use std::collections::HashMap;
use log::info;
use string_builder::Builder;

use crate::structs::{config::{Field, Config}, data::Data};

fn cutoff(fields: &Vec<Field>, brk: char, strings: &mut HashMap<String, String>) {
  for field in fields {
    if !field.field.eq("xesam:userRating") && !field.field.eq("xesam:autoRating") {
      let a = strings.get(&field.field);
      if a.is_some() && a.unwrap().len() >= field.num_chars as usize {
        let mut b = a.unwrap().clone();
        b.truncate(field.num_chars as usize);
        b.push(brk);
        println!("{}", b);
        strings.insert(field.field.clone(), b);
      }
    }
  }
}

fn build_string(cfg: &Config, data: &mut Data) -> String {
  let mut b = Builder::default();
  
  if cfg.hide_output && data.current_player.is_none() {
    b.append(' ');
  } else {
    cutoff(&cfg.metadata_fields, cfg.break_character, &mut data.display_text);
    b.append(data.display_prefix.clone());
    b.append(' ');
    b.append(format!(" %{{T{}}}", cfg.font_index));
    let mut idx = 0; let len = cfg.metadata_fields.len() as i32;
    for string in &cfg.metadata_fields {
      if let Some(string) = data.display_text.get(&string.field) {
        idx += 1;
        b.append(string.clone());
        if idx < len {b.append(format!(" {} ", cfg.metadata_separator))};
      } else {
        info!("failed to get {} value!", string.field);
      }
    }
    b.append("%{T-}");
  }
  b.string().unwrap_or("Failed to unwrap stringBuilder!".to_owned())
}

pub fn print_text(cfg: &Config, data: &mut Data) {
  println!("{}", build_string(cfg, data));
  
}