#!/bin/bash
# lux_test.sh — LPC 照度闭环回归（LUX/LXT 帧 + API 回读校验）
# 前提：BRT 链路已通（loop_test.sh 全 PASS），触发器 #8/#9 已上传
# 用法: bash lux_test.sh        全量回归
# 依赖: /home/tonycao/rs485-lpc_test_rs485.py, curl
TTY=/dev/ttyUSB0
API=http://192.168.58.109/api/group
PASS=0; FAIL=0

send() { python3 /home/tonycao/rs485-lpc_test_rs485.py -p $TTY -b 9600 -s "$1" -w 0.5 > /dev/null; }
level() { curl -s $API | grep -o '"level":[0-9]*' | grep -o '[0-9]*'; }
check() { # $1=用例名 $2=期望level $3=容差
  local lv=$(level)
  local d=$((lv > $2 ? lv - $2 : $2 - lv))
  if [ $d -le ${3:-2} ]; then echo "PASS $1 -> level=$lv (expect $2±${3:-2})"; PASS=$((PASS+1));
  else echo "FAIL $1 -> level=$lv (expect $2±${3:-2})"; FAIL=$((FAIL+1)); fi
}

echo "== 初始化：BRT=050, LXT=000500 =="
send 'BRT=050\n';      sleep 2
send 'LXT=000500\n';   sleep 1
check "init BRT=050" 50

echo "== 死区：LUX=000520（偏差20<50，不应变化）=="
send 'LUX=000520\n';   sleep 3
check "deadband 520" 50

echo "== 超目标降光：LUX=002000（50→30，-20%步进）=="
send 'LUX=002000\n';   sleep 3
check "dim 2000" 30

echo "== 欠目标升光：LUX=000000（30→50，+20%步进上限）=="
send 'LUX=000000\n';   sleep 3
check "raise 0" 50

echo "== 上限限幅：LUX=000000 ×8（收敛100）=="
for i in $(seq 8); do send 'LUX=000000\n'; sleep 2; done
check "clamp max" 100

echo "== 下限限幅：LUX=200000 ×8（收敛5）=="
for i in $(seq 8); do send 'LUX=200000\n'; sleep 2; done
check "clamp min" 5

echo "== 恢复：BRT=050 =="
send 'BRT=050\n';      sleep 2
check "restore 50" 50

echo "RESULT: PASS=$PASS FAIL=$FAIL"