#include "preview_box.hpp"
#include "canvas/canvas_gl.hpp"
#include "pool/symbol.hpp"
#include <sstream>

namespace horizon {
SymbolPreviewBox::SymbolPreviewBox(const std::pair<int, bool> &v)
    : Gtk::Box(Gtk::ORIENTATION_VERTICAL, 5), view(v), symbol(UUID::random())
{
    auto tbox = Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL, 5));

    auto la = Gtk::manage(new Gtk::Label());
    std::stringstream ss;
    ss << "<b>";
    ss << view.first << "°";
    if (view.second) {
        ss << " mirrored";
    }
    ss << "</b>";
    la->set_markup(ss.str());
    la->set_xalign(0);
    tbox->pack_start(*la, true, true, 0);

    set_button = Gtk::manage(new Gtk::Button("Set"));
    tbox->pack_start(*set_button, false, false, 0);
    set_button->signal_clicked().connect([this] {
        if (text_placements.size()) {
            set_button->set_label("Set");
            clear_placements();
        }
        else {
            set_button->set_label("Clear");
            set_placements();
        }
    });

    pack_start(*tbox, false, false, 0);
    tbox->show_all();

    canvas = Gtk::manage(new CanvasGL());
    canvas->set_selection_allowed(false);
    pack_start(*canvas, true, true, 0);
    canvas->show();
}

void SymbolPreviewBox::update(const Symbol &sym)
{
    for (const auto &la : sym.get_layers()) {
        canvas->set_layer_display(la.first, LayerDisplay(true, LayerDisplay::Mode::FILL));
    }
    Placement p;
    p.set_angle_deg(view.first);
    p.mirror = view.second;
    symbol = sym;
    symbol.text_placements.clear();
    for (const auto &it : text_placements) {
        std::tuple<int, bool, UUID> key(view.first, view.second, it.first);
        symbol.text_placements[key] = it.second;
    }
    symbol.apply_placement(p);
    canvas->update(symbol, p);
}

void SymbolPreviewBox::zoom_to_fit()
{
    auto bb = symbol.get_bbox();
    int64_t pad = 1_mm;
    bb.first.x -= pad;
    bb.first.y -= pad;

    bb.second.x += pad;
    bb.second.y += pad;
    canvas->zoom_to_bbox(bb.first, bb.second);
}

void SymbolPreviewBox::set_placements()
{
    text_placements.clear();
    for (const auto &it : symbol.texts) {
        text_placements[it.second.uuid] = it.second.placement;
    }
    s_signal_changed.emit();
}

void SymbolPreviewBox::clear_placements()
{
    text_placements.clear();
    s_signal_changed.emit();
}

std::map<std::tuple<int, bool, UUID>, Placement> SymbolPreviewBox::get_text_placements() const
{
    std::map<std::tuple<int, bool, UUID>, Placement> r;
    for (const auto &it : text_placements) {
        std::tuple<int, bool, UUID> key(view.first, view.second, it.first);
        r[key] = it.second;
    }
    return r;
}

void SymbolPreviewBox::set_text_placements(const std::map<std::tuple<int, bool, UUID>, Placement> &p)
{
    text_placements.clear();
    for (const auto &it : p) {
        int angle;
        bool mirror;
        UUID uu;
        std::tie(angle, mirror, uu) = it.first;
        if (view.first == angle && view.second == mirror) {
            text_placements[uu] = it.second;
            set_button->set_label("Clear");
        }
    }
}

void SymbolPreviewBox::set_canvas_appearance(const Appearance &a)
{
    canvas->set_appearance(a);
}

} // namespace horizon
