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// Copyright 2020 Contributors to the Parsec project.
// SPDX-License-Identifier: Apache-2.0

//! Subcommand implementations. Interacts with parsec-client-rust.

mod create_ecc_key;
mod create_rsa_key;
mod decrypt;
mod delete_client;
mod delete_key;
mod export_public_key;
mod generate_random;
mod list_authenticators;
mod list_clients;
mod list_keys;
mod list_opcodes;
mod list_providers;
mod ping;
mod sign;

use crate::error::Result;
use crate::subcommands::{
    create_ecc_key::CreateEccKey, create_rsa_key::CreateRsaKey, decrypt::Decrypt,
    delete_client::DeleteClient, delete_key::DeleteKey, export_public_key::ExportPublicKey,
    generate_random::GenerateRandom, list_authenticators::ListAuthenticators,
    list_clients::ListClients, list_keys::ListKeys, list_opcodes::ListOpcodes,
    list_providers::ListProviders, ping::Ping, sign::Sign,
};
use parsec_client::BasicClient;
use structopt::StructOpt;

/// Command-line interface to Parsec operations.
#[derive(Debug, StructOpt)]
pub enum Subcommand {
    /// Ping the Parsec service and prints the wire protocol version.
    Ping(Ping),

    /// List the available providers supported by the Parsec service.
    ListProviders(ListProviders),

    /// List the available authenticators supported by the Parsec service.
    ListAuthenticators(ListAuthenticators),

    /// List the supported opcodes for a given provider.
    ListOpcodes(ListOpcodes),

    /// List all keys belonging to the application.
    ListKeys(ListKeys),

    /// Generate a sequence of random bytes.
    GenerateRandom(GenerateRandom),

    /// Export the public part of the key pair in PEM format
    ExportPublicKey(ExportPublicKey),

    /// Create a RSA key pair (2048 bits). Used by default for asymmetric encryption with RSA PKCS#1 v1.5.
    CreateRsaKey(CreateRsaKey),

    /// Create a ECC key pair (curve secp256r1). Used by default for asymmetric signing with ECDSA (SHA-256).
    CreateEccKey(CreateEccKey),

    /// Decrypt data using the algorithm of the key
    Decrypt(Decrypt),

    /// Sign data using the algorithm of the key (base64 signature)
    Sign(Sign),

    /// Delete a key.
    DeleteKey(DeleteKey),

    /// Lists all clients currently having data in the service (admin operation).
    ListClients(ListClients),

    /// Delete all data a client has in the service (admin operation).
    DeleteClient(DeleteClient),
}

impl Subcommand {
    /// Runs the subcommand.
    pub fn run(&self, client: BasicClient) -> Result<()> {
        match &self {
            Subcommand::Ping(cmd) => cmd.run(client),
            Subcommand::ListProviders(cmd) => cmd.run(client),
            Subcommand::ListAuthenticators(cmd) => cmd.run(client),
            Subcommand::ListKeys(cmd) => cmd.run(client),
            Subcommand::ListClients(cmd) => cmd.run(client),
            Subcommand::DeleteClient(cmd) => cmd.run(client),
            Subcommand::ListOpcodes(cmd) => cmd.run(client),
            Subcommand::GenerateRandom(cmd) => cmd.run(client),
            Subcommand::ExportPublicKey(cmd) => cmd.run(client),
            Subcommand::CreateRsaKey(cmd) => cmd.run(client),
            Subcommand::CreateEccKey(cmd) => cmd.run(client),
            Subcommand::Sign(cmd) => cmd.run(client),
            Subcommand::Decrypt(cmd) => cmd.run(client),
            Subcommand::DeleteKey(cmd) => cmd.run(client),
        }
    }
}