//! Integration coverage for the shared printable-character HID contract.
//!
//! Scope: verify the shared character-to-HID table from the top-level testing
//! module so both client and server rely on the same canonical assertions.
//! Targets: `common/src/hid.rs`.
//! Why: this mapping is a cross-crate contract and should live in one obvious
//! place instead of being duplicated by package-local test suites.

use lesavka_common::hid::char_to_usage;

#[test]
fn char_to_usage_covers_letters_digits_symbols_and_whitespace() {
    for (offset, ch) in ('a'..='z').enumerate() {
        assert_eq!(char_to_usage(ch), Some((0x04 + offset as u8, 0x00)));
    }

    for (offset, ch) in ('A'..='Z').enumerate() {
        assert_eq!(char_to_usage(ch), Some((0x04 + offset as u8, 0x02)));
    }

    for (offset, ch) in ('1'..='9').enumerate() {
        assert_eq!(char_to_usage(ch), Some((0x1E + offset as u8, 0x00)));
    }
    assert_eq!(char_to_usage('0'), Some((0x27, 0x00)));

    let cases = [
        ('!', (0x1E, 0x02)),
        ('@', (0x1F, 0x02)),
        ('#', (0x20, 0x02)),
        ('$', (0x21, 0x02)),
        ('%', (0x22, 0x02)),
        ('^', (0x23, 0x02)),
        ('&', (0x24, 0x02)),
        ('*', (0x25, 0x02)),
        ('(', (0x26, 0x02)),
        (')', (0x27, 0x02)),
        ('-', (0x2D, 0x00)),
        ('_', (0x2D, 0x02)),
        ('=', (0x2E, 0x00)),
        ('+', (0x2E, 0x02)),
        ('[', (0x2F, 0x00)),
        ('{', (0x2F, 0x02)),
        (']', (0x30, 0x00)),
        ('}', (0x30, 0x02)),
        ('\\', (0x31, 0x00)),
        ('|', (0x31, 0x02)),
        (';', (0x33, 0x00)),
        (':', (0x33, 0x02)),
        ('\'', (0x34, 0x00)),
        ('"', (0x34, 0x02)),
        ('`', (0x35, 0x00)),
        ('~', (0x35, 0x02)),
        (',', (0x36, 0x00)),
        ('<', (0x36, 0x02)),
        ('.', (0x37, 0x00)),
        ('>', (0x37, 0x02)),
        ('/', (0x38, 0x00)),
        ('?', (0x38, 0x02)),
        (' ', (0x2C, 0x00)),
        ('\n', (0x28, 0x00)),
        ('\r', (0x28, 0x00)),
        ('\t', (0x2B, 0x00)),
    ];

    for (ch, expected) in cases {
        assert_eq!(
            char_to_usage(ch),
            Some(expected),
            "unexpected mapping for {ch:?}"
        );
    }
}

#[test]
fn char_to_usage_rejects_characters_outside_the_ascii_contract() {
    for ch in ['é', '🙂', '\u{2603}'] {
        assert_eq!(char_to_usage(ch), None, "unexpected support for {ch:?}");
    }
}