from typing import Any

from app.browser_manager import BrowserManager, BrowserSession


async def handle_input(
    manager: BrowserManager,
    session: BrowserSession,
    payload: dict[str, Any],
) -> dict[str, Any] | None:
    action = payload.get("action")
    if not action:
        return None

    manager.touch(session)
    page = session.page

    if action == "click":
        x = float(payload.get("x", 0))
        y = float(payload.get("y", 0))
        button = payload.get("button", "left")
        await page.mouse.click(x, y, button=button)
        return {"type": "ack", "action": action}

    if action == "dblclick":
        x = float(payload.get("x", 0))
        y = float(payload.get("y", 0))
        await page.mouse.dblclick(x, y)
        return {"type": "ack", "action": action}

    if action == "mousemove":
        return None

    if action == "wheel":
        delta_x = float(payload.get("deltaX", 0))
        delta_y = float(payload.get("deltaY", 0))
        await page.mouse.wheel(delta_x, delta_y)
        return {"type": "ack", "action": action}

    if action == "keydown":
        key = payload.get("key")
        if not key:
            return None
        await page.keyboard.down(key)
        return {"type": "ack", "action": action}

    if action == "keyup":
        key = payload.get("key")
        if not key:
            return None
        await page.keyboard.up(key)
        return {"type": "ack", "action": action}

    if action == "type":
        text = payload.get("text", "")
        if text:
            await page.keyboard.type(text)
        return {"type": "ack", "action": action}

    if action == "press":
        key = payload.get("key")
        if not key:
            return None
        await page.keyboard.press(key)
        return {"type": "ack", "action": action}

    return {"type": "error", "message": f"未知操作: {action}"}