// Copyright 2020, The Tari Project
//
// Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
// following conditions are met:
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// 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following
// disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
// following disclaimer in the documentation and/or other materials provided with the distribution.
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use std::fmt;

use crate::schema::dht_metadata;

/// Supported metadata keys for the DHT database
#[derive(Debug, Clone, Copy)]
pub enum DhtMetadataKey {
    /// Timestamp each time the DHT is shut down
    OfflineTimestamp,
}

impl fmt::Display for DhtMetadataKey {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "{self:?}")
    }
}

/// Struct used to create a new metadata entry
#[derive(Clone, Debug, Insertable)]
#[diesel(table_name = dht_metadata)]
pub struct NewDhtMetadataEntry {
    pub key: String,
    pub value: Vec<u8>,
}

/// Struct used that contains a metadata entry
#[derive(Clone, Debug, Queryable, Identifiable)]
#[diesel(table_name = dht_metadata)]
pub struct DhtMetadataEntry {
    pub id: i32,
    pub key: String,
    pub value: Vec<u8>,
}
