use crate::md::structs::{MessDetectorChar, MessDetectorCharFlags};
use crate::md::*;
use crate::utils::{decode, get_large_test_datasets};
use encoding::DecoderTrap;
use ordered_float::OrderedFloat;
use std::fs::File;
use std::io::Read;

#[test]
fn test_mess_ratio() {
    let tests =     [
        // content, min_expected_ratio, max_expected_ratio
        ("典肇乎庚辰年十二月廿一，及己丑年二月十九，收各方語言二百五十，合逾七百萬目；二十大卷佔八成，單英文卷亦過二百萬。悉文乃天下有志共筆而成；有意助之，幾網路、隨纂作，大典茁焉。", 0.0, 0.0),
        ("العقلية , التنويم المغناطيسي و / أو الاقتراح", 0.0, 0.0),
        ("RadoZ تـــعــــديــل الـــتــــوقــيــــت مـــن قــبــل", 0.0, 0.0),
        ("Cehennemin Sava■þ²s²'da kim?", 0.1, 0.5),
        ("´Á¥½³ø§i --  ±i®Ìºû, ³¯·Ø©v", 0.5, 1.0),
        ("ïstanbul, T■rkiye'nin en kalabal»k, iktisadi ve k■lt■rel aÓ»dan en —nemli", 0.1, 0.501),
        ("<i>Parce que Óa, c'est la vÕritable histoire de la rencontre avec votre Tante Robin.</i>", 0.01, 0.5),
        ("ØĢØŠØģاØĶŲ„ Ų„Ųˆ ØĢŲ† اŲ„Ų†Ø§Øģ ŲŠŲˆŲ… Ų…ا ØģŲˆŲŲŠØŠØģاØĶŲ„ŲˆŲ†ØŒ ØŊØđŲ†Ø§ Ų†ØģŲ…Øđ ØđŲ† (ŲØąŲˆØŊŲˆ) ŲˆØ§Ų„ØŪا؊Ų…", 0.8, 2.0),
        ("ÇáÚŞáíÉ , ÇáÊäæíã ÇáãÛäÇØíÓí æ / Ãæ ÇáÇŞÊÑÇÍ", 0.8, 2.5),
        ("hishamkoc@yahoo.com ุชุฑุฌู…ู€ู€ุฉ ู‡ู€ุดู€ู€ู€ุงู… ุงู„ู€ู‚ู€ู€ู€ู€ู„ุงูRadoZ ุชู€ู€ู€ุนู€ู€ู€ู€ุฏูŠู€ู€ู„ ุงู„ู€ู€ู€ุชู€ู€ู€ู€ูˆู‚ู€ู€ูŠู€ู€ู€ู€ุช ู…ู€ู€ู€ู† ู‚ู€ู€ุจู€ู€ู„", 0.5, 2.0),
    ];
    for test in &tests {
        let mr = mess_ratio(test.0.to_string(), Some(OrderedFloat(1.0)));
        assert!(
            mr >= test.1 && mr <= test.2,
            "The mess detection ratio {} calculated for given content is not well adjusted: {}",
            mr,
            test.0
        );
    }
}

#[test]
fn test_datasets_mess_ratio() {
    for (path, encoding) in &get_large_test_datasets().unwrap() {
        let file = File::open(path);
        if file.is_err() {
            return;
        }
        let mut buffer = Vec::new();
        if file.unwrap().read_to_end(&mut buffer).is_err() {
            return;
        }
        if let Ok(decoded_sequence) = decode(
            &buffer,
            encoding.first().unwrap(),
            DecoderTrap::Ignore,
            false,
            false,
        ) {
            let mr = mess_ratio(decoded_sequence, Some(OrderedFloat(1.0)));
            assert!(mr < 0.2, "Mess ratio is very high = {} for {}", mr, path);
        }
    }
}

#[test]
fn test_is_accentuated() {
    let tests = [
        ('é', true),
        ('è', true),
        ('à', true),
        ('À', true),
        ('Ù', true),
        ('ç', true),
        ('a', false),
        ('€', false),
        ('&', false),
        ('Ö', true),
        ('ü', true),
        ('ê', true),
        ('Ñ', true),
        ('Ý', true),
        ('Ω', false),
        ('ø', false),
        ('Ё', false),
    ];
    for test in &tests {
        assert_eq!(
            MessDetectorChar::new(test.0).is(MessDetectorCharFlags::ACCENTUATED),
            test.1,
        );
    }
}

#[test]
fn test_is_latin() {
    let tests = [('я', false), ('a', true)];
    for test in &tests {
        assert_eq!(
            MessDetectorChar::new(test.0).is(MessDetectorCharFlags::LATIN),
            test.1,
        );
    }
}

#[test]
fn test_is_cjk() {
    let tests = [('я', false), ('是', true)];
    for test in &tests {
        assert_eq!(
            MessDetectorChar::new(test.0).is(MessDetectorCharFlags::CJK),
            test.1,
        );
    }
}

#[test]
fn test_is_hiragana() {
    let tests = [('是', false), ('お', true)];
    for test in &tests {
        assert_eq!(
            MessDetectorChar::new(test.0).is(MessDetectorCharFlags::HIRAGANA),
            test.1,
        );
    }
}

#[test]
fn test_is_katakana() {
    let tests = [('お', false), ('キ', true)];
    for test in &tests {
        assert_eq!(
            MessDetectorChar::new(test.0).is(MessDetectorCharFlags::KATAKANA),
            test.1,
        );
    }
}

#[test]
fn test_is_hangul() {
    let tests = [('キ', false), ('ㅂ', true)];
    for test in &tests {
        assert_eq!(
            MessDetectorChar::new(test.0).is(MessDetectorCharFlags::HANGUL),
            test.1,
        );
    }
}

#[test]
fn test_is_thai() {
    let tests = [('キ', false), ('ย', true)];
    for test in &tests {
        assert_eq!(
            MessDetectorChar::new(test.0).is(MessDetectorCharFlags::THAI),
            test.1,
        );
    }
}

#[test]
fn test_is_case_variable() {
    let tests = [('#', false), ('я', true)];
    for test in &tests {
        assert_eq!(
            MessDetectorChar::new(test.0).is(MessDetectorCharFlags::CASE_VARIABLE),
            test.1,
        );
    }
}

#[test]
fn test_is_punctuation() {
    let tests = [('!', true), ('?', true), ('a', false), (':', true)];
    for test in &tests {
        assert_eq!(
            MessDetectorChar::new(test.0).is(MessDetectorCharFlags::PUNCTUATION),
            test.1,
        );
    }
}

#[test]
fn test_is_symbol() {
    let tests = [('+', true), ('∑', true), ('a', false), ('я', false)];
    for test in &tests {
        assert_eq!(
            MessDetectorChar::new(test.0).is(MessDetectorCharFlags::SYMBOL),
            test.1,
        );
    }
}

#[test]
fn test_is_emoticon() {
    let tests = [('🙂', true), ('∑', false), ('😂', true), ('я', false)];
    for test in &tests {
        assert_eq!(
            MessDetectorChar::new(test.0).is(MessDetectorCharFlags::EMOTICON),
            test.1,
        );
    }
}

#[test]
fn test_is_separator() {
    let tests = [(' ', true), ('a', false), ('!', true), ('я', false)];
    for test in &tests {
        assert_eq!(
            MessDetectorChar::new(test.0).is(MessDetectorCharFlags::SEPARATOR),
            test.1,
        );
    }
}

#[test]
fn test_is_unprintable() {
    let tests = [(' ', false), ('a', false), ('!', false), ('\u{0000}', true)];
    for test in &tests {
        assert_eq!(
            MessDetectorChar::new(test.0).is(MessDetectorCharFlags::UNPRINTABLE),
            test.1,
        );
    }
}