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// Copyright (c) The nextest Contributors
// SPDX-License-Identifier: MIT OR Apache-2.0

// clippy complains about the Arbitrary impl for OutputFormat
#![allow(clippy::unit_arg)]

use serde::Serialize;
use std::io;

/// Output formats for nextest.
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
#[cfg_attr(test, derive(proptest_derive::Arbitrary))]
#[non_exhaustive]
pub enum OutputFormat {
    /// A human-readable output format.
    Human {
        /// Whether to produce verbose output.
        verbose: bool,
    },

    /// Machine-readable output format.
    Serializable(SerializableFormat),
}

/// A serialized, machine-readable output format.
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
#[cfg_attr(test, derive(proptest_derive::Arbitrary))]
#[non_exhaustive]
pub enum SerializableFormat {
    /// JSON with no whitespace.
    Json,
    /// JSON, prettified.
    JsonPretty,
}

impl SerializableFormat {
    /// Write this data in the given format to the writer.
    pub fn to_writer(
        self,
        value: &impl Serialize,
        writer: impl io::Write,
    ) -> serde_json::Result<()> {
        match self {
            SerializableFormat::Json => serde_json::to_writer(writer, value),
            SerializableFormat::JsonPretty => serde_json::to_writer_pretty(writer, value),
        }
    }
}