cargo-ai 0.2.0

//! Runtime behavior for `cargo ai new`.
use clap::ArgMatches;
use std::path::Path;

fn print_success(report: &super::scaffold::ScaffoldReport) {
    println!(
        "✅ Cargo-AI project created at: {}",
        report.project_root.display()
    );
    if report.metadata_written {
        println!("🧩 Wrote metadata: {}", report.metadata_path.display());
    } else {
        println!(
            "ℹ️ Metadata already present: {}",
            report.metadata_path.display()
        );
    }
    if let Some(template_path) = &report.template_output_path {
        println!("🧩 Applied template file: {}", template_path.display());
        println!(
            "🧩 Wrote companion template assets under: {}",
            report.project_root.join(".cargo-ai").display()
        );
    }
    println!("🌿 VCS setup: {}", report.git_setup);
}

/// Executes the `new` command flow from parsed CLI arguments.
pub fn run(sub_m: &ArgMatches) -> bool {
    if !super::scaffold::scaffold_gate_enabled(sub_m.get_flag("experimental")) {
        eprintln!("⚠️ {}", super::scaffold::scaffold_gate_message("new"));
        return false;
    }

    if let Err(error) = run_impl(sub_m) {
        eprintln!("❌ {}", error);
        return false;
    }
    true
}

fn run_impl(sub_m: &ArgMatches) -> Result<(), String> {
    let path = sub_m
        .get_one::<String>("path")
        .ok_or_else(|| "Missing path. Use `cargo ai new <path>`.".to_string())?;

    let template = match super::scaffold::ProjectTemplate::from_cli(
        sub_m.get_one::<String>("template").map(String::as_str),
    ) {
        Ok(template) => template,
        Err(error) => return Err(error),
    };

    let vcs_mode = match super::scaffold::VcsMode::from_cli(
        sub_m.get_one::<String>("vcs").map(String::as_str),
    ) {
        Ok(vcs_mode) => vcs_mode,
        Err(error) => return Err(error),
    };

    println!("Create Cargo-AI project: {path}");
    match super::scaffold::scaffold_new(Path::new(path), template, vcs_mode) {
        Ok(report) => {
            print_success(&report);
            Ok(())
        }
        Err(error) => Err(error),
    }
}