use crate::{FORBIDDEN_WORDS, stats::Stats};

#[allow(dead_code)]
/// probably buggy. for example, are new lines sentences? what if the text has no last period?
pub fn parse(stats: &mut Stats, text: &str) {
	let mut capitalized = true;
	let mut whitespaced = false;
	let mut dotted = false;
	let mut word = String::new();
	for char in text.chars() {
		if whitespaced {
			if !char.is_whitespace() {
				whitespaced = false; //end whiteness
			}
			continue;
		} else if char.is_whitespace() {
			whitespaced = true;
			stats.word_count += 1; //end of word
			if capitalized {
				stats.capitalized_count += 1;
			} else {
				//reset capitalized word
				capitalized = true;
			}
			let lowercase_word = word.to_lowercase();
			if FORBIDDEN_WORDS.contains(&lowercase_word) {
				stats.forbidden_count += 1;
			}
			word = String::new();
			continue;
		}
		if dotted {
			if char != '.' {
				dotted = false; //end sentencing
			}
			continue;
		} else if char == '.' {
			dotted = true;
			stats.sentence_count += 1;
			stats.word_count += 1; //end of word
			if capitalized {
				stats.capitalized_count += 1;
			} else {
				//reset capitalized word
				capitalized = true;
			}
			let lowercase_word = word.to_lowercase();
			if FORBIDDEN_WORDS.contains(&lowercase_word) {
				stats.forbidden_count += 1;
			}
			word = String::new();
			continue;
		}
		word += &char.to_string();
		if char.is_numeric() {
			stats.numeric_count += 1;
			capitalized = false;
		}
		if !char.is_ascii_uppercase() {
			capitalized = false;
		}
	}
}