path: root/src/message_view.rs

use std::{path::PathBuf, time::Duration};

use chrono::{NaiveDate, NaiveDateTime, TimeDelta};
use iced::color;
use iced::widget::text_editor;
use iced::{
    border::Radius,
    font::{Style, Weight},
    widget::{button, column, container, image, row, scrollable, text, text_editor::Content},
    Border, Color, Element, Font,
    Length::{Fill, Shrink},
    Theme,
};
use indexmap::IndexMap;
use jid::JID;
use serde::{Deserialize, Serialize};
use uuid::Uuid;

use crate::{icons::Icon, MacawChat, MacawMessage};

pub struct MessageView {
    pub file_root: PathBuf,
    // references chats, users
    pub chat: MacawChat,
    // references users, messages
    pub messages: IndexMap<Uuid, MacawMessage>,
    pub config: Config,
    pub new_message: Content,
    pub shift_pressed: bool,
}

#[derive(Serialize, Deserialize, Clone)]
pub struct Config {
    pub send_on_enter: bool,
}

impl Default for Config {
    fn default() -> Self {
        Self {
            send_on_enter: true,
        }
    }
}

#[derive(Debug, Clone)]
pub enum Message {
    MessageHistory(Vec<MacawMessage>),
    Message(MacawMessage),
    MessageCompose(text_editor::Action),
    SendMessage(String),
}

pub enum Action {
    None,
    SendMessage(String),
}

impl MessageView {
    pub fn new(chat: MacawChat, config: &super::Config, file_root: PathBuf) -> Self {
        Self {
            chat,
            // TODO: save position in message history
            messages: IndexMap::new(),
            // TODO: save draft (as part of chat struct?)
            new_message: Content::new(),
            config: config.message_view_config.clone(),
            // TODO: have centralised modifier state location?
            shift_pressed: false,
            file_root,
        }
    }

    pub fn update(&mut self, message: Message) -> Action {
        match message {
            Message::MessageCompose(a) => {
                match &a {
                    text_editor::Action::Edit(edit) => match edit {
                        text_editor::Edit::Enter => {
                            if self.config.send_on_enter {
                                if !self.shift_pressed {
                                    let message = self.new_message.text();
                                    self.new_message = Content::new();
                                    return Action::SendMessage(message);
                                }
                            } else {
                                if self.shift_pressed {
                                    let message = self.new_message.text();
                                    self.new_message = Content::new();
                                    return Action::SendMessage(message);
                                }
                            }
                        }
                        _ => {}
                    },
                    _ => {}
                }
                self.new_message.perform(a);
                Action::None
            }
            Message::SendMessage(m) => {
                self.new_message = Content::new();
                Action::SendMessage(m)
            }
            Message::MessageHistory(macaw_messages) => {
                if self.messages.is_empty() {
                    self.messages = macaw_messages
                        .into_iter()
                        .map(|message| (message.id, message))
                        .collect()
                } else {
                    for message in macaw_messages {
                        let index = match self
                            .messages
                            .binary_search_by(|_, value| value.timestamp.cmp(&message.timestamp))
                        {
                            Ok(i) => i,
                            Err(i) => i,
                        };
                        self.messages.insert_before(index, message.id, message);
                    }
                }
                Action::None
            }
            Message::Message(macaw_message) => {
                if let Some((_, last)) = self.messages.last() {
                    if last.timestamp < macaw_message.timestamp {
                        self.messages.insert(macaw_message.id, macaw_message);
                    } else {
                        let index = match self.messages.binary_search_by(|_, value| {
                            value.timestamp.cmp(&macaw_message.timestamp)
                        }) {
                            Ok(i) => i,
                            Err(i) => i,
                        };
                        self.messages
                            .insert_before(index, macaw_message.id, macaw_message);
                    }
                } else {
                    self.messages.insert(macaw_message.id, macaw_message);
                }
                Action::None
            }
        }
    }

    pub fn view(&self) -> Element<Message> {
        let mut messages_view = column![].spacing(8).padding(8);
        let mut last_timestamp = NaiveDateTime::MIN;
        let mut last_user: Option<JID> = None;
        for (_id, message) in &self.messages {
            let message_timestamp = message.timestamp.naive_local();
            if message_timestamp.date() > last_timestamp.date() {
                messages_view = messages_view.push(date(message_timestamp.date()));
            }
            if last_user.as_ref() != Some(&message.from.jid)
                || message_timestamp - last_timestamp > TimeDelta::minutes(3)
            {
                messages_view = messages_view.push(self.message(message, true));
            } else {
                messages_view = messages_view.push(self.message(message, false));
            }
            last_user = Some(message.from.jid.clone());
            last_timestamp = message_timestamp;
        }
        let text_editor = text_editor(&self.new_message)
            .placeholder("new message")
            .on_action(Message::MessageCompose)
            .wrapping(text::Wrapping::WordOrGlyph)
            .style(|theme, status| text_editor::Style {
                background: color!(0xdcdcdc).into(),
                border: Border {
                    color: Color::BLACK,
                    width: 0.0,
                    radius: 0.into(),
                },
                icon: color!(0x00000000),
                placeholder: color!(0xacacac),
                value: color!(0x000000),
                selection: color!(0xffce07),
            });
        let message_send_input = row![
            text_editor,
            // button(Icon::NewBubble24).on_press(Message::SendMessage(self.new_message.text()))
        ]
        .padding(8);
        column![
            self.header(),
            scrollable(messages_view)
                .height(Fill)
                .width(Fill)
                .spacing(1)
                .anchor_bottom(),
            message_send_input
        ]
        .into()
    }

    pub fn header(&self) -> Element<'_, Message> {
        // TODO: contact stored here for name
        let mut bold = Font::with_name("K2D");
        bold.weight = Weight::Bold;
        let mut sweet = Font::with_name("Diolce");
        sweet.style = Style::Italic;
        let mut name_and_jid = column![];
        if let Some(nick) = &self.chat.user.nick {
            name_and_jid = name_and_jid.push(text(nick).font(bold).size(20));
        }
        let jid = self.chat.user.jid.as_bare().to_string();
        name_and_jid = name_and_jid.push(text(jid).font(sweet));
        let mut header = row![];
        if let Some(avatar) = &self.chat.user.avatar {
            let mut path = self.file_root.join(avatar);
            path.set_extension("jpg");
            header = header.push(container(image(path).width(48).height(48)));
        }
        header = header.push(name_and_jid);
        container(
            container(header.spacing(8).padding(8))
                .style(|theme: &Theme| {
                    container::Style::default()
                        .background(theme.extended_palette().background.strong.color)
                })
                .width(Fill),
        )
        .padding(8)
        .width(Fill)
        .into()
    }

    pub fn message<'a>(&'a self, message: &'a MacawMessage, major: bool) -> Element<'a, Message> {
        let timestamp = message.timestamp.naive_local();
        let timestamp = timestamp.time().format("%H:%M").to_string();

        if major {
            let nick: String = if let Some(nick) = &message.from.nick {
                nick.to_string()
            } else {
                message.from.jid.as_bare().to_string()
            };
            let mut bold = Font::with_name("K2D");
            bold.weight = Weight::Bold;
            let mut header = row![text(nick).font(bold), text(timestamp)].spacing(8);
            if let Some(delivery) = message.delivery {
                let icon = match delivery {
                    filamento::chat::Delivery::Sending => Some(Icon::Sending16),
                    filamento::chat::Delivery::Written => None,
                    filamento::chat::Delivery::Sent => Some(Icon::Sent16),
                    filamento::chat::Delivery::Delivered => Some(Icon::Delivered16),
                    filamento::chat::Delivery::Read => Some(Icon::Delivered16),
                    filamento::chat::Delivery::Failed => Some(Icon::Error16Color),
                    filamento::chat::Delivery::Queued => Some(Icon::Sending16),
                };
                if let Some(icon) = icon {
                    header = header.push(icon);
                }
            }
            let message_right = column![header, text(&message.body.body)].spacing(8);
            let mut major_message = row([]);
            if let Some(avatar) = &message.from.avatar {
                let mut path = self.file_root.join(avatar);
                path.set_extension("jpg");
                // info!("got avatar: {:?}", path);
                major_message = major_message.push(container(image(path).width(48).height(48)));
            }
            major_message = major_message.push(message_right);
            major_message.spacing(8).into()
        } else {
            row![
                container(text(timestamp)).width(48),
                text(&message.body.body)
            ]
            .spacing(8)
            .into()
        }
    }
}

pub fn date(date: NaiveDate) -> Element<'static, Message> {
    container(text(date.to_string())).center_x(Fill).into()
}