use std::path::PathBuf;

use crate::cli::print_task_detail;
use crate::repo::{self, Repository};

#[derive(clap::Args)]
pub struct Args {
    #[clap(short, long)]
    name: Option<String>,

    #[clap(short, long)]
    group: Option<String>,
    #[clap(long)]
    no_group: bool,

    #[clap(short, long)]
    link: Option<String>,
    #[clap(long)]
    no_link: bool,

    #[clap(short, long)]
    path: Option<PathBuf>,
    #[clap(long)]
    no_path: bool,

    idx: usize,
}

pub fn execute(repo: impl Repository, args: Args) {
    match repo.get_current_task_opt() {
        Ok(Some(_)) => {
            return eprintln!("You can edit task only when you don't have an active task, yet")
        }
        Err(err) => {
            return eprintln!("Cannot read current task: {}", err);
        }
        _ => {}
    }

    let res = repo.update_task(
        args.idx,
        repo::UpdateTaskData {
            name: args.name,
            group: args.no_group.then(|| None).or_else(|| args.group.map(Some)),
            link: args.no_link.then(|| None).or_else(|| args.link.map(Some)),
            path: args
                .no_path
                .then(|| None)
                .or_else(|| args.path.map(std::fs::canonicalize).transpose().ok()),
        },
    );
    match res {
        Ok(task) => {
            println!("The task was changed successfully");
            print_task_detail(&task);
        }
        Err(err) => {
            eprintln!("Cannot update the task: {}", err);
        }
    }
}