use maud::{html, PreEscaped};
use peach_lib::sbot::SbotStatus;
use rouille::Request;

use crate::{
    templates,
    utils::{cookie::CookieRequest, flash::FlashRequest, theme},
};

/// Read the status of the go-sbot service and render buttons accordingly.
fn render_process_buttons() -> PreEscaped<String> {
    // retrieve go-sbot systemd process status
    let sbot_status = SbotStatus::read();

    html! {
        // render the stop and restart buttons if sbot process is currently active
        @if let Ok(status) = sbot_status {
            @if status.state == Some("active".to_string()) {
                a id="stop" class="button button-primary center" href="/settings/scuttlebutt/stop" title="Stop Sbot" { "Stop Sbot" }
                a id="restart" class="button button-primary center" href="/settings/scuttlebutt/restart" title="Restart Sbot" { "Restart Sbot" }
            // render the start button if sbot process is currently inactive
            } @else {
                a id="start" class="button button-primary center" href="/settings/scuttlebutt/start" title="Start Sbot" { "Start Sbot" }
            }
        // render the start button if an error was returned by the status query
        } @else {
            a id="start" class="button button-primary center" href="/settings/scuttlebutt/start" title="Start Sbot" { "Start Sbot" }
        }
    }
}

// ROUTE: /settings/scuttlebutt

/// Scuttlebutt settings menu template builder.
pub fn build_template(request: &Request) -> PreEscaped<String> {
    // check for flash cookies; will be (None, None) if no flash cookies are found
    let (flash_name, flash_msg) = request.retrieve_flash();

    let menu_template = html! {
        (PreEscaped("<!-- SCUTTLEBUTT SETTINGS MENU -->"))
        div class="card center" {
            (PreEscaped("<!-- BUTTONS -->"))
            div id="settingsButtons" {
                a id="configureSbot" class="button button-primary center" href="/settings/scuttlebutt/configure" title="Configure Sbot" { "Configure Sbot" }
                // conditionally render the start / stop / restart buttons
                (render_process_buttons())
            }
            // render flash message if cookies were found in the request
            @if let (Some(name), Some(msg)) = (flash_name, flash_msg) {
                (PreEscaped("<!-- FLASH MESSAGE -->"))
                (templates::flash::build_template(name, msg))
            }
        }
    };

    // retrieve the value of the "back_url" cookie
    // if the cookie value is not found then set a hardcoded fallback value
    let back_url = request.retrieve_cookie("back_url").or(Some("/settings"));

    // wrap the nav bars around the settings menu template content
    // parameters are template, title and back url
    let body = templates::nav::build_template(menu_template, "Scuttlebutt Settings", back_url);

    // query the current theme so we can pass it into the base template builder
    let theme = theme::get_theme();

    // render the base template with the provided body
    templates::base::build_template(body, theme)
}