#!/usr/bin/env bash
#
# fps-check.sh — measure UI smoothness of JTube TV on a device while programmatically
# scrolling the home rows the same way a remote would move focus.
#
# Usage: fps-check.sh [serial]          default serial: emulator-5554
# Prereqs: app installed + logged in, on the Home destination.
set -u
DEV="${1:-emulator-5554}"
ADB=~/Android/Sdk/platform-tools/adb

echo "device $DEV: resetting frame stats"
$ADB -s "$DEV" shell am force-stop net.jeena.jtubetv
sleep 1
$ADB -s "$DEV" shell am start -n net.jeena.jtubetv/.MainActivity >/dev/null
sleep 15 # give images time to load + settle

# from top bar (search focused) DOWN into the first row, then traverse right across
# the row: each RIGHT triggers one (animated) row scroll.
$ADB -s "$DEV" shell input keyevent KEYCODE_DPAD_DOWN; sleep 1
$ADB -s "$DEV" shell dumpsys gfxinfo net.jeena.jtubetv reset > /dev/null
for i in $(seq 1 12); do
  $ADB -s "$DEV" shell input keyevent KEYCODE_DPAD_RIGHT
  sleep 1.2
done
$ADB -s "$DEV" shell input keyevent KEYCODE_DPAD_DOWN; sleep 1.5
for i in $(seq 1 6); do
  $ADB -s "$DEV" shell input keyevent KEYCODE_DPAD_LEFT
  sleep 1.2
done

echo "--- gfxinfo (home rows scrolling, 18 focus moves) ---"
$ADB -s "$DEV" shell dumpsys gfxinfo net.jeena.jtubetv | python3 -c "
import sys, re
out = sys.stdin.read()
m = re.search(r'\*\* Graphics info\s*\n(.*)', out, re.S)
block = m.group(1) if m else out
def grab(name):
    mm = re.search(name + r'[^\d]*(\S+)', block)
    return mm.group(1) if mm else '?'
total = grab('Total frames rendered')
janky = grab('Janky frames')
print('Total frames rendered:', total)
print('Janky frames:', janky)
p50, p90, p95, p99 = grab('50th percentile'), grab('90th percentile'), grab('95th percentile'), grab('99th percentile')
print('frame time percentiles (ms): p50=%s p90=%s p95=%s p99=%s' % (p50, p90, p95, p99))
"