extern crate clap;
extern crate glob;
#[macro_use] extern crate log;
extern crate semver;
extern crate toml;
#[macro_use] extern crate version;

extern crate libimagrt;
extern crate libimagstore;
extern crate libimagutil;

use std::process::exit;

use clap::ArgMatches;

use libimagrt::runtime::Runtime;
use libimagstore::store::Entry;
use libimagstore::store::Result as StoreResult;
use libimagutil::trace::trace_error;

mod ui;
mod viewer;

use ui::build_ui;
use viewer::Viewer;
use viewer::ViewInformation;

fn main() {
    let name = "imag-view";
    let version = &version!()[..];
    let about = "View entries (readonly)";
    let ui = build_ui(Runtime::get_default_cli_builder(name, version, about));
    let rt = {
        let rt = Runtime::new(ui);
        if rt.is_ok() {
            rt.unwrap()
        } else {
            println!("Could not set up Runtime");
            println!("{:?}", rt.err().unwrap());
            exit(1);
        }
    };

    rt.init_logger();

    debug!("Hello. Logging was just enabled");
    debug!("I already set up the Runtime object and build the commandline interface parser.");
    debug!("Lets get rollin' ...");

    info!("No implementation yet");

    let entry_id = rt.cli().value_of("id").unwrap(); // enforced by clap

    if rt.cli().is_present("versions") {
        view_versions_of(entry_id, &rt);
    } else {
        let entry_version   = rt.cli().value_of("version");
        let view_header     = rt.cli().is_present("view-header");
        let view_content    = rt.cli().is_present("view-content");
        let view_copy       = rt.cli().is_present("view-copy");
        let keep_copy       = rt.cli().is_present("keep-copy");

        let scmd = rt.cli().subcommand_matches("view-in");
        if scmd.is_none() {
            debug!("No commandline call");
            exit(1);
        }
        let scmd = scmd.unwrap();

        let viewer = build_viewer(scmd);
        let entry = load_entry(entry_id, entry_version);
        if entry.is_err() {
            trace_error(&entry.err().unwrap());
            exit(1);
        }
        let entry = entry.unwrap();

        let view_info = ViewInformation {
            entry:          entry,
            view_header:    view_header,
            view_content:   view_content,
            view_copy:      view_copy,
            keep_copy:      keep_copy,
        };

        view_info.view(view_info);
    }
}

fn load_entry(id: &str, version: Option<&str>) -> StoreResult<Entry> {
    unimplemented!()
}

fn view_versions_of(id: &str, rt: &Runtime) {
    unimplemented!()
}