// SPDX-FileCopyrightText: Copyright (C) 2024 Roland Csaszar
// SPDX-License-Identifier: EUPL-1.2
//
// Project:  token-string
// File:     main.rs
// Date:     16.Nov.2024
// =============================================================================
//! This is just an example on how to use [`token_string`].

#![expect(
	clippy::print_stdout,
	reason = "We are in a CLI program, we need to print something"
)]
#![expect(clippy::use_debug, reason = "We are trying to show debug printing")]

use token_string::{Builder, Collect as _, Concat as _, TokenString};

/// Main entry point of the program.
fn main() {
	let str = "HUGO HUGO HUGO HUGO".to_owned();
	let s1 = TokenString::try_from(str).unwrap();
	println!("S1: {s1}");
	println!("S1 debug: {s1:?}");

	let s1_str: &str = s1.as_str();
	let s1_bytes: &[u8] = s1.as_bytes();
	let s1_string = s1.as_string();
	let s1_chars: Vec<char> = s1.as_chars();

	assert!(&s1 == s1_str, "Should be the same!");
	assert!(&s1 == s1_bytes, "Should be the same!");
	assert!(s1 == s1_string, "Should be the same!");
	assert!(s1.as_chars() == s1_chars, "Should be the same!");

	println!("========================================");

	let s2 = TokenString::try_from("HUGO06").unwrap();
	for i in &s2 {
		println!("S2 iterator: {i}");
	}

	println!("========================================");

	let s3: TokenString = "HUGO HUGO HUGO".try_into().unwrap();
	let s4 = TokenString::default();
	println!("S3 debug: {s3:?}\nS4 debug: {s4:?}");
	println!("S3: '{s3}'\nS4: '{s4}'");
	println!("S2[2..=43]: {}", &s2[2 ..= 3]);

	println!("========================================");

	let s21 = TokenString::try_from("Hello, ").unwrap();
	let s22 = TokenString::try_from("world!").unwrap();

	let mut builder = Builder::<'_, 2>::new(&s21);

	// Create the new `TokenString`. An error may be returned.
	let s21_s22 = builder.concat(&s22).collect().unwrap();

	// Check, if the result is actually "Hello, world!".
	println!("S11 + S22:\n'{s21_s22}'\nshould be:\n'Hello, world!'");

	println!("========================================");
	let mut b = Builder::<'_, 64>::new(&s3);
	println!("Only S3: {b}");
	let c = b.concat(&s3).concat(&s3).unwrap();
	println!("3x S3: {c}");
	let s5 = c.collect_checked().unwrap();
	println!("S5: {s5:?}");

	println!("========================================");
	let s6 = TokenString::try_from("1").unwrap();
	let s7: TokenString = "2".try_into().unwrap();
	let mut d = Builder::<'_, 64>::new(&s2);
	println!("Only S2: {d}");
	let e = d.concat(&s6).concat(&s7).unwrap();
	println!("S2 + S6 + S7: {e}");
	let s8 = e.collect_checked().unwrap();
	println!("S8: {s8:?}");

	println!("========================================");
	let s9 = TokenString::try_from("3").unwrap();
	let s10: TokenString = "4".try_into().unwrap();
	let s11 = Builder::<'_, 64>::new(&s6)
		.concat(&s7)
		.concat(&s9)
		.concat(&s10)
		.collect()
		.unwrap();
	println!("S11: {s11:?}");

	println!("========================================");
	let s12 = token_string::concat!(
		&s6,
		&s7,
		&s9,
		&s10,
		&TokenString::try_from("asd").unwrap()
	)
	.unwrap();
	println!("S12: {s12:?}");
}