import gradio as gr
import base64
import pyperclip

b64_state = None  # simpan sementara di server

def buffer_to_base64(binary_data: bytes):
    global b64_state
    # Encode bytes ke Base64 string
    b64_state = base64.b64encode(binary_data).decode("utf-8")
    return b64_state, f"[Buka hasil di tab baru](data:text/plain;base64,{b64_state})"

def copy_to_server():
    if b64_state:
        try:
            pyperclip.copy(b64_state)
            return "Base64 berhasil disalin ke clipboard **server**."
        except Exception as e:
            return f"Gagal menyalin ke clipboard server: {e}"
    return "Belum ada data yang dikonversi."

with gr.Blocks() as demo:
    gr.Markdown("# ESP32 Buffer to Base64 API (No JS)")
    with gr.Row():
        inp = gr.File(label="Upload Raw Buffer", type="binary")
    with gr.Row():
        out = gr.Textbox(label="Base64 Output", lines=6, interactive=True)
        link_out = gr.Markdown("")  # link buka tab baru
    with gr.Row():
        btn_convert = gr.Button("Convert")
        btn_copy = gr.Button("Copy (Server Clipboard)")

    # Tombol Convert → tampilkan Base64 & link tab baru
    btn_convert.click(buffer_to_base64, inputs=inp, outputs=[out, link_out])

    # Tombol Copy (server side)
    btn_copy.click(copy_to_server, outputs=out)

if __name__ == "__main__":
    demo.launch(server_name="0.0.0.0", server_port=7860)