use std::io::{Error, ErrorKind};

use crate::{config::Cfg, modrinth::projects, get_current_list, db::{get_mods_from_list, get_versions}};

pub async fn update(config: Cfg) -> Result<(), Box<dyn std::error::Error>> {

    let current_list = get_current_list(config.clone())?;

    let mods = get_mods_from_list(config.clone(), current_list)?;

    let mut projects = projects(String::from(&config.apis.modrinth), mods.clone()).await;
    
    let mut versions = get_versions(config, mods)?;
    
    projects.sort_by_key(|p| p.id.clone());

    versions.sort_by_key(|v| v.mod_id.clone());
    
    let mut update_stack: Vec<String> = vec![];

    for (index, project) in projects.iter().enumerate() {

        let cmp_version = &versions[index];

        let p_id = &project.id;
        let v_id = &cmp_version.mod_id;

        if p_id != v_id { return Err(Box::new(Error::new(ErrorKind::Other, "COMPARE_SORTING_ERR"))); };
        println!("{}:{}", p_id, v_id);

        if project.versions.join("|") != cmp_version.versions {
            update_stack.push(String::from(&project.id));
        };
    };

    //TODO UPDATE
    dbg!(update_stack);

    Ok(())
}