use crate::buffers::{HexBuffer, PlotBuffer, TextBuffer};
use crate::logging::LogWriter;
use crate::panels::plot_view;
use pipeview_client::config::SessionConfig;

#[derive(Clone)]
pub enum ConnectionStatus {
    Connected,
    Disconnected,
    Connecting,
    Error(String),
}

impl ConnectionStatus {
    pub fn badge(&self) -> (&'static str, &'static str) {
        match self {
            Self::Connected => ("[connected]", "Connected"),
            Self::Disconnected => ("[disconnected]", "Disconnected"),
            Self::Connecting => ("[connecting]", "Connecting"),
            Self::Error(_) => ("[error]", "Error"),
        }
    }
}

#[derive(Clone, Copy, PartialEq)]
pub enum View {
    Text,
    Hex,
    Plot,
}

#[derive(Clone, Copy, PartialEq)]
pub enum SendMode {
    Text,
    Hex,
}

#[derive(Clone, Copy, PartialEq)]
#[allow(clippy::upper_case_acronyms)]
pub enum LineEnding {
    None,
    LF,
    CR,
    CRLF,
}

impl std::fmt::Display for LineEnding {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            Self::None => write!(f, "None"),
            Self::LF => write!(f, "LF (\\n)"),
            Self::CR => write!(f, "CR (\\r)"),
            Self::CRLF => write!(f, "CRLF (\\r\\n)"),
        }
    }
}

#[derive(Clone, Copy)]
pub struct DisplayOptions {
    pub show_timestamp: bool,
    pub show_direction: bool,
    pub show_pipeline: bool,
}

#[derive(Clone, Default)]
pub struct SearchState {
    pub query: String,
    pub matches: Vec<usize>,
    pub current_match: usize,
    pub case_sensitive: bool,
    pub active: bool,
    pub just_opened: bool,
}

impl SearchState {
    pub fn clear(&mut self) {
        self.query.clear();
        self.matches.clear();
        self.current_match = 0;
        self.active = false;
        self.just_opened = false;
    }

    pub fn next(&mut self) {
        if !self.matches.is_empty() {
            self.current_match = (self.current_match + 1) % self.matches.len();
        }
    }

    pub fn prev(&mut self) {
        if !self.matches.is_empty() {
            self.current_match = if self.current_match == 0 {
                self.matches.len() - 1
            } else {
                self.current_match - 1
            };
        }
    }

    pub fn match_count(&self) -> usize {
        self.matches.len()
    }

    pub fn current_display(&self) -> usize {
        if self.matches.is_empty() {
            0
        } else {
            self.current_match + 1
        }
    }
}

pub struct SessionTab {
    pub id: u64,
    pub session_config: SessionConfig,
    pub status: ConnectionStatus,
    pub console: TextBuffer,
    pub hex: HexBuffer,
    pub plot: PlotBuffer,
    pub plot_view: plot_view::PlotViewState,
    pub view: View,
    pub auto_reconnect: bool,
    pub dtr: bool,
    pub rts: bool,
    pub send_input: String,
    pub send_mode: SendMode,
    pub line_ending: LineEnding,
    pub send_status: Option<String>,
    pub search: SearchState,
    pub log_enabled: bool,
    pub log_path: String,
    pub show_sent: bool,
    pub log_writer: Option<LogWriter>,
}