use std::env;
use std::error::Error;
use std::fs::{File, create_dir_all};
use std::io::Write;
use std::path::PathBuf;
use std::process::exit;
use tetanus::funcs::get_user_input;

pub fn install() -> Result<(), Box<dyn Error>> {
    if let Some(homedir) = env::home_dir() {
        let mut config_path = homedir.clone();
        config_path.push(".config/tetanus");
        let mut projects_path = config_path.clone();
        projects_path.push("projects");
        let mut module_path = config_path.clone();
        module_path.push("modules/default");
        create_dir_all(&module_path)?;
        module_path.pop();
        module_path.push("custom");
        create_dir_all(&module_path)?;
        module_path.pop();
        let current_files_path = PathBuf::from(get_user_input(
            "enter the path to store currently in progress project files (not notes), or none if you want to be propted everytime",
        )?);
        let current_notes_path = PathBuf::from(get_user_input(
            "enter the path to store currently in progress project notes, or none if you want to be prompted everytime",
        )?);
        let upcoming_files_path = PathBuf::from(get_user_input(
            "enter the path to store upcoming project files (not notes) or none if you want to be prompted everytime",
        )?);
        let upcoming_notes_path = PathBuf::from(get_user_input(
            "enter the path to store upcoming project notes, or none if you want to be prompted everytime",
        )?);
        config_path.push("client.conf");
        projects_path.push("default");
        create_dir_all(&projects_path)?;
        projects_path.push("project.conf");
        let mut client_config_file = File::create(&config_path)?;
        client_config_file.write(format!("projects: {}\n", projects_path.display()).as_bytes())?;
        client_config_file.write("servers: 127.0.0.1:31337\n".as_bytes())?;
        let mut default_project_file = File::create(projects_path)?;
        config_path.pop();
        config_path.push("server.conf");
        let mut server_config_file = File::create(config_path)?;
        server_config_file.write("address: 127.0.0.1:31337\n".as_bytes())?;
        server_config_file.write("running: false\n".as_bytes())?;
        default_project_file.write("org_name: default\n".as_bytes())?;
        default_project_file.write("name: default\n".as_bytes())?;
        default_project_file
            .write(format!("notes: {}\n", current_files_path.display()).as_bytes())?;
        default_project_file
            .write(format!("files: {}\n", current_notes_path.display()).as_bytes())?;
        default_project_file.write("stage: current".as_bytes())?;
        client_config_file
            .write(format!("current_files: {}\n", current_files_path.display()).as_bytes())?;
        client_config_file
            .write(format!("current_notes: {}\n", current_notes_path.display()).as_bytes())?;
        client_config_file
            .write(format!("upcoming_files: {}\n", upcoming_files_path.display()).as_bytes())?;
        client_config_file
            .write(format!("upcoming_notes: {}\n", upcoming_notes_path.display()).as_bytes())?;
        client_config_file.write(format!("module_path: {}\n", module_path.display()).as_bytes())?;
    } else {
        eprintln!("error finding home directory!");
        exit(1);
    }
    return Ok(());
}