#!/usr/bin/env bash
# Kaisa pro-audio 基线门禁：检查 WirePlumber 片段、UCM Lua、卡 profile、sinks、IEC958。
# 退出码 0 = 通过，1 = 未满足（stdout 说明缺项）。
#
# 须在图形/用户会话下执行（pactl 连接 PipeWire-Pulse）；勿裸 root 占用普通用户 XDG_RUNTIME_DIR。
# 若用 sudo 调用本脚本，需带 SUDO_USER，脚本会经 sudo -u $SUDO_USER + XDG_RUNTIME_DIR 调用 pactl。
#
# 用法：./scripts/verify-kaisa-pro-audio.sh
set -uo pipefail

REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"

PACTL_PREFIX=()
WCONF_HOME="${HOME}"
if [[ $EUID -eq 0 && -n "${SUDO_USER:-}" ]] && command -v sudo &>/dev/null && id -u "$SUDO_USER" &>/dev/null; then
	_VU="$(id -u "$SUDO_USER")"
	if [[ -d "/run/user/${_VU}" ]]; then
		_VH="$(getent passwd "$SUDO_USER" | cut -d: -f6)"
		_VH="${_VH:-/home/$SUDO_USER}"
		PACTL_PREFIX=(sudo -u "$SUDO_USER" env XDG_RUNTIME_DIR="/run/user/${_VU}" HOME="$_VH")
		WCONF_HOME="$_VH"
	fi
fi

if [[ $EUID -eq 0 && ${#PACTL_PREFIX[@]} -eq 0 ]]; then
	echo "verify-kaisa-pro-audio: 当前为 root 且无法解析 SUDO_USER/会话；请用登录用户执行，或: sudo -u <用户> $0" >&2
	exit 1
fi

fail() { echo "verify-kaisa-pro-audio: FAIL — $*" >&2; exit 1; }
ok() { echo "verify-kaisa-pro-audio: OK — $*"; }

if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
	sed -n '2,15p' "$0" | sed 's/^# \{0,1\}//'
	exit 0
fi

if ! command -v pactl &>/dev/null; then
	fail "未找到 pactl（建议安装 pulseaudio-utils）"
fi
if ! command -v amixer &>/dev/null; then
	fail "未找到 amixer（alsa-utils）"
fi

if ! grep -q 'sof-rt5682' /proc/asound/cards 2>/dev/null; then
	fail "/proc/asound/cards 中无 sof-rt5682"
fi
ok "ALSA 卡 sof-rt5682 存在"

if [[ -f /usr/share/wireplumber/main.lua.d/60-kaisa-ucm.lua ]]; then
	fail "仍存在可加载的 /usr/share/wireplumber/main.lua.d/60-kaisa-ucm.lua（应改为 .disabled 或删除）"
fi
ok "60-kaisa-ucm.lua 未处于激活路径"

conf="${WCONF_HOME}/.config/wireplumber/wireplumber.conf.d/50-kaisa-sof-rt5682-hdmi.conf"
if [[ ! -f "$conf" ]]; then
	fail "缺少用户 WirePlumber 片段: $conf"
fi
ok "用户级 50-kaisa-sof-rt5682-hdmi.conf 存在"

wp_state="${WCONF_HOME}/.local/state/wireplumber/default-profile"
if [[ -f "$wp_state" ]] && grep 'cml_rt5682' "$wp_state" 2>/dev/null | grep -qF 'stereo-fallback'; then
	fail "WirePlumber 状态文件仍要求 cml_rt5682 使用 stereo-fallback（会在重启后顶掉 pro-audio）。请执行: ${REPO_ROOT}/scripts/strip-kaisa-default-profile-state.sh 后 systemctl --user restart wireplumber pipewire pipewire-pulse，或重新运行 apply-kaisa-pro-audio.sh"
fi

pactl_cards="$("${PACTL_PREFIX[@]}" pactl list cards 2>/dev/null)" || fail "pactl list cards 失败"
if ! grep -qF 'cml_rt5682' <<< "$pactl_cards"; then
	fail "pactl list cards 中无 cml_rt5682（PCI/卡名是否与仓库 conf 一致？）"
fi
# 在「含 cml_rt5682 的卡」块内取第一条 活动配置 / Active Profile（避免匹配到「配置文件」里的 pro-audio 行）
active_line="$(awk '
/^卡 #[0-9]+/ || /^Card #[0-9]+/ { in_c=0 }
/cml_rt5682/ { in_c=1 }
in_c && (/活动配置/ || /Active Profile/) { print; exit }
' <<< "$pactl_cards")"
if [[ -z "$active_line" ]]; then
	fail "无法在 cml_rt5682 卡块内解析 活动配置/Active Profile 行"
fi
if [[ "$active_line" != *pro-audio* ]]; then
	_al="$(echo "$active_line" | tr -d '\t' | sed 's/^[[:space:]]*//')"
	fail "该卡活动配置不是 pro-audio（当前: ${_al}）。请执行: ${REPO_ROOT}/scripts/apply-kaisa-pro-audio.sh（勿加 --verify-only）"
fi
ok "pactl 声卡活动配置为 pro-audio"

sinks="$("${PACTL_PREFIX[@]}" pactl list short sinks 2>/dev/null)" || fail "pactl list short sinks 失败"
for po in pro-output-0 pro-output-2 pro-output-3 pro-output-4; do
	if ! grep -F 'cml_rt5682' <<< "$sinks" | grep -qF "$po"; then
		fail "缺少 sink …${po}（pro-audio 下应暴露 Port1 + HDMI1/2/3）"
	fi
done
ok "pactl short sinks 含 pro-output-0/2/3/4（cml_rt5682）"

def="$("${PACTL_PREFIX[@]}" pactl get-default-sink 2>/dev/null)" || fail "pactl get-default-sink 失败"
if [[ "$def" != *pro-output-2* ]]; then
	fail "默认 sink 应为 …pro-output-2，当前: $def"
fi
ok "默认 sink 为 pro-output-2"

for i in 0 1 2; do
	out="$(amixer -c0 sget "IEC958",$i 2>/dev/null || true)"
	if ! grep -qiE '\[on\]|\[开启\]' <<< "$out"; then
		fail "IEC958',$i' 非开启状态（需 amixer -c0 sset 'IEC958',$i on）"
	fi
done
ok "IEC958',0/1/2 均为 on"

echo "verify-kaisa-pro-audio: 全部检查通过。"
exit 0