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// Traits
pub use crate::traits::{Configurable, Plotable, Saveable};
use core::fmt::Display;
use core::ops::Add;

pub mod bin;
pub mod comparison;
pub mod error;
pub mod violin;

pub use bin::{ProcessBin, ProcessBins};
pub use comparison::Processes;
pub use error::{ProcessError, ProcessErrors};
pub use violin::{ProcessViolin, ProcessViolins};

/// Indexed sequence of values.
///
/// # Remarks
///
/// With the [prelude] module, we can easily convert a tuple of [IntoIterator] structs
/// into [Process] for ease of use. The same can be achieved with the
/// [new] method.
///
/// # Examples
///
/// Quick plot.
/// ```no_run
/// use preexplorer::prelude::*;
/// ((0..10), (0..10)).preexplore().plot("my_identifier").unwrap();
/// ```
///
/// Compare [Process] structs.
/// ```no_run
/// use preexplorer::prelude::*;
/// pre::Processes::new(vec![
///     ((0..10), (0..10)).preexplore(),
///     ((0..10), (0..10)).preexplore(),
///     ])
///     .plot("my_identifier").unwrap();
/// ```
///
/// [prelude]: prelude/index.html
/// [IntoIterator]: https://doc.rust-lang.org/core/iter/trait.IntoIterator.html
/// [Process]: struct.Process.html
/// [new]: struct.Process.html#method.new
#[derive(Debug, PartialEq, Clone)]
#[cfg_attr(feature = "use-serde", derive(serde::Serialize, serde::Deserialize))]
pub struct Process<T, S>
where
    T: Display + Clone,
    S: Display + Clone,
{
    domain: Vec<T>,
    image: Vec<S>,
    config: crate::configuration::Configuration,
}

impl<T, S> Process<T, S>
where
    T: Display + Clone,
    S: Display + Clone,
{
    /// Construct a new ``Process<T, S>``.
    ///
    /// # Examples
    ///
    /// From a complicated computation.
    /// ```
    /// use preexplorer::prelude::*;
    /// let data = (0..10).map(|i| i * i + 1);
    /// let pro = pre::Process::new((0..10), data);
    /// ```
    pub fn new<I, J>(domain: I, image: J) -> Process<T, S>
    where
        I: IntoIterator<Item = T>,
        J: IntoIterator<Item = S>,
    {
        let domain: Vec<T> = domain.into_iter().collect();
        let image: Vec<S> = image.into_iter().collect();
        let config = crate::configuration::Configuration::default();

        Process {
            domain,
            image,
            config,
        }
    }
}

impl<T, S> Add for Process<T, S>
where
    T: Display + Clone,
    S: Display + Clone,
{
    type Output = crate::Processes<T, S>;

    fn add(self, other: crate::Process<T, S>) -> crate::Processes<T, S> {
        let mut cmp = self.into();
        cmp += other;
        cmp
    }
}

impl<T, S> Configurable for Process<T, S>
where
    T: Display + Clone,
    S: Display + Clone,
{
    fn configuration_mut(&mut self) -> &mut crate::configuration::Configuration {
        &mut self.config
    }
    fn configuration(&self) -> &crate::configuration::Configuration {
        &self.config
    }
}

impl<T, S> Saveable for Process<T, S>
where
    T: Display + Clone,
    S: Display + Clone,
{
    fn plotable_data(&self) -> String {
        // Initial warning
        if self.domain.is_empty() {
            eprintln!("Warning: There is no data.");
        }

        let mut plotable_data = String::new();
        for (time, value) in self.domain.clone().into_iter().zip(self.image.clone()) {
            plotable_data.push_str(&format!("{}\t{}\n", time, value));
        }
        plotable_data
    }
}

impl<T, S> Plotable for Process<T, S>
where
    T: Display + Clone,
    S: Display + Clone,
{
    fn plot_script(&self) -> String {
        let mut gnuplot_script = self.opening_plot_script();

        let dashtype = self.dashtype().unwrap_or(1);

        gnuplot_script += &format!(
            "plot {:?} using 1:2 with {} dashtype {}\n",
            self.data_path(),
            self.style(),
            dashtype,
        );
        gnuplot_script += &self.ending_plot_script();

        gnuplot_script
    }
}