136 lines
5.1 KiB
Rust
136 lines
5.1 KiB
Rust
// file: kb_lib/src/db/dtos/pair_candle.rs
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//! Pair-candle DTO.
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/// Application-facing pair-candle DTO.
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#[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
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pub struct KbPairCandleDto {
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/// Optional numeric primary key.
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pub id: std::option::Option<i64>,
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/// Related pair id.
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pub pair_id: i64,
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/// Candle timeframe in seconds.
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pub timeframe_seconds: i64,
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/// Inclusive bucket start in unix seconds.
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pub bucket_start_unix: i64,
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/// Exclusive bucket end in unix seconds.
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pub bucket_end_unix: i64,
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/// Open price in quote-per-base units.
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pub open_price_quote_per_base: f64,
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/// High price in quote-per-base units.
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pub high_price_quote_per_base: f64,
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/// Low price in quote-per-base units.
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pub low_price_quote_per_base: f64,
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/// Close price in quote-per-base units.
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pub close_price_quote_per_base: f64,
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/// Trade count inside the candle.
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pub trade_count: i64,
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/// Buy count inside the candle.
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pub buy_count: i64,
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/// Sell count inside the candle.
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pub sell_count: i64,
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/// Aggregated base volume as decimal text when available.
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pub base_volume_raw: std::option::Option<std::string::String>,
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/// Aggregated quote volume as decimal text when available.
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pub quote_volume_raw: std::option::Option<std::string::String>,
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/// Optional first trade signature inside the candle.
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pub first_trade_signature: std::option::Option<std::string::String>,
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/// Optional last trade signature inside the candle.
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pub last_trade_signature: std::option::Option<std::string::String>,
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/// Creation timestamp.
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pub created_at: chrono::DateTime<chrono::Utc>,
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/// Update timestamp.
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pub updated_at: chrono::DateTime<chrono::Utc>,
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}
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impl KbPairCandleDto {
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/// Creates a new pair-candle DTO.
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#[allow(clippy::too_many_arguments)]
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pub fn new(
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pair_id: i64,
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timeframe_seconds: i64,
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bucket_start_unix: i64,
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bucket_end_unix: i64,
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open_price_quote_per_base: f64,
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high_price_quote_per_base: f64,
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low_price_quote_per_base: f64,
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close_price_quote_per_base: f64,
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trade_count: i64,
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buy_count: i64,
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sell_count: i64,
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base_volume_raw: std::option::Option<std::string::String>,
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quote_volume_raw: std::option::Option<std::string::String>,
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first_trade_signature: std::option::Option<std::string::String>,
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last_trade_signature: std::option::Option<std::string::String>,
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) -> Self {
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let now = chrono::Utc::now();
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Self {
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id: None,
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pair_id,
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timeframe_seconds,
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bucket_start_unix,
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bucket_end_unix,
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open_price_quote_per_base,
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high_price_quote_per_base,
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low_price_quote_per_base,
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close_price_quote_per_base,
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trade_count,
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buy_count,
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sell_count,
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base_volume_raw,
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quote_volume_raw,
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first_trade_signature,
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last_trade_signature,
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created_at: now,
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updated_at: now,
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}
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}
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}
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impl TryFrom<crate::KbPairCandleEntity> for KbPairCandleDto {
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type Error = crate::KbError;
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fn try_from(entity: crate::KbPairCandleEntity) -> Result<Self, Self::Error> {
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let created_at_result = chrono::DateTime::parse_from_rfc3339(&entity.created_at);
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let created_at = match created_at_result {
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Ok(created_at) => created_at.with_timezone(&chrono::Utc),
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Err(error) => {
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return Err(crate::KbError::Db(format!(
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"cannot parse pair_candle created_at '{}': {}",
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entity.created_at, error
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)));
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}
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};
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let updated_at_result = chrono::DateTime::parse_from_rfc3339(&entity.updated_at);
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let updated_at = match updated_at_result {
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Ok(updated_at) => updated_at.with_timezone(&chrono::Utc),
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Err(error) => {
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return Err(crate::KbError::Db(format!(
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"cannot parse pair_candle updated_at '{}': {}",
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entity.updated_at, error
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)));
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}
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};
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Ok(Self {
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id: Some(entity.id),
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pair_id: entity.pair_id,
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timeframe_seconds: entity.timeframe_seconds,
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bucket_start_unix: entity.bucket_start_unix,
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bucket_end_unix: entity.bucket_end_unix,
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open_price_quote_per_base: entity.open_price_quote_per_base,
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high_price_quote_per_base: entity.high_price_quote_per_base,
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low_price_quote_per_base: entity.low_price_quote_per_base,
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close_price_quote_per_base: entity.close_price_quote_per_base,
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trade_count: entity.trade_count,
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buy_count: entity.buy_count,
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sell_count: entity.sell_count,
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base_volume_raw: entity.base_volume_raw,
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quote_volume_raw: entity.quote_volume_raw,
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first_trade_signature: entity.first_trade_signature,
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last_trade_signature: entity.last_trade_signature,
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created_at,
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updated_at,
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})
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}
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}
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