#!/usr/bin/env bash
# Capture the LOADING screen's draw order. No navigation and no pad input at all:
# the loading screen appears on its own during the boot, which matters because
# (A) at the title only works about half the time.
#
# Why this screen: GP_TITLE's 10-element loading build declares its FULL-SCREEN
# element (`pgloading_baseeff`, 640x360 at 200%) SEVENTH of ten, behind the
# spinner and the "NOW LOADING" text. So it can tell "declaration order" apart
# from "background first" — which the main menu could not, because its
# background sits at index 1.
#
# F10 arms the capture (unconditionally, since 2026-08-19) and also opens the
# emulator's menu bar, so each press is followed by a click on the game surface.
set -u
export HOME=/sylph-home/re SDL_AUDIODRIVER=dummy DISPLAY=:98
SD="$(cd "$(dirname "$0")" && pwd)"
OUT="${1:-/sylph-home/re/loadcap}"
mkdir -p "$OUT"; rm -f "$OUT"/xenia_re_ui_draws_*.log
shot(){ screenshot "$1" >/dev/null 2>&1; }
alive(){ ps -o pid=,stat= -C xenia_canary 2>/dev/null | awk '$2 !~ /^Z/ {print $1}'; }

( cd "$OUT" && nohup run-canary --mem_watch=false \
    --ui_draw_capture_frames=4 --ui_draw_capture_max=6000 \
    --logged_profile_slot_0_xuid=B13EBABEBABEBABE \
    >"$OUT/canary.stdout" 2>"$OUT/canary.stderr" & )
sleep 8
until xdotool search --name "Xenia-canary" >/dev/null 2>&1; do
  [ -n "$(alive)" ] || { echo "EMULATOR GONE"; exit 4; }; sleep 1
done
win="$(xdotool search --name "Xenia-canary" | tail -1)"
xdotool windowactivate --sync "$win"; sleep 1

for i in $(seq 1 "${PRESSES:-28}"); do
  shot "$OUT/frame-$(printf '%02d' "$i").png"
  xdotool key F10; sleep 1
  xdotool mousemove 900 400 click 1
  s=$(python3 "$SD/screen_id.py" "$OUT/frame-$(printf '%02d' "$i").png" | awk '{print $1}')
  echo "press $i at ${SECONDS}s (screen=$s)"
  [ "$s" = "title" ] && { echo "title reached; stopping"; break; }
  sleep 5
done
ls "$OUT"/xenia_re_ui_draws_*.log 2>/dev/null | wc -l
echo "LOADING CAPTURE DONE (emulator left running)"