#include "client/window/text_input_window.hh"

namespace client {
namespace window {

using tiw = class text_input_window;

const std::string& tiw::get_send_text() noexcept {
    auto& text = client::input::state.text_input;
    text = std::string{std::begin(text),
                       std::begin(text) +
                           static_cast<long>(std::min(std::size(text),
                                                      shared::MAX_SAY_LENGTH))};
    return text;
}

proto::packet tiw::make_say_packet() noexcept {
    proto::packet packet;

    const auto sub_say_packet = packet.mutable_say_packet();
    sub_say_packet->set_text(get_send_text());

    return packet;
}

bool tiw::maybe_handle_keydown(const SDL_Event& event) noexcept {
    if (event.key.keysym.sym == SDLK_BACKSPACE) {
        if (!client::input::state.text_input.empty()) {
            client::input::state.text_input.pop_back();
        }
        return true;
    }

    if (event.key.keysym.sym != SDLK_RETURN || event.key.repeat) {
        return false;
    }

    if (!client::input::state.text_input.empty()) {
        client::state::connection->rsend_packet(make_say_packet());
    }

    pop_window();
    return true;
}

const glm::vec3& tiw::get_draw_colour() noexcept {
    if (client::input::state.text_input.length() >= shared::MAX_SAY_LENGTH) {
        return basic_window::highlight_clr;
    }
    return basic_window::primary_clr;
}

bool tiw::maybe_handle_event(const SDL_Event& event) noexcept {
    switch (event.type) {
    case SDL_KEYDOWN:
        return this->maybe_handle_keydown(event);
    }

    return basic_window::maybe_handle_event(event);
}

void tiw::draw() noexcept {
    basic_window::draw();

    client::render::draw_rectangle({.pos = {.offset = this->pos},
                                    .size = {.offset = this->size},
                                    .colour = {this->get_draw_colour(), 1.0f}});

    client::render::draw_text(
        this->get_send_text(),
        {.pos = {.extent = {0.0f, 0.0f},
                 .offset = this->pos + (this->size / 2.0f)},
         .offset_height = this->size.y / 2.0f,
         .colour = {this->font_colour, 1.0f},
         .has_backing = false,
         .is_centered = true,
         .is_vcentered = true});
};

} // namespace window
} // namespace client