#!/usr/bin/env bash
# SessionStart hook: 启动时输出项目关键上下文和集成提醒
# 不阻止会话启动，仅输出提示信息
set -euo pipefail

PROJECT_DIR="${AGENT_PROJECT_DIR:-$(pwd)}"
cd "$PROJECT_DIR"

echo ""
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo "  Gym Manage — 项目上下文"
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"

# 当前分支
BRANCH=$(git branch --show-current 2>/dev/null || echo "未知")
echo "  分支: $BRANCH"

# 变更文件统计
STAGED=$(git diff --cached --name-only 2>/dev/null | wc -l | tr -d ' ')
UNSTAGED=$(git diff --name-only 2>/dev/null | wc -l | tr -d ' ')
echo "  变更: ${STAGED} 个暂存, ${UNSTAGED} 个未暂存"

# 检测关键文件变更
CHANGED_FILES=$(git diff --name-only HEAD 2>/dev/null; git diff --cached --name-only 2>/dev/null; git ls-files --others --exclude-standard 2>/dev/null | sort -u)
HAS_API_CHANGE=""
HAS_WEB_API_CHANGE=""
HAS_UNIAPP_CHANGE=""

while IFS= read -r f; do
  [ -z "$f" ] && continue
  case "$f" in
    gym-manage-api/*.java) HAS_API_CHANGE="yes" ;;
    gym-manage-web/src/api/*.api.ts) HAS_WEB_API_CHANGE="yes" ;;
    gym-manage-uniapp/api/*.js|gym-manage-coach-uniapp/api/*.js) HAS_UNIAPP_CHANGE="yes" ;;
  esac
done <<< "$CHANGED_FILES"

# 集成提醒
if [ -n "$HAS_API_CHANGE" ] || [ -n "$HAS_WEB_API_CHANGE" ] || [ -n "$HAS_UNIAPP_CHANGE" ]; then
  echo ""
  echo "  ⚠️  检测到接口相关文件变更，请确保全链路完整性:"
  echo ""
  echo "  ┌─ Layer 1: Java Controller（gym-manage-api）─────────────┐"
  echo "  │  @RestController / @RequestMapping / Service 层          │"
  echo "  ├─ Layer 2: Web 请求层 ──────────────────────────────────┤"
  echo "  │  gym-manage-web/src/api/*.api.ts（请求路径/参数/类型）  │"
  echo "  ├─ Layer 3: UniApp 请求层 ───────────────────────────────┤"
  echo "  │  gym-manage-uniapp/api/*.js  +  coach-uniapp/api/*.js   │"
  echo "  ├─ Layer 4: 页面/组件 ───────────────────────────────────┤"
  echo "  │  gym-manage-web/src/views/*  +  uniapp pages/*          │"
  echo "  └─ Layer 5: 测试验证 ────────────────────────────────────┘"
  echo "      mvn test（后端）+ pnpm test（Web）+ flaky-scan（§22）"
  echo ""
  echo "  详细清单: AGENT.md（架构/命令/端口）+ AGENTS.md §13/§17"
  echo ""
fi

echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo ""