import a.fs
import a.math
import a.ggez
import a.ggez.audio


ggez.init()

amp = 2 ** 14

# a440_data = audio.SoundData.from_samples(
#     range(44100 * 2)
#         .map(def(t) = int(math.sin((t / 44100) * 440 * math.tau) * amp))
#         .list()
# )
a440_data = audio.SoundData.sine(nsamples = 44100 * 10, amp = 2 ** 12)

# sample_path = fs.join(fs.dirname(__file), 'resources', 'sine.wav')
# sample_bytes = fs.read(sample_path, encoding=nil)
# a440_data = audio.SoundData.from_bytes(sample_bytes)

sound_sources = []
for i in range(-10, 26) {
    source = audio.Source.from_data(a440_data)
    source.set_pitch(2 ** (i / 12))
    source.set_repeat(true)
    sound_sources.push(source)
}

letters = 'ZXCVBNMASDFGHJKLQWERTYUIOP'
map = [:]
for [i, c] in letters.chars().enumerate() {
    map[c] = i
}
for i in range(1, 10) {
    n = map.len()
    map['Key%s' % [i]] = n
}
map['Key0'] = map.len()

ggez.run(
    draw = def {
    },
    key_down = def(key, repeat) {
        if !repeat {
            if map.has_key(key) {
                index = map[key]
                sound_sources[index].play()
            } else {
                print('key = %r' % [key])
            }
        }
    },
    key_up = def(key) {
        if map.has_key(key) {
            index = map[key]
            sound_sources[index].pause()
        } else {
            print('key = %r' % [key])
        }
    },
)