@startuml "blip class diagram"

left to right direction

component clap {
    interface Parser
}

component fasteval {
    enum Instruction
}

component mp3lame-encoder {
    enum Quality
    enum Bitrate
}

component hound {
    enum SampleFormat
}

component cli {
    struct Cli {
        mode: Mode
    }
    enum Mode {
        Play(PlayOpts)
        Export(ExportOpts)
        Help(HelpOpts)
    }
    Cli --> Mode
    struct PlayOpts {
        input: Input
        instrument: Instruction [-i, --instrument]
        length: Instruction [-l, --length]
        variables: HashMap<char, f64> [-v, --variable]
        macros: HashMap<char, String> [-m, --macro]
        slopes: HashMap<String, (char, Instruction)> [-s, --slope]
    }
    Mode --> PlayOpts
    enum Input {
        File(File)
        Stdin(Stdin) [default]
        String(String) [-c]
    }
    PlayOpts --> Input
    struct ExportOpts {
        playopts: PlayOpts
        format: Format
        output: Output [-c]
    }
    Mode --> ExportOpts
    enum Format {
        Mp3 {bitrate: Bitrate, quality: Quality}
        Wav {bps: u16, sample_format: SampleFormat}
        Flac {bps: usize}
        Raw(RawFormat)
    }
    enum RawFormat {
        ALaw
        F32Be
        F32Le
        F64Be
        F64Le
        MuLaw
        S8
        S16Be
        S16Le
        S24Be
        S24Le
        S32Be
        S32Le
        U8
        U16Be
        U16Le
        U24Be
        U24Le
        U32Be
        U32Le
    }
    Format --> RawFormat: "feature = "raw""
    ExportOpts --> Format
    enum Output {
        File(File)
        Stdout(Stdout) [default]
    }
    ExportOpts --> Output
    PlayOpts <-- ExportOpts
    enum HelpOpts {
        Syntax
        Examples
        Example(u8)
        Format
    }
    Mode --> HelpOpts
}

component flacenc-rs {

}

component raw_audio {

}

cli ..|> Parser: derive
PlayOpts --> Instruction
Format --> Bitrate: "feature = "mp3""
Format --> Quality: "feature = "mp3""
Format --> SampleFormat: "feature = "wav""
Format ..> "flacenc-rs": "feature = "flac""
Format ..> raw_audio: "feature = "raw""

@enduml