git-perf 0.17.0

use anyhow::{Context, Result};
use itertools::Itertools;
use std::{
    collections::HashMap,
    time::{SystemTime, UNIX_EPOCH},
};

use chrono::prelude::*;

use crate::{
    config,
    data::MeasurementData,
    git::git_interop::add_note_line_to_head,
    serialization::{serialize_multiple, serialize_single, DELIMITER},
};

pub fn add_multiple(
    measurement: &str,
    values: &[f64],
    key_values: &[(String, String)],
) -> Result<()> {
    let timestamp = SystemTime::now()
        .duration_since(UNIX_EPOCH)
        .context("Failed to get system time")?;

    let timestamp = timestamp.as_secs_f64();
    let key_values: HashMap<_, _> = key_values.iter().cloned().collect();
    let epoch = config::determine_epoch_from_config(measurement).unwrap_or(0);
    let name = measurement.to_owned();

    let mds = values
        .iter()
        .map(|&val| MeasurementData {
            epoch,
            name: name.clone(),
            timestamp,
            val,
            key_values: key_values.clone(),
        })
        .collect_vec();

    let serialized = serialize_multiple(&mds);

    add_note_line_to_head(&serialized)?;

    Ok(())
}

pub fn add(measurement: &str, value: f64, key_values: &[(String, String)]) -> Result<()> {
    let timestamp = SystemTime::now()
        .duration_since(UNIX_EPOCH)
        .context("Failed to get system time")?;

    let timestamp = timestamp.as_secs_f64();
    let key_values: HashMap<_, _> = key_values.iter().cloned().collect();

    let md = MeasurementData {
        epoch: config::determine_epoch_from_config(measurement).unwrap_or(0),
        name: measurement.to_owned(),
        timestamp,
        val: value,
        key_values,
    };

    let serialized = serialize_single(&md, DELIMITER);

    add_note_line_to_head(&serialized)?;

    Ok(())
}

pub fn remove_measurements_from_commits(older_than: DateTime<Utc>) -> Result<()> {
    crate::git::git_interop::remove_measurements_from_commits(older_than)
}