#!/usr/bin/env sh
set -eu

ROOT_DIR="$(CDPATH= cd -- "$(dirname "$0")/.." && pwd)"
KINDLE_TARGET="kindle"
THEME_FILTER=""
ORIENTATION_FILTER=""
CLOCK_REGION_JSON="$ROOT_DIR/calendar/dist/clock-region.json"

print_usage() {
  cat <<'EOF'
用法：
  sh scripts/sync-layered-clock-to-kindle.sh [host] [选项]

选项：
      --theme <theme-id>         只同步指定主题
      --orientation <value>      只同步指定方向；必须和 --theme 一起使用
  -h, --help                     查看帮助

示例：
  sh scripts/sync-layered-clock-to-kindle.sh kindle
  sh scripts/sync-layered-clock-to-kindle.sh kindle --theme simple
  sh scripts/sync-layered-clock-to-kindle.sh kindle --theme simple --orientation portrait
EOF
}

while [ "$#" -gt 0 ]; do
  case "$1" in
    --theme)
      shift
      THEME_FILTER=${1:?"missing theme id"}
      ;;
    --orientation)
      shift
      ORIENTATION_FILTER=${1:?"missing orientation"}
      ;;
    -h|--help)
      print_usage
      exit 0
      ;;
    *)
      KINDLE_TARGET=$1
      ;;
  esac
  shift
done

if [ -n "$ORIENTATION_FILTER" ] && [ -z "$THEME_FILTER" ]; then
  echo "--orientation 必须和 --theme 一起使用。" >&2
  exit 1
fi

cd "$ROOT_DIR/calendar"
if [ -n "$THEME_FILTER" ]; then
  if [ -n "$ORIENTATION_FILTER" ]; then
    npm run export:themes -- --theme "$THEME_FILTER" --orientation "$ORIENTATION_FILTER" >/dev/null
    CLOCK_REGION_JSON="$ROOT_DIR/calendar/dist/themes/$THEME_FILTER/$ORIENTATION_FILTER/kindlebg.clock-region.json"
  else
    npm run export:themes -- --theme "$THEME_FILTER" >/dev/null
    CLOCK_REGION_JSON=""
  fi
else
  npm run export:themes >/dev/null
fi
cd "$ROOT_DIR"

clock_region_value() {
  key=$1
  python3 - "$CLOCK_REGION_JSON" "$key" <<'PY'
import json
import pathlib
import sys

path = pathlib.Path(sys.argv[1])
key = sys.argv[2]

if not path.exists():
    defaults = {"x": 262, "y": 55, "width": 220, "height": 220}
    print(defaults[key])
    raise SystemExit(0)

data = json.loads(path.read_text())
print(data[key])
PY
}

sync_dashboard_runtime() {
  rsync -av --no-o --no-g \
    "$ROOT_DIR/dash/src/start.sh" \
    "$ROOT_DIR/dash/src/dash.sh" \
    "$ROOT_DIR/dash/src/stop.sh" \
    "$ROOT_DIR/dash/src/launch-from-kual.sh" \
    "$ROOT_DIR/dash/src/launch-theme-from-kual.sh" \
    "$ROOT_DIR/dash/src/switch-theme.sh" \
    "$KINDLE_TARGET":/mnt/us/dashboard/

  rsync -av --no-o --no-g \
    "$ROOT_DIR/dash/src/local/env.sh" \
    "$ROOT_DIR/dash/src/local/fetch-dashboard.sh" \
    "$ROOT_DIR/dash/src/local/clock-index.sh" \
    "$ROOT_DIR/dash/src/local/render-clock.lua" \
    "$ROOT_DIR/dash/src/local/render-clock.sh" \
    "$ROOT_DIR/dash/src/local/touch-home-service.sh" \
    "$ROOT_DIR/dash/src/local/theme-menu-service.sh" \
    "$ROOT_DIR/dash/src/local/theme-json.lua" \
    "$ROOT_DIR/dash/src/local/theme-sync.sh" \
    "$KINDLE_TARGET":/mnt/us/dashboard/local/

  ssh "$KINDLE_TARGET" "chmod +x /mnt/us/dashboard/start.sh /mnt/us/dashboard/dash.sh /mnt/us/dashboard/stop.sh /mnt/us/dashboard/launch-from-kual.sh /mnt/us/dashboard/launch-theme-from-kual.sh /mnt/us/dashboard/switch-theme.sh /mnt/us/dashboard/local/fetch-dashboard.sh /mnt/us/dashboard/local/clock-index.sh /mnt/us/dashboard/local/render-clock.sh /mnt/us/dashboard/local/touch-home-service.sh /mnt/us/dashboard/local/theme-menu-service.sh /mnt/us/dashboard/local/theme-sync.sh"
  ssh "$KINDLE_TARGET" "mkdir -p /mnt/us/dashboard/local/state"
  ssh "$KINDLE_TARGET" "date '+%s' >/mnt/us/dashboard/local/state/background-updated-at"
}

sync_kual_extension() {
  ssh "$KINDLE_TARGET" "mkdir -p /mnt/us/extensions/kindle-dash"
  rsync -av --no-o --no-g \
    "$ROOT_DIR/dash/KUAL/kindle-dash/" \
    "$KINDLE_TARGET":/mnt/us/extensions/kindle-dash/
}

sync_theme_bundle() {
  rsync -av --no-o --no-g \
    "$ROOT_DIR/calendar/dist/themes.json" \
    "$KINDLE_TARGET":/mnt/us/dashboard/

  if [ -z "$THEME_FILTER" ]; then
    if [ -f "$ROOT_DIR/calendar/dist/kindlebg.png" ]; then
      rsync -av --no-o --no-g \
        "$ROOT_DIR/calendar/dist/kindlebg.png" \
        "$KINDLE_TARGET":/mnt/us/dashboard/
    fi

    rsync -av --no-o --no-g \
      "$ROOT_DIR/calendar/dist/themes/" \
      "$KINDLE_TARGET":/mnt/us/dashboard/themes/
    return
  fi

  rsync -av --no-o --no-g \
    "$ROOT_DIR/calendar/dist/themes/$THEME_FILTER.json" \
    "$KINDLE_TARGET":/mnt/us/dashboard/themes/

  if [ -n "$ORIENTATION_FILTER" ]; then
    ssh "$KINDLE_TARGET" "mkdir -p /mnt/us/dashboard/themes/$THEME_FILTER/$ORIENTATION_FILTER"
    rsync -av --no-o --no-g \
      "$ROOT_DIR/calendar/dist/themes/$THEME_FILTER/$ORIENTATION_FILTER/" \
      "$KINDLE_TARGET":/mnt/us/dashboard/themes/$THEME_FILTER/$ORIENTATION_FILTER/
    return
  fi

  ssh "$KINDLE_TARGET" "mkdir -p /mnt/us/dashboard/themes/$THEME_FILTER"
  rsync -av --no-o --no-g \
    "$ROOT_DIR/calendar/dist/themes/$THEME_FILTER/" \
    "$KINDLE_TARGET":/mnt/us/dashboard/themes/$THEME_FILTER/
}

update_default_clock_region_env() {
  if [ -z "$CLOCK_REGION_JSON" ] || [ ! -f "$CLOCK_REGION_JSON" ]; then
    echo "Skipped CLOCK_REGION_* env update: no single background region selected"
    return
  fi

  clock_x=$(clock_region_value x)
  clock_y=$(clock_region_value y)
  clock_width=$(clock_region_value width)
  clock_height=$(clock_region_value height)

  ssh "$KINDLE_TARGET" "tmp=\$(mktemp) && awk \
    -v x='$clock_x' \
    -v y='$clock_y' \
    -v w='$clock_width' \
    -v h='$clock_height' \
    'BEGIN { seen_x=0; seen_y=0; seen_w=0; seen_h=0 } \
     /^export CLOCK_REGION_X=/ { print \"export CLOCK_REGION_X=\" x; seen_x=1; next } \
     /^export CLOCK_REGION_Y=/ { print \"export CLOCK_REGION_Y=\" y; seen_y=1; next } \
     /^export CLOCK_REGION_WIDTH=/ { print \"export CLOCK_REGION_WIDTH=\" w; seen_w=1; next } \
     /^export CLOCK_REGION_HEIGHT=/ { print \"export CLOCK_REGION_HEIGHT=\" h; seen_h=1; next } \
     { print } \
     END { \
       if (!seen_x) print \"export CLOCK_REGION_X=\" x; \
       if (!seen_y) print \"export CLOCK_REGION_Y=\" y; \
       if (!seen_w) print \"export CLOCK_REGION_WIDTH=\" w; \
       if (!seen_h) print \"export CLOCK_REGION_HEIGHT=\" h; \
     }' /mnt/us/dashboard/local/env.sh >\"\$tmp\" && cat \"\$tmp\" >/mnt/us/dashboard/local/env.sh && rm -f \"\$tmp\""
}

sync_dashboard_runtime
sync_theme_bundle
sync_kual_extension
update_default_clock_region_env

if [ -n "$THEME_FILTER" ]; then
  if [ -n "$ORIENTATION_FILTER" ]; then
    echo "Layered clock runtime synced to $KINDLE_TARGET (theme=$THEME_FILTER orientation=$ORIENTATION_FILTER)"
  else
    echo "Layered clock runtime synced to $KINDLE_TARGET (theme=$THEME_FILTER)"
  fi
else
  echo "Layered clock runtime synced to $KINDLE_TARGET"
fi