeToMediaItem(item)
    local source = reaper.PCM_Source_CreateFromFile(file)
    reaper.SetMediaItemTake_Source(take, source)
    reaper.SetMediaItemPosition(item, reaper.GetCursorPosition(), false)
    reaper.UpdateArrange()
    reaper.PreventUIRefresh(-1)
end

function main()
    reaper.ImGui_SetNextWindowDockID(ctx, -7)
    local retval, is_open = reaper.ImGui_Begin(ctx, "Media Explorer", true)

    if is_open then
        local changed, text = reaper.ImGui_InputText(ctx, "Search", search_query, 256)
        if changed then
            search_query = text
            debounce_timer = reaper.time_precise() + 0.3
        end

        if reaper.time_precise() > debounce_timer then
            if search_query ~= last_search_query then
                search_cache = {}
                last_search_query = search_query
            end

            create_directory_tree("E:\\Sample Packs\\COLLECTION", 0)
        end

        reaper.defer(main)
    end

    reaper.ImGui_End(ctx)
end

ctx = reaper.ImGui_CreateContext("ctx")
main()


create a second search box, gve me the full script