#include "stdafx.h"
#include "ConsoleScreenView.h"
#include "UiTextBox.h"
#include "UiPanel.h"
#include "UiWidgetManager.h"
#include "UiRenderContext.h"
#include "UiManager.h"

//////////////////////////////////////////////////////////////////////////

#define CONSOLE_SEPARATOR_STR   L". . . . . . . . . . . . . . . . . . . . . . . . . . . . ."
#define UI_CONSOLE_FADE_SPEED   12.0f

enum 
{ 
    UI_CONSOLE_NUM_TEXTLINES = 21, 
    UI_CONSOLE_X_OFFSET = 6,
    UI_CONSOLE_CURSOR_BLINKING_TIME_MSECONDS = 1200,
    UI_CONSOLE_MAX_INPUT_HISTORY_RECORDS = 32,
};

//////////////////////////////////////////////////////////////////////////

ConsoleScreenView::ConsoleScreenView()
    : UiView(eUiViewLayer_Overlay)
{
}

void ConsoleScreenView::ToggleConsole()
{
    if (IsActive())
    {
        mShowStatus = CurrentShowStatus_FadeOut;
        return;
    }

    Activate();
}

bool ConsoleScreenView::LoadContent()
{
    if (IsHierarchyLoaded())
        return true;

    mConsoleFont = gUiManager.GetDefaultFont(eDefaultFont::Console);
    cxx_assert(mConsoleFont);
    if (mConsoleFont)
    {
        mConsoleTextInvalidated = true;
        mConsoleScroll = 0;
        mHistoryCursor = -1;

        const GameProfile::UserSettings& userSettings = gGameProfile.GetUserSettings();
        // setup console dimensions
        mConsoleRect.x = 0;
        mConsoleRect.y = 0;
        mConsoleRect.w = userSettings.mScreenResolution.x;
        mConsoleRect.h = (UI_CONSOLE_NUM_TEXTLINES + 1) * mConsoleFont->GetLineHeight();
    }
    return true;
}

void ConsoleScreenView::Cleanup()
{
    UiView::Cleanup();

    mHistoryTextBatch.clear();
}

void ConsoleScreenView::RenderFrame(UiRenderContext& renderContext)
{
    // animate with transform
    if (mShowStatus != CurrentShowStatus_Open)
    {
        glm::vec3 translation { 0.0f, (mFadeProgress * mConsoleRect.h) - mConsoleRect.h, 0.0f };
        glm::mat4 translation_matrix = glm::translate(translation);
        renderContext.SetTransform(&translation_matrix);
    }

    renderContext.FillRect(mConsoleRect, MAKE_RGBA(28, 28, 28, 190));
    renderContext.DrawTextQuads(mConsoleFont, mHistoryTextBatch);

    Rect2D frameRect = mConsoleRect;
    frameRect.y -= 10;
    frameRect.h += 10;
    renderContext.DrawRect(frameRect, MAKE_RGBA(176, 163, 95, 255));

    renderContext.SetTransform(nullptr);
}

void ConsoleScreenView::UpdateFrame(float deltaTime)
{
    if (mShowStatus == CurrentShowStatus_FadeIn)
    {
        mFadeProgress += UI_CONSOLE_FADE_SPEED * deltaTime;
        if (mFadeProgress >= 1.0f)
        {
            mFadeProgress = 1.0f;
            mShowStatus = CurrentShowStatus_Open;
        }
        return;
    }

    if (mShowStatus == CurrentShowStatus_FadeOut)
    {
        mFadeProgress -= UI_CONSOLE_FADE_SPEED * deltaTime;
        if (mFadeProgress GetLineHeight();
        if (mConsoleScroll)
        {
            positiony = (UI_CONSOLE_NUM_TEXTLINES - iline - 2) * mConsoleFont->GetLineHeight();
        }
        mConsoleFont->BuildTextMesh(rec.mMessage, Point2D{ UI_CONSOLE_X_OFFSET, positiony }, textColor, mBufferTextBatch);

        // combine batch
        mHistoryTextBatch.insert(mHistoryTextBatch.end(), 
            mBufferTextBatch.begin(), 
            mBufferTextBatch.end());
        mBufferTextBatch.clear();
    }

    // add line separator
    if (mConsoleScroll)
    {
        int positiony = (UI_CONSOLE_NUM_TEXTLINES - 1) * mConsoleFont->GetLineHeight();
        mConsoleFont->BuildTextMesh(CONSOLE_SEPARATOR_STR, Point2D{ UI_CONSOLE_X_OFFSET, positiony }, COLOR_WHITE, mBufferTextBatch);

        // combine batch
        mHistoryTextBatch.insert(mHistoryTextBatch.end(), 
            mBufferTextBatch.begin(), 
            mBufferTextBatch.end());
        mBufferTextBatch.clear();
    }
}