module main

import os
import io
import metadata

fn id3(){
	// mut audio := os.open("./data/АЛИСА 11000.mp3") or { panic(err) }
	// mut audio := os.open("./data/Глава 2. 16 и 17 июля.mp3") or { panic(err) }
	mut audio := os.open("./out.mp3") or { panic(err) }
	// mut audio := os.open("./data/01_01.mp3") or { panic(err) }
	// mut audio := os.open("./test.mp3") or { panic(err) }

	defer {
		audio.close()
	}

	mut wav := metadata.Audio{}
	wav.detect_tags(mut audio)

	println(wav.id3v1.embedded)
	println(wav.id3v23.embedded)
	println(wav.id3v24.embedded)

	if wav.id3v1.embedded {
		last_bytes := metadata.get_bytes(mut audio, -128, 128)
		wav.id3v1.get_metadata(last_bytes)

		println(wav.id3v1)
	}

	if wav.id3v23.embedded {
		wav.id3v23.get_full_size(mut audio)
		wav.id3v23.fill_tags(mut audio)
		println(wav.id3v23.to_v1())
		wav.id3v23.tit2.encode_size(3)
		tit2 := wav.id3v23.tit2.get_encoded_frame_tag(3)
		println(tit2)
		// println(wav.id3v23.tit2)
	}

	if wav.id3v24.embedded {
		wav.id3v24.get_full_size(mut audio)
		wav.id3v24.fill_tags(mut audio)
		println(wav.id3v24.to_v1())
		// wav.id3v24.tit2.encode_size(4)

		// flex := wav.id3v24.talb.get_encoded_frame_tag(4)

		// println(flex)

		// println(wav.id3v24.tdrc.data)
		// wav.id3v24.tdrc.set_data("2017")

		// enc_size := metadata.encode_header_size(wav.id3v24.size, wav.id3v24.version)
		// println(enc_size)
		wav.id3v24.tit2.set_data("2017")
		wav.id3v24.tpe1.init("tpe1")
		wav.id3v24.tpe1.set_data("Hello")
		wav.id3v24.tpe2.init("tpe2")
		wav.id3v24.tpe2.set_data("Hello2")
		// metadata.encode_header(mut wav.id3v24)
		// println(wav.id3v24.encoded_header)
		// println(wav.id3v24.tpe1.name)

		wav.id3v24.encode_embed_tags()
		println(wav.id3v24.encoded_header.len)

		wav.id3v24.insert_tags_into_audio(mut audio)

		// println(wav.id3v24)

		mut f := os.create("./temp.mp3") or { panic(err) }

		f.write(wav.id3v24.encoded_header) or { panic(err) }
		f.close()

		// println(wav.id3v24)
		// mut audio_2 := os.open("./out.mp3") or { panic(err) }

		// data := io.read_all(reader: audio_2) or { [u8(0), u8(0), u8(0), u8(0)] }
		// println(data)
		println(wav.id3v24.size)
		println(wav.id3v24.encoded_header)
	}

	

	// println(wav.id3v23)
	// println(wav.id3v23.tit2)


	// converted_idv31 := wav.id3v1.to_v23()
	// println(converted_idv31)
	// println(last_bytes)

	// flex := wav.id3v1.to_bytes()

	// audio.seek(-1, os.SeekMode.end) or { panic(err) }

	// flex1 := audio.tell() or { panic(err) }

	// mut all_bytes := audio.read_bytes(int(flex1))#[..-128]

	// all_bytes << flex

	// println(all_bytes.len)
	// println(int(flex1))

	// all_bytes := wav.id3v1.insert(mut audio, -128)

	// os.write_bytes("./test.mp3", all_bytes) or { panic(err) }

}

fn main(){
	id3()
}