#!/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

# 内置随机内容池（摸鱼动作短语，运行时会随机抽取拼成“工作日志”）
POOL=(
	"🤖 Analyzing project structure..."
	"🧠 Evaluating deployment strategies..."
	"📊 Summarizing key decisions..."
	"✍️  Generating execution summary..."
	"🔍 Searching codebase knowledge graph..."
	"⚙️  Refactoring module boundary..."
	"📝 Drafting technical documentation..."
	"✅ Running unit tests..."
	"🔄 Syncing progress report..."
	"💬 Preparing next action items..."
	"🚀 Building release package..."
	"🌐 Deploying frontend static assets..."
	"🗄️  Migrating database schema..."
	"🔐 Validating security configuration..."
	"🧪 Executing smoke test..."
	"📈 Analyzing performance bottlenecks..."
	"🧩 Resolving dependency conflicts..."
	"🛠️  Fixing cross-compilation issue..."
	"📦 Packaging dist artifacts..."
	"🖥️  Restarting backend service..."
	"🔁 Iterating on review feedback..."
	"📚 Updating API documentation..."
	"🎯 Optimizing query performance..."
	"🧹 Cleaning up dead code..."
	"🔒 Hardening authentication flow..."
	"🌍 Localizing UI strings..."
	"⚡ Caching hot-path responses..."
	"📋 Verifying requirements coverage..."
	"🏗️  Scaffolding new module..."
	"🔔 Sending build notification..."
)

# 随机生成一段“工作日志”（无时间戳，行数与内容每次不同）
gen_random_content() {
	local count=$((6 + RANDOM % 8))   # 6-13 行
	LINES=()
	local i
	for ((i=0; i<count; i++)); do
		LINES+=("${POOL[$((RANDOM % ${#POOL[@]}))]}")
	done
}

# 内容来源：文件参数 > 随机生成
CONTENT="${1:-}"
if [ -n "$CONTENT" ] && [ -f "$CONTENT" ]; then
	mapfile -t LINES < "$CONTENT"
elif [ -n "$CONTENT" ] && [ "$CONTENT" != "-" ]; then
	echo "File not found: $CONTENT, falling back to random content." >&2
	gen_random_content
else
	gen_random_content
fi
[ "${#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))
	run_once
done
exit 0