#!/usr/bin/env python3
"""Stop hook: 检查是否有逻辑改动未验证（未跑测试）、DDL 变更未建迁移"""
import json, re, subprocess, sys, os

project_dir = os.environ.get("CLAUDE_PROJECT_DIR", os.getcwd())

try:
    r = subprocess.run(
        ["git", "diff", "--name-only"],
        capture_output=True, text=True, timeout=10, cwd=project_dir,
    )
    staged = subprocess.run(
        ["git", "diff", "--name-only", "--cached"],
        capture_output=True, text=True, timeout=10, cwd=project_dir,
    )
    changed = set((r.stdout + "\n" + staged.stdout).strip().splitlines())
except Exception:
    sys.exit(0)

if not changed:
    sys.exit(0)

warnings = []

# --- 1. 逻辑改动未验证检查 ---
LOGIC_PATTERNS = [
    r"^apps/etl/connectors/feiqiu/(tasks|loaders|scd|orchestration|config|database|models|quality)/",
    r"^apps/backend/app/(routers|services|auth|schemas)/",
    r"^packages/shared/",
]

logic_files = [
    f for f in changed
    if any(re.search(p, f) for p in LOGIC_PATTERNS)
]

if logic_files:
    # 检查是否有测试结果文件被修改（间接判断是否跑了测试）
    # 更可靠的方式：检查变更中是否包含测试文件
    test_files = [f for f in changed if re.search(r"tests?/", f)]
    if not test_files:
        count = len(logic_files)
        warnings.append(
            f"本次会话修改了 {count} 个逻辑文件但未发现测试文件变更，"
            "建议运行相关测试验证（单元/集成/lint）"
        )

# --- 2. DDL 变更未建迁移检查 ---
schema_files = [f for f in changed if re.search(r"^db/[^/]+/schemas/.*\.sql$", f)]
migration_files = [f for f in changed if re.search(r"^db/[^/]+/migrations/.*\.sql$", f)]

if schema_files and not migration_files:
    # 也检查 untracked 的迁移文件
    try:
        untracked = subprocess.run(
            ["git", "ls-files", "--others", "--exclude-standard", "db/"],
            capture_output=True, text=True, timeout=10, cwd=project_dir,
        )
        new_migrations = [
            f for f in untracked.stdout.strip().splitlines()
            if re.search(r"^db/[^/]+/migrations/.*\.sql$", f)
        ]
    except Exception:
        new_migrations = []

    if not new_migrations:
        dbs = set()
        for f in schema_files:
            m = re.match(r"^db/([^/]+)/", f)
            if m:
                dbs.add(m.group(1))
        db_list = ", ".join(sorted(dbs))
        warnings.append(
            f"检测到 {db_list} 的 schemas/ DDL 已变更但无对应迁移脚本，"
            "建议在 db/*/migrations/ 创建增量迁移文件"
        )

# --- 输出 ---
if warnings:
    msg = "[verify-check] " + " | ".join(warnings)
    print(json.dumps({"systemMessage": msg}))