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use super::tmux_interface::*;
use super::tmux_interface_error::TmuxInterfaceError;
use std::process::Output;


/// # Manual
///
/// ```text
/// tmux command-prompt [-1i] [-I inputs] [-p prompts] [-t target-client] [template]
/// ```
#[derive(Default)]
pub struct CommandPrompt<'a> {
    pub one_keypress: Option<bool>,             // [-1]
    pub on_input_change: Option<bool>,          // [-i]
    pub inputs: Option<&'a str>,                // [-I inputs]
    pub prompts: Option<&'a str>,               // [-p prompts]
    pub target_client: Option<&'a str>,         // [-t target-client]
    pub template: Option<&'a str>,              // [template]
}

impl<'a> CommandPrompt<'a> {
    pub fn new() -> Self {
        Default::default()
    }
}


/// Status line
impl<'a> TmuxInterface<'a> {


    const COMMAND_PROMPT: &'static str = "command-prompt";
    const CONFIRM_BEFORE: &'static str = "confirm-before";
    const DISPLAY_MESSAGE: &'static str = "display-message";


    /// # Manual
    ///
    /// ```text
    /// tmux command-prompt [-1i] [-I inputs] [-p prompts] [-t target-client] [template]
    /// ```
    pub fn command_prompt(&self,
                          command_prompt: &CommandPrompt
                          ) -> Result<Output, TmuxInterfaceError> {
        let mut args: Vec<&str> = Vec::new();
        if command_prompt.one_keypress.unwrap_or(false) { args.push(_1_KEY); }
        if command_prompt.on_input_change.unwrap_or(false) { args.push(i_KEY); }
        command_prompt.inputs.and_then(|s| Some(args.extend_from_slice(&[I_KEY, &s])));
        command_prompt.prompts.and_then(|s| Some(args.extend_from_slice(&[p_KEY, &s])));
        command_prompt.target_client.and_then(|s| Some(args.extend_from_slice(&[t_KEY, &s])));
        command_prompt.template.and_then(|s| Some(args.push(&s)));
        let output = self.subcommand(TmuxInterface::COMMAND_PROMPT, &args)?;
        Ok(output)
    }


    /// # Manual
    ///
    /// ```text
    /// tmux confirm-before [-p prompt] [-t target-client] command
    /// (alias: confirm)
    /// ```
    pub fn confirm_before(&self,
                          prompt: Option<&str>,
                          target_client: Option<&str>,
                          command: &str
                          ) -> Result<Output, TmuxInterfaceError> {
        let mut args: Vec<&str> = Vec::new();
        prompt.and_then(|s| Some(args.extend_from_slice(&[p_KEY, &s])));
        target_client.and_then(|s| Some(args.extend_from_slice(&[t_KEY, &s])));
        args.push(command);
        let output = self.subcommand(TmuxInterface::CONFIRM_BEFORE, &args)?;
        Ok(output)
    }


    /// # Manual
    ///
    /// ```text
    /// tmux display-message [-p] [-c target-client] [-t target-pane] [message]
    /// (alias: display)
    /// ```
    pub fn display_message(&self,
                           print: Option<bool>,
                           target_client: Option<&str>,
                           target_pane: Option<&str>,
                           message: Option<&str>
                           ) -> Result<Output, TmuxInterfaceError> {
        let mut args: Vec<&str> = Vec::new();
        if print.unwrap_or(false) { args.push(p_KEY); }
        target_client.and_then(|s| Some(args.extend_from_slice(&[c_KEY, s])));
        target_pane.and_then(|s| Some(args.extend_from_slice(&[t_KEY, s])));
        message.and_then(|s| Some(args.push(&s)));
        let output = self.subcommand(TmuxInterface::DISPLAY_MESSAGE, &args)?;
        Ok(output)
    }


}