//! doctor command: render the environment report, optionally with --fix.

use super::*;
use crate::doctor::{self, Status};
use crate::output::{print_json, status_style, Table};
use crate::runner::SystemRunner;
use anyhow::Result;

pub fn run(app: &App, fix: bool) -> Result<i32> {
    if fix {
        let repaired = doctor::fix(app)?;
        for r in &repaired {
            app.log.success(r);
        }
        let runner = SystemRunner::new(false, app.cli.verbose, &app.log);
        for r in doctor::install_missing_tools(app, &runner)? {
            app.log.success(r);
        }
        app.log.info("run 'am doctor' again to verify");
        return Ok(0);
    }
    // The doctor report probes real tools, even under --dry-run.
    let runner = SystemRunner::new(false, false, &app.log);
    let report = doctor::run(app, &runner);
    if app.json() {
        print_json(&report.checks);
        return Ok(if report.ok() { 0 } else { 1 });
    }
    let color = app.color();
    let mut table = Table::new(vec!["CHECK", "STATUS", "DETAIL"]);
    for c in &report.checks {
        let status = match c.status {
            Status::Ok => status_style("ok", color),
            Status::Warn => status_style("warn", color),
            Status::Error => status_style("error", color),
        };
        table.row(vec![c.name.clone(), status, c.detail.clone()]);
    }
    print!("{}", table.render());
    if report.problems() > 0 {
        app.log
            .warn(&format!("{} problem(s) found — 'am doctor --fix' repairs what it can", report.problems()));
    } else {
        app.log.success("environment looks good");
    }
    Ok(if report.ok() { 0 } else { 1 })
}