use std::fs::read_to_string;
pub mod config;
pub mod emoji;
pub mod index;
use mlem::*;
use std::env;

fn main() {
    let args: Vec<String> = env::args().collect();

    if args.len() == 1 {
        generate();
    } else if args[1] == "create" {
        create_default_env()
    } else {
        eprintln!("Option not recognized");
        std::process::exit(1);
    }
}

fn generate() {
    let config = config::read_config();
    let raw_files = read_src_files(&config.src_dir);
    let mut post_index: Vec<index::BlogPost> = Vec::new();

    for file in raw_files {
        let mut markdown = read_to_string(file.path).expect("File does not exist");
        markdown = emoji::emoji_pass(&markdown, &config.emoji_config);

        let (html, index_content) = generate_blog_entry(markdown, &config.templates_dir);
        write_to_fs(
            html,
            &config.output_dir,
            &file.file_name.clone().into_string().unwrap(),
        );

        post_index.push(index::BlogPost::new(
            file.title,
            file.date.format("%Y-%m-%d").to_string(),
            file.date.timestamp(),
            index_content,
            format!("{}.html", file.file_name.to_str().unwrap()),
        ));
    }
    let index = index::generate(post_index, &config.templates_dir);

    std::fs::write(format!("{}/index.html", config.output_dir), index)
        .unwrap_or_else(|_| panic!("Error writing index"));
}

fn create_default_env() {
    println!("Writing a default mlem.toml");
    let config = config::Config::default();
    let toml_config = toml::to_string(&config).unwrap();
    std::fs::write("mlem.toml", toml_config).unwrap();
    println!("Creating default directorys");
    std::fs::create_dir(config.output_dir).unwrap();
    std::fs::create_dir(config.src_dir).unwrap();
    std::fs::create_dir(config.templates_dir).unwrap();
}