gnuplot_wrapper/
script.rs

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use std::{fs::File, io::Write};

use crate::command::Command;

/// Gnuplot script
#[derive(Debug)]
pub struct Script {
    commands: Vec<String>,
    path: Option<String>
}

impl Script {
    /// Create script
    pub fn new() -> Self {
        return Script {
            commands: Vec::new(),
            path: None
        };
    }

    /// Add command
    pub fn add_raw_command(&mut self, command: &str) {
        self.commands.push(command.to_owned() + "\n");
    }

    /// Add command
    pub fn add_command(&mut self, command: impl Command) {
        self.commands.push(command.to_raw() + "\n");
    }

    /// Insert empty line in script
    pub fn br(&mut self) {
        self.commands.push("\n".to_owned());
    }

    /// Save script
    pub fn save(&mut self, path: &str) {
        self.path = Some(path.to_owned());
        let mut file: File = File::create_new(&path).expect(&format!("Error when creating file: {}", path));
        for command in &self.commands {
            file.write_fmt(format_args!("{}", command)).expect(&format!("Error when writing to file: {}", path));
        }
        file.flush().expect(&format!("Error when flushing file: {}", path));
    }

    /// Get script path
    pub fn get_path(&self) -> Option<String> {
        return self.path.clone();
    }

    /// Get printed script
    pub fn get_string(&self) -> String {
        let mut script: String = String::new();
        for line in &self.commands {
            script.push_str(&line);
        }
        return script;
    }
}