//! 换座位命令行入口(开发期对照用;镜像 Python CLI 参数)。
//! 用法:
//!   cargo run -p toolbox-core --example seating_cli -- <xlsx> <班级> <样式> [策略] [--mixed] [--count N] [--seed S] [--output O]

use std::path::PathBuf;
use toolbox_core::seating::{run_seating, SeatingInput, Strategy};

fn main() {
    let args: Vec<String> = std::env::args().collect();
    if args.len() < 4 {
        eprintln!("用法: seating_cli <xlsx> <班级> <样式> [good-with-good|good-with-bad|random] [--mixed] [--count N] [--seed S] [--output O]");
        std::process::exit(2);
    }
    let excel = PathBuf::from(&args[1]);
    let class = args[2].clone();
    let style = args[3].clone();
    let mut strategy = Strategy::GoodWithGood;
    let mut allow_mixed = false;
    let mut count = 1usize;
    let mut seed: Option<u64> = None;
    let mut output: Option<PathBuf> = None;

    let mut i = 4;
    while i < args.len() {
        match args[i].as_str() {
            "--mixed" => allow_mixed = true,
            "--count" => {
                i += 1;
                count = args[i].parse().unwrap_or(1);
            }
            "--seed" => {
                i += 1;
                seed = Some(args[i].parse().expect("seed 必须为数字"));
            }
            "--output" => {
                i += 1;
                output = Some(PathBuf::from(&args[i]));
            }
            "good-with-good" => strategy = Strategy::GoodWithGood,
            "good-with-bad" => strategy = Strategy::GoodWithBad,
            "random" => strategy = Strategy::Random,
            _ => {
                eprintln!("未知参数: {}", args[i]);
                std::process::exit(2);
            }
        }
        i += 1;
    }

    let inp = SeatingInput {
        excel_path: excel,
        sheet: None,
        class_name: class,
        style,
        strategy,
        allow_mixed,
        count,
        seed,
        output,
    };

    match run_seating(&inp) {
        Ok(res) => {
            for l in &res.log {
                println!("{}", l);
            }
        }
        Err(e) => {
            eprintln!("{}", e);
            std::process::exit(1);
        }
    }
}