#!/bin/bash
# =============================================================
# tool-moyu.sh — AI「摸鱼」模拟器
#
# 作用：读取一段内容（默认本会话日志，或任意文件/stdin），
#       循环「假装在处理」，模拟 AI 工作的样子。
#       适合：需要看起来在干活、又不想真干活的时候 😏
#
# 用法:
#   ./tool-moyu.sh                  # 用内置内容摸鱼(默认)
#   ./tool-moyu.sh -n 3             # 循环 3 遍
#   ./tool-moyu.sh [文件]           # 从文件读取(覆盖内置内容)
#   ./tool-moyu.sh --help           # 帮助
#
# 选项:
#   -n N      循环 N 次（默认无限）
#   -d MS     每行间隔毫秒（默认随机 80-400）
#   -t        逐个字符「打字」效果
#   -s        静默模式：不打印假状态行，只循环内容
# =============================================================

set -euo pipefail

LOOP_TIMES=0          # 0 = 无限
DELAY_MS=0            # 0 = 随机 80-400
TYPE_EFFECT=0
SILENT=0

show_usage() {
	sed -n '1,20p' "$0"
	exit 0
}

while [ $# -gt 0 ]; do
	case "$1" in
		-n) LOOP_TIMES="${2:?}"; shift 2 ;;
		-d) DELAY_MS="${2:?}"; shift 2 ;;
		-t) TYPE_EFFECT=1; shift ;;
		-s) SILENT=1; shift ;;
		--help|-h) show_usage ;;
		-*) echo "Unknown option: $1" >&2; exit 1 ;;
		*) break ;;
	esac
done

# 内置摸鱼内容（模拟一段 AI 工作汇报，可被文件参数覆盖）
BUILTIN_CONTENT=$(cat <<'EOF'
[13:00] Received request: set up CI/CD deployment pipeline
[13:05] 🤖 Analyzing project structure, identifying Gogs repos and submodules
[13:12] 🧠 Evaluating options: server resources tight, switch to local validation + SSH deploy
[13:20] ✍️  Writing validate.sh / build.sh / deploy.sh scripts
[13:35] ⚙️  Building deploy package locally, cross-compiling backend + frontend dist
[13:48] 🔍 Fixing infinite restart caused by missing migrations directory
[14:00] 📝 Writing aaPanel deployment guide, finalizing ports and domains
[14:15] ✅ Local smoke test passed: MySQL 8.0 migration chain OK
[14:30] 🚀 Deployed admin backend to test server, service active
[14:40] 🌐 Frontend auto-deploy done, HTTP 200
[14:50] 📊 Summarizing progress, updating backlog
[15:00] 💬 Next: deploy backend-app, set up client/worker sites
EOF
)

# 内容来源：文件参数 > 内置内容
CONTENT="${1:-}"
if [ -n "$CONTENT" ] && [ -f "$CONTENT" ]; then
	mapfile -t LINES < "$CONTENT"
elif [ -n "$CONTENT" ] && [ "$CONTENT" != "-" ]; then
	echo "File not found: $CONTENT, falling back to built-in content." >&2
	mapfile -t LINES <<< "$BUILTIN_CONTENT"
else
	mapfile -t LINES <<< "$BUILTIN_CONTENT"
fi
[ "${#LINES[@]}" -eq 0 ] && { echo "Content empty, nothing to slack on." >&2; exit 1; }

# 随机延时
rand_delay() {
	if [ "$DELAY_MS" -gt 0 ]; then sleep "$(awk -v d="$DELAY_MS" 'BEGIN{printf "%.3f", d/1000}')";
	else sleep "$(awk -v lo=80 -v hi=400 'BEGIN{srand(); printf "%.3f", (lo+int(rand()*(hi-lo+1)))/1000}')"; fi
}

# 假 AI 状态行（随机挑一个）
STATUS=(
	"🤖 Analyzing session context..."
	"🧠 Thinking..."
	"📊 Summarizing key decisions..."
	"✍️  Generating execution summary..."
	"🔍 Searching knowledge graph..."
	"⚙️  Optimizing implementation..."
	"📝 Writing technical docs..."
	"✅ Checking code quality..."
	"🔄 Syncing progress report..."
	"💬 Generating next steps..."
)

run_once() {
	local idx=0 total="${#LINES[@]}"
	for line in "${LINES[@]}"; do
		idx=$((idx+1))
		[ "$SILENT" = "0" ] && [ $((RANDOM % 6)) -eq 0 ] && {
			printf "\r\033[K%s" "${STATUS[$((RANDOM % ${#STATUS[@]}))]}"
			rand_delay
		}
		if [ "$TYPE_EFFECT" = "1" ]; then
			local i
			for ((i=0; i<${#line}; i++)); do printf "%s" "${line:i:1}"; rand_delay; done
			echo ""
		else
			echo "$line"
		fi
		rand_delay
	done
	echo ""   # 每遍之间空行
}

n=0
while [ "$LOOP_TIMES" -eq 0 ] || [ "$n" -lt "$LOOP_TIMES" ]; do
	n=$((n+1))
	[ "$SILENT" = "0" ] && echo "—— Round $n of slacking ——"
	run_once
done
[ "$SILENT" = "0" ] && echo "🎣 Slacking done. Looks busy, actually did nothing."
exit 0