use crate::domain::CurrentTaskInfo;
use crate::repo::Repository;

pub fn execute(repo: impl Repository) {
    let tasks = match repo.get_tasks() {
        Ok(tasks) => tasks,
        Err(err) => return eprintln!("Cannot read tasks: {}", err),
    };

    let cur_task = match repo.get_current_task_opt() {
        Ok(cur_task) => cur_task,
        Err(err) => {
            return eprintln!("Cannot read current task: {}", err);
        }
    };

    for (i, task) in tasks.iter().enumerate() {
        let idx = i + 1;

        match cur_task {
            Some(CurrentTaskInfo { task_idx, .. }) if task_idx == idx => print!("> "),
            _ => print!("  "),
        }

        print!("{}. ", idx);
        if let Some(group) = task.group.as_ref() {
            print!("[{}]: ", group);
        }
        print!("{}", task.name);
        if task.link.is_some() {
            print!(" (link)");
        }
        println!();
    }
}