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extern crate finder;
extern crate log;
// extern crate freetype;
extern crate pretty_env_logger;
extern crate regex;

pub mod font;
pub mod types;
mod utils;

use finder::{Finder, IntoIter};
use font::Font;
// use freetype::{error::Error, Face, Library};
use types::FontEntry;

pub struct Fonts {
  // lib: Library,
  finder: IntoIter,
}

impl Fonts {
  pub fn new(dirs: &Vec<String>) -> Self {
    pretty_env_logger::init();

    Fonts {
      finder: Finder::new(&dirs.join(":"))
        .filter(&utils::filter_files)
        .into_iter(),
    }
  }

  pub fn to_json(self) -> String {
    let mut json = "{".to_owned();
    for font in self {
      let string = font.to_json();
      json.push_str(&string[1..string.len() - 1]);
      json.push_str(",");
    }

    json = json[0..json.len() - 1].to_string();
    json.push_str("}");
    json
  }
}

impl Iterator for Fonts {
  type Item = Font;

  fn next(&mut self) -> Option<Font> {
    match self.finder.next() {
      None => return None,
      Some(file) => {
        let font_path = String::from(file.path().to_str().unwrap());
        let mut entry = Font {
          path: "".to_owned(),
          entries: vec![],
        };

        // match self.lib.new_face(&font_path, 0) {
        //   Err(err) => {
        //     warn!("Cannot open font {}, ERROR: {}", &font_path, err);
        //   }
        //   Ok(font) => {
        //     let font_index = font.num_faces();

        //     debug!("Read font '{}'", &font_path);

        //     if utils::is_correct_font(&font) {
        //       if font_index == 1 {
        //         let mut values: Vec<FontEntry> = Vec::new();
        //         values.push(make_fonts(&font));

        //         entry.path = font_path;
        //         entry.entries = values;
        //       } else if font_index > 1 {
        //         let mut values: Vec<FontEntry> = Vec::new();

        //         for index in 1..font_index {
        //           values.push(make_fonts(
        //             &self.lib.new_face(&font_path, isize::from(index)).unwrap(),
        //           ));
        //         }

        //         entry.path = font_path;
        //         entry.entries = values;
        //       }
        //     }
        //   }
        // };

        let mut values: Vec<FontEntry> = Vec::new();
        values.push(FontEntry {
          postscript: String::from("postscript"),
          family: String::from("family_name"),
          id: String::from("font_id"),
          style: String::from("regular"),
          weight: 400,
          stretch: 5,
          italic: false,
        });

        entry.path = font_path;
        entry.entries = values;

        Some(entry)
      }
    }
  }
}

// fn make_fonts(face: &Face) -> FontEntry {
//   let mut is_italic = false;
//   let flags = face.style_flags().bits();

//   if flags == 1 || flags == 3 {
//     is_italic = true;
//   }

//   FontEntry {
//     postscript: String::from(
//       face
//         .postscript_name()
//         .expect("BUG: Cannot get postscript_name"),
//     ),
//     family: String::from(face.family_name().expect("BUG: Cannot get family_name")),
//     id: String::from(face.family_name().expect("BUG: Cannot get family_name")),
//     style: String::from(face.style_name().expect("BUG: Cannot get style_name")),
//     weight: 400,
//     stretch: 5,
//     italic: is_italic,
//   }
// }

// #[cfg(test)]
// mod tests {
//     use super::*;

//     #[test]
//     fn test_get_fonts() {
//         assert_eq!(fonthelper::get_fonts(), "Hello cargo!");
//     }
// }