extern crate ansi_term;
extern crate pathdiff;
extern crate pulldown_cmark;
extern crate regex;
#[macro_use]
extern crate serde_derive;
#[macro_use]
extern crate structopt;
extern crate toml;

mod logger;
mod options;
mod error;
mod config_toml;
mod config;
mod template;
mod renderer;
mod builder;
mod new_page;
mod file_writer;

use std::collections::HashMap;
use std::error::Error;
use std::path::PathBuf;

use structopt::StructOpt;

use logger::{LogLevel, Logger};
use options::{Opt, Subcommands};
use config_toml::{GlobalConfigToml, NavbarConfig, NavbarItem, WebsiteConfig};

fn main() {
    let opt = Opt::from_args();

    let log_level = (3 - opt.quiet as i8 + opt.verbose as i8).max(0).min(5);
    let logger = Logger::new(LogLevel::from(log_level as u8));

    match opt.cmd {
        Subcommands::Build(ops) => match builder::build(&logger, &ops) {
            Ok(_) => logger.log(LogLevel::DETAILER, "Building finished successfully."),
            Err(err) => {
                logger.log(err.severity(), err.description());
                logger.log(LogLevel::SEVERE, "Aborting building due to error.");
            }
        },
        Subcommands::New(ops) => match new_page::generate_new_page(ops, &logger) {
            Ok(_) => logger.log(
                LogLevel::DETAILER,
                "Generating the new page finished successfully.",
            ),
            Err(err) => {
                logger.log(err.severity(), err.description());
                logger.log(LogLevel::SEVERE, "Aborting building due to error.");
            }
        },
        Subcommands::Initialize(ops) => {
            logger.log(LogLevel::DETAIL, "Generating config.toml");

            let mut navbar = None;
            if !ops.no_default_navbar {
                let mut hashmap = HashMap::new();
                hashmap.insert(
                    "test".to_owned(),
                    NavbarItem {
                        title: "Home".to_owned(),
                        link: "/home.html".to_owned(),
                        image_url: Some("/img/image.png".to_owned()),
                    },
                );
                hashmap.insert(
                    "other".to_owned(),
                    NavbarItem {
                        title: "Other".to_owned(),
                        link: "/other.html".to_owned(),
                        image_url: None,
                    },
                );
                navbar = Some(NavbarConfig {
                    items: vec!["test".to_owned(), "other".to_owned()],
                    item_map: hashmap,
                })
            }
            let config = GlobalConfigToml {
                website: WebsiteConfig {
                    website_name: ops.name,
                    built_pages: Vec::new(),
                    use_default_css: true,
                    javascript: Vec::new(),
                    css: Vec::new(),
                    favicon: ops.favicon,
                    before_navbar_url: None,
                    before_content_url: None,
                    after_content_url: None,
                    twitter_author: ops.twitter_author,
                    google_robots: None,
                    google_site_verification: None,
                },
                navbar: navbar,
            };

            match toml::ser::to_string(&config) {
                Ok(text) => {
                    match file_writer::write_file(PathBuf::from("config.toml"), text, ops.overwrite)
                    {
                        Ok(_) => logger.log(LogLevel::INFO, "config.toml successfully generated"),
                        Err(err) => logger.log(
                            LogLevel::SEVERE,
                            format!(
                                "Failed to write config.toml: {}",
                                err.description().to_owned()
                            ),
                        ),
                    }
                }
                Err(err) => logger.log(
                    LogLevel::SEVERE,
                    format!(
                        "Failed to serialize config.toml: {}",
                        err.description().to_owned()
                    ),
                ),
            }
        }
    }
}