use std::path::PathBuf;

use crate::io;
use crate::message::{FileAction, ViewAction};
use crate::{Message, state::State};
use iced::Task;
use iced::widget::text_editor;

pub fn edit(state: &mut State, action: text_editor::Action) -> Task<Message> {
    state.apply_edit(action);
    Task::none()
}

pub fn switch_tab(state: &mut State, index: usize) -> Task<Message> {
    state.switch_tab(index);
    Task::none()
}

pub fn link_clicked(url: String) -> Task<Message> {
    println!("Opening link: {}", url);
    Task::none()
}

pub fn file_action(state: &mut State, action: FileAction) -> Task<Message> {
    match action {
        FileAction::New => {
            state.new_file();
            Task::none()
        }
        FileAction::Close(index) => {
            if state.close_file(index) {
                iced::exit()
            } else {
                Task::none()
            }
        }
        FileAction::Open => Task::perform(io::open_file(), Message::FileOpened),
        FileAction::Save => {
            let (current_path, content) = state.active_file_data();
            let path = current_path.cloned();
            Task::perform(io::save_file(path, content), Message::FileSaved)
        }
        FileAction::SaveAs => {
            let (_, content) = state.active_file_data();
            Task::perform(io::save_file(None, content), Message::FileSaved)
        }
    }
}

pub fn opened_file(state: &mut State, result: Result<(PathBuf, String), String>) -> Task<Message> {
    match result {
        Ok((path, content)) => {
            state.open_file(path, content);
        }
        Err(_error) => {}
    };

    Task::none()
}

pub fn saved_file(state: &mut State, result: Result<PathBuf, String>) -> Task<Message> {
    match result {
        Ok(path) => {
            state.set_active_file_path(path);
        }
        Err(_error) => {}
    };

    Task::none()
}

pub fn view_action(state: &mut State, action: ViewAction) -> Task<Message> {
    match action {
        ViewAction::Increase => state.increase_font(),
        ViewAction::Decrease => state.decrease_font(),
        ViewAction::Reset => state.reset_font(),
        ViewAction::TogglePreview => state.toggle_preview(),
    }

    Task::none()
}