//
use std::path::Path;

use anyhow::{Context, Result};
use model::{Config, FoundMarkers, Line, Marker};
use patterns::{issue_pattern, marker_pattern};

mod model;
mod patterns;

fn main() -> Result<()> {
    println!("Forgejo TODO Checker!");

    let config = Config::builder()
        .fs(kxio::fs::new(
            std::env::var("GITHUB_WORKSPACE")
                .context("GITHUB_WORKSPACE")?
                .into(),
        ))
        .repo(std::env::var("GITHUB_REPOSITORY").context("GITHUB_REPOSITORY")?)
        .server(std::env::var("GITHUB_SERVER_URL").context("GITHUB_SERVER_URL")?)
        .prefix_pattern(marker_pattern()?)
        .issue_pattern(issue_pattern()?)
        .maybe_auth_token(std::env::var("REPO_TOKEN").ok())
        .build();

    println!("Repo: {}", config.repo());
    println!("Prefix: {}", config.prefix_pattern());
    println!("Issues: {}", config.issue_pattern());

    let mut found_markers = FoundMarkers::default();

    for file in ignore::Walk::new(config.fs().base()).flatten() {
        let path = file.path();
        if config.fs().path_is_file(path)? {
            scan_file(path, &config, &mut found_markers)?;
        }
    }

    println!("{found_markers:#?}");

    // TODO: add authentication when provided
    // let issues = ureq::get(&api).call()?.into_string()?;
    // TODO: parse issues to get list of open issue numbers

    // TODO: loop over list of expected issues and drop any where they do exist and are open
    // TODO: if remaining list is not empty - add all to error list
    //
    // TODO: if error list is empty - exit okay
    // TODO: if error list is not empty - log erros and exit not okay

    Ok(())
}

fn scan_file(file: &Path, config: &Config, found_markers: &mut FoundMarkers) -> Result<()> {
    println!("file: {}", file.to_string_lossy());
    config
        .fs()
        .file_read_to_string(file)?
        .lines()
        .enumerate()
        .map(|(n, line)| {
            Line::builder()
                .file(file.to_path_buf())
                .num(n)
                .value(line.to_owned())
                .build()
        })
        .filter_map(|line| line.into_marker().ok())
        .filter(|marker| !matches!(marker, Marker::Unmarked))
        .for_each(|marker| found_markers.add_marker(marker));

    Ok(())
}