#!/usr/bin/env python3
"""课程成绩异常诊断与报告生成 - CLI 入口（占位骨架）"""

import sys
from pathlib import Path

# 占位：开发者后续接入 jiangchang_skill_core
# from jiangchang_skill_core import ...

BASE_DIR = Path(__file__).resolve().parent.parent


def health():
    """运行检查（占位）。"""
    print(f"analyze-grade-distribution-aa health check (placeholder)")
    print(f"base_dir: {BASE_DIR}")
    return 0


def version():
    """查看版本（占位）。"""
    print("analyze-grade-distribution-aa v1.0.1")
    return 0


def config_path():
    """查看配置位置（占位）。"""
    print(f"{BASE_DIR / '.env'}")
    return 0


def init_db():
    """初始化数据库（占位）。"""
    print("init-db: 后续由开发者按 references/SCHEMA.md 实现")
    return 0


def analyze_grade_distribution(course_id: str):
    """分析这份成绩。"""
    print(f"analyze-grade-distribution: course_id={course_id} (待开发者实现)")
    return 0


def batch_analyze_courses(semester_id: str):
    """批量分析本学期。"""
    print(f"batch-analyze-courses: semester_id={semester_id} (待开发者实现)")
    return 0


def render_html(report_id: str):
    """查看分析报告。"""
    print(f"render-html: report_id={report_id} (待开发者实现)")
    return 0


def flag_high_risk_course(report_id: str):
    """标记为高风险课程。"""
    print(f"flag-high-risk-course: report_id={report_id} (待开发者实现)")
    return 0


def sync_historical_grades():
    """同步历史成绩。"""
    print("sync-historical-grades (待开发者实现)")
    return 0


COMMANDS = {
    "health": health,
    "version": version,
    "config-path": config_path,
    "init-db": init_db,
    "analyze-grade-distribution": analyze_grade_distribution,
    "batch-analyze-courses": batch_analyze_courses,
    "render-html": render_html,
    "flag-high-risk-course": flag_high_risk_course,
    "sync-historical-grades": sync_historical_grades,
}


def main(argv=None):
    argv = argv or sys.argv[1:]
    if not argv or argv[0] not in COMMANDS:
        print("Usage: python scripts/main.py <command>")
        print("Commands:", ", ".join(COMMANDS.keys()))
        return 1
    return COMMANDS[argv[0]](*argv[1:])


if __name__ == "__main__":
    sys.exit(main())