const fs = require('fs');
let code = fs.readFileSync('src/components/TerminalPanel.vue', 'utf8');

// Replace standard touch handlers to heavily trace
let newStart = `    onTouchKeyboardTouchStart = (event: TouchEvent) => {
      clearTouchScrollMomentum();
      if (event.touches.length > 0) {
        touchScrollLastY = event.touches[0]?.clientY || 0;
        touchScrollLastTime = performance.now();
        touchScrollVelocity = 0;
      }
      
      console.log("[Scroll Deep] 🟢 TOUCH START:", {
        touches: event.touches.length,
        isCancelable: event.cancelable,
        target: event.target?.nodeName,
        viewportScrollTop: viewportScroller?.scrollTop
      });
      
      if (!helperTextarea) return;
      if (focusKeyboardTimerId !== null) {
        window.clearTimeout(focusKeyboardTimerId);
        focusKeyboardTimerId = null;
        clearFocusKeyboardBlurRecover();
        focusKeyboardInProgress = false;
      }
      helperTextarea.readOnly = true;
    };`;

let newMove = `    onTouchKeyboardTouchMove = (event: TouchEvent) => {
      console.log(\`[Scroll Deep] 🔵 TOUCH MOVE | cancelable: \${event.cancelable} | target: \${event.target?.nodeName}\`);
      const hasSelection = hasActiveNativeSelectionInTerminal();
      if (hasSelection) {
        lastTouchAction = "PASS_NATIVE";
        event.stopImmediatePropagation();
        return;
      }
      
      const now = performance.now();
      const dt = now - touchScrollLastTime;
      const currentY = event.touches[0]?.clientY || 0;
      const dy = currentY - touchScrollLastY;
      
      // Stop xterm from intercepting this manually
      event.stopImmediatePropagation();

      if (viewportScroller && dt > 0) {
        const before = viewportScroller.scrollTop;
        if (dy !== 0) {
          // JS 强控滑动：完全跟手，零延迟
          viewportScroller.scrollTop -= dy;
        }

        // 计算物理滑动速度，用于释放后的动量
        const v = (-dy / dt) * 16; 
        if (touchScrollVelocity * v > 0) {
          touchScrollVelocity = touchScrollVelocity * 0.5 + v * 0.5;
        } else {
          touchScrollVelocity = v;
        }

        const touchMaxSpeed = 120;
        if (touchScrollVelocity > touchMaxSpeed) touchScrollVelocity = touchMaxSpeed;
        else if (touchScrollVelocity < -touchMaxSpeed) touchScrollVelocity = -touchMaxSpeed;
        
        if (Math.abs(dy) > 2) {
          console.log(\`[Scroll Deep] ➡️ 手指位移真实触发生效，Δy=\${dy.toFixed(1)}px | 渲染视口=\${before}→\${viewportScroller.scrollTop} | v=\${v.toFixed(2)}\`);
        }
      }

      touchScrollLastY = currentY;
      touchScrollLastTime = now;
    };`;

let newEnd = `    onTouchKeyboardTouchEnd = (event: TouchEvent) => {
      console.log(\`[Scroll Deep] 🔴 TOUCH END/CANCEL | cancelable: \${event.cancelable} | target: \${event.target?.nodeName} | 最终 scrollTop: \${viewportScroller?.scrollTop}\`);
      
      const threshold = 0.2;
      if (Math.abs(touchScrollVelocity) > threshold) {
        touchScrollVelocity *= 1.35;
        console.log(\`[Scroll Deep] 🚀 准备进行 JS 惯性滚动，起步速度=\${touchScrollVelocity.toFixed(2)}\`);
        runTouchScrollMomentum();
      } else {
        console.log(\`[Scroll Deep] 🛑 静止释放，不触发惯性\`);
      }
    };`;
    
code = code.replace(/onTouchKeyboardTouchStart = \(event: TouchEvent\) => \{[\s\S]*?\}\;\n    onTouchKeyboardTouchMove = \(event: TouchEvent\) => \{[\s\S]*?\}\;\n    onTouchKeyboardTouchEnd = \(\) => \{[\s\S]*?\}\;/m, 
  newStart + '\n' + newMove + '\n' + newEnd);

// Add pointer event logs
code = code.replace(/onTouchKeyboardPointerDown = \(event: PointerEvent\) => \{/, `onTouchKeyboardPointerDown = (event: PointerEvent) => {
      console.log("[Scroll Deep] 🟡 POINTER DOWN: ", { pointerId: event.pointerId, type: event.pointerType, target: event.target?.nodeName });`);

code = code.replace(/onTouchKeyboardPointerMove = \(event: PointerEvent\) => \{/, `onTouchKeyboardPointerMove = (event: PointerEvent) => {
      if (event.pointerType === "touch" && touchGatePointerId === event.pointerId) {
         // only log occasionally to avoid spam, we are heavily logging touchmove already
      }`);

code = code.replace(/onTouchKeyboardPointerUp = \(event: PointerEvent\) => \{/, `onTouchKeyboardPointerUp = (event: PointerEvent) => {
      console.log("[Scroll Deep] 🟠 POINTER UP: ", { pointerId: event.pointerId, type: event.pointerType });`);

code = code.replace(/onTouchKeyboardPointerCancel = \(event: PointerEvent\) => \{/, `onTouchKeyboardPointerCancel = (event: PointerEvent) => {
      console.log("[Scroll Deep] ⚫ POINTER CANCEL: ", { pointerId: event.pointerId, type: event.pointerType });`);
      
fs.writeFileSync('src/components/TerminalPanel.vue', code);