use eframe::egui;

#[non_exhaustive]
#[derive(Debug)]
pub enum ModalState {
    NewPlate(NewPlateModalState),
    NewPlateComplete(NewPlateModalComplete),
    EditPlate(EditPlateModalState),
    EditPlateComplete(EditPlateModalStateComplete),
    None,
}
impl Default for ModalState {
    fn default() -> Self {
        Self::None
    }
}

#[non_exhaustive]
#[derive(Debug)]
pub struct NewPlateModalState {
    pub name: String,
    pub plate_type: plate_tool_lib::plate::PlateType,
    pub plate_format: plate_tool_lib::plate::PlateFormat,
    window_open: bool,
}
impl Default for NewPlateModalState {
    fn default() -> Self {
        Self {
            name: String::default(),
            plate_type: plate_tool_lib::plate::PlateType::default(),
            plate_format: plate_tool_lib::plate::PlateFormat::default(),
            window_open: true,
        }
    }
}

#[non_exhaustive]
#[derive(Debug, Default)]
pub struct NewPlateModalComplete(pub Option<plate_tool_lib::plate_instances::PlateInstance>);

pub fn show_modal_if_open(ctx: &egui::Context, modal_state: &mut ModalState) {
    match modal_state {
        ModalState::NewPlate(_) => show_new_plate_modal(ctx, modal_state),
        ModalState::EditPlate(_) => show_edit_plate_modal(ctx, modal_state),
        _ => (),
    }
}
fn show_new_plate_modal(ctx: &egui::Context, modal_state: &mut ModalState) {
    let state: &mut NewPlateModalState = {
        if let ModalState::NewPlate(x) = modal_state {
            x
        } else {
            *modal_state = ModalState::NewPlate(NewPlateModalState::default());
            if let ModalState::NewPlate(y) = modal_state {
                y
            } else {
                unreachable!()
            }
        }
    };

    let mut output: Option<plate_tool_lib::plate_instances::PlateInstance> = None;
    egui::Window::new("New Plate")
        .order(egui::Order::Foreground)
        .collapsible(false)
        .resizable(false)
        .open(&mut state.window_open)
        .show(ctx, |ui| {
            ui.vertical(|ui| {
                ui.add(egui::TextEdit::singleline(&mut state.name).hint_text("Plate Name"));
                egui::ComboBox::from_label("Plate Type")
                    .selected_text(format!("{:?}", state.plate_type))
                    .show_ui(ui, |ui| {
                        ui.selectable_value(
                            &mut state.plate_type,
                            plate_tool_lib::plate::PlateType::Source,
                            "Source",
                        );
                        ui.selectable_value(
                            &mut state.plate_type,
                            plate_tool_lib::plate::PlateType::Destination,
                            "Destination",
                        );
                    });
                egui::ComboBox::from_label("Plate Format")
                    .selected_text(format!("{:?}", state.plate_format))
                    .show_ui(ui, |ui| {
                        ui.selectable_value(
                            &mut state.plate_format,
                            plate_tool_lib::plate::PlateFormat::W96,
                            "96W",
                        );
                        ui.selectable_value(
                            &mut state.plate_format,
                            plate_tool_lib::plate::PlateFormat::W384,
                            "384W",
                        );
                        ui.selectable_value(
                            &mut state.plate_format,
                            plate_tool_lib::plate::PlateFormat::W1536,
                            "1536W",
                        );
                    });
                if ui.button("Add").clicked() {
                    output = Some(plate_tool_lib::plate_instances::PlateInstance::new(
                        state.plate_type,
                        state.plate_format,
                        state.name.clone(),
                    ));
                }
            });
        });
    if state.window_open == false {
        *modal_state = ModalState::NewPlateComplete(NewPlateModalComplete(None));
        return;
    }
    if output.is_some() {
        *modal_state = ModalState::NewPlateComplete(NewPlateModalComplete(output));
    }
}
pub fn open_new_plate_modal(modal_state: &mut ModalState) {
    // Do not close another modal
    if matches!(modal_state, ModalState::None) {
        *modal_state = ModalState::NewPlate(NewPlateModalState::default());
    }
}

pub fn open_new_plate_modal_with_default_type(
    modal_state: &mut ModalState,
    plate_type: plate_tool_lib::plate::PlateType,
) {
    // Do not close another modal
    if matches!(modal_state, ModalState::None) {
        *modal_state = ModalState::NewPlate(NewPlateModalState {
            plate_type: plate_type,
            ..Default::default()
        });
    }
}

#[non_exhaustive]
#[derive(Debug, Clone)]
pub struct EditPlateModalState {
    pub name: String,
    pub plate_type: plate_tool_lib::plate::PlateType,
    pub plate_format: plate_tool_lib::plate::PlateFormat,
    pub id: plate_tool_lib::uuid::Uuid,
    window_open: bool,
}
impl EditPlateModalState {
    fn new(
        name: &str,
        plate_type: plate_tool_lib::plate::PlateType,
        plate_format: plate_tool_lib::plate::PlateFormat,
        id: plate_tool_lib::uuid::Uuid,
    ) -> Self {
        Self {
            name: name.to_owned(),
            plate_type,
            plate_format,
            id,
            window_open: true,
        }
    }
}
#[non_exhaustive]
#[derive(Debug)]
pub struct EditPlateModalStateComplete(pub Option<EditPlateModalState>);

fn show_edit_plate_modal(ctx: &egui::Context, modal_state: &mut ModalState) {
    let state: &mut EditPlateModalState = {
        if let ModalState::EditPlate(x) = modal_state {
            x
        } else {
            return;
        }
    };

    let mut should_complete: bool = false;
    egui::Window::new("Edit Plate")
        .order(egui::Order::Foreground)
        .collapsible(false)
        .resizable(false)
        .open(&mut state.window_open)
        .show(ctx, |ui| {
            ui.vertical(|ui| {
                ui.add(egui::TextEdit::singleline(&mut state.name).hint_text("Plate Name"));
                egui::ComboBox::from_label("Plate Format")
                    .selected_text(format!("{:?}", state.plate_format))
                    .show_ui(ui, |ui| {
                        ui.selectable_value(
                            &mut state.plate_format,
                            plate_tool_lib::plate::PlateFormat::W96,
                            "96W",
                        );
                        ui.selectable_value(
                            &mut state.plate_format,
                            plate_tool_lib::plate::PlateFormat::W384,
                            "384W",
                        );
                        ui.selectable_value(
                            &mut state.plate_format,
                            plate_tool_lib::plate::PlateFormat::W1536,
                            "1536W",
                        );
                    });
                if ui.button("Save").clicked() {
                    should_complete = true;
                }
            });
        });
    if state.window_open == false {
        *modal_state = ModalState::EditPlateComplete(EditPlateModalStateComplete(None));
        return;
    }
    if should_complete {
        *modal_state =
            ModalState::EditPlateComplete(EditPlateModalStateComplete(Some(state.to_owned())));
        return;
    }
}
pub fn open_edit_plate_modal(
    modal_state: &mut ModalState,
    name: &str,
    plate_type: plate_tool_lib::plate::PlateType,
    plate_format: plate_tool_lib::plate::PlateFormat,
    id: plate_tool_lib::uuid::Uuid,
) {
    // Do not close another modal
    if matches!(modal_state, ModalState::None) {
        *modal_state =
            ModalState::EditPlate(EditPlateModalState::new(name, plate_type, plate_format, id))
    }
}
pub fn open_edit_plate_modal_plateinstance(
    modal_state: &mut ModalState,
    plate_instance: &plate_tool_lib::plate_instances::PlateInstance,
) {
    // Do not close another modal
    if matches!(modal_state, ModalState::None) {
        *modal_state = ModalState::EditPlate(EditPlateModalState::new(
            &plate_instance.name,
            plate_instance.plate.plate_type,
            plate_instance.plate.plate_format,
            plate_instance.get_uuid(),
        ));
    }
}