#include "my_imgui_internal_widgets.h"

#include "imgui.h"
#ifndef IMGUI_DEFINE_MATH_OPERATORS
#define IMGUI_DEFINE_MATH_OPERATORS
#endif
#include "imgui_internal.h"

// A modded version of ScalarSlider allowing for the minimum and maximum parts
// of the slider to be draggable by two other buttons. p_data is from range -1
// to 1, and s_min and max are from 0-1.
#if 0
// bool ImGui::SliderLevels(const char* label, ImGuiDataType data_type, void* v, int components, const void* v_min, const void* v_max, const char* format, ImGuiSliderFlags flags)
bool ImGui::SliderLevels(const char* label, void* p_data, const void* s_min, const void* s_max)
{
    ImGuiWindow* window = GetCurrentWindow();
    if (window->SkipItems)
        return false;

    const float MidMin = -1;
    const float MidMax = 1;
    const void* mid_min = &SliderMin;
    const void* mid_max = &SliderMax;
    ImGuiDataType data_type = ImGuiDataType_Float;
    const char *format = "%f";

    ImVec2 picker_pos = window->DC.CursorPos;

    ImGuiContext& g = *GImGui;
    bool value_changed = false;
    BeginGroup();
    PushID(label);
    value_changed |= SliderScalar("", data_type, p_data, mid_min, mid_max, format, ImGuiSliderFlags_Logarithmic);
    SetCursorScreenPos(ImVec2(picker_pos.x + 20.0f, picker_pos.y));
    // PushItemWidth();
    value_changed |= SliderScalar("", data_type, p_data, p_min, p_max, format, ImGuiSliderFlags_Logarithmic);
    // PushMultiItemsWidths(components, CalcItemWidth());
    // size_t type_size = GDataTypeInfo[data_type].Size;
    // for (int i = 0; i < components; i++)
    // {
    //     PushID(i);
    //     if (i > 0)
    //         SameLine(0, g.Style.ItemInnerSpacing.x);
    //     value_changed |= SliderScalar("", data_type, v, v_min, v_max, format, flags);
    //     PopID();
    //     PopItemWidth();
    //     v = (void*)((char*)v + type_size);
    // }
    PopID();

    EndGroup();
    return value_changed;
}
bool ImGui::SliderLevels(const char* label, void* p_data, void* s_left, void* s_right)
{
    ImGuiSliderFlags flags = ImGuiSliderFlags_NoInput;
    ImGuiWindow* window = GetCurrentWindow();
    if (window->SkipItems)
        return false;

    const float SliderMin = -1;
    const float SliderMax = 1;
    const float OtherMin = 0;
    const float OtherMax = 1;
    const void* p_min = &SliderMin;
    const void* p_max = &SliderMax;
    const void* o_min = &OtherMin;
    const void* o_max = &OtherMax;
    ImGuiDataType data_type = ImGuiDataType_Float;
    const char *format = "%f";

    ImGuiContext& g = *GImGui;
    const ImGuiStyle& style = g.Style;
    const ImGuiID id = window->GetID(label);
    const ImGuiID id_mid = window->GetID("asdasbdsgd");
    const ImGuiID id_L = window->GetID("ppasd");
    const ImGuiID id_R = window->GetID("adsafb");
    const float w = CalcItemWidth();

    const ImVec2 label_size = CalcTextSize(label, NULL, true);
    const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y * 2.0f));
    const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));

    // const bool temp_input_allowed = (flags & ImGuiSliderFlags_NoInput) == 0;
    // ItemSize(total_bb, style.FramePadding.y);
    // if (!ItemAdd(total_bb, id, &frame_bb, temp_input_allowed ? ImGuiItemFlags_Inputable : 0))
    //     return false;

    const bool hovered = ItemHoverable(frame_bb, id_L);

    // NOTE(fox): Making bogus calls here to get these positions so we can only activate the one we want - replace with the lower-level call.
    // const ImGuiID id_bogus = window->GetID("ppp");
    // ImRect test_left;
    // SliderBehavior(frame_bb, id_bogus, data_type, s_left, o_min, o_max, format, ImGuiSliderFlags_NoInput, &test_left);
    // ImRect test_right;
    // SliderBehavior(frame_bb, id_bogus, data_type, s_right, o_min, o_max, format, ImGuiSliderFlags_NoInput, &test_right);

    const bool input_requested_by_tabbing = (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_FocusedByTabbing) != 0;
    const bool clicked = (hovered && g.IO.MouseClicked[0]);
    const bool make_active = (input_requested_by_tabbing || clicked || g.NavActivateId == id_L || g.NavActivateInputId == id_L);
    if (make_active)
    {
        SetActiveID(id_L, window);
        SetFocusID(id_L, window);
        FocusWindow(window);
        g.ActiveIdUsingNavDirMask |= (1 << ImGuiDir_Left) | (1 << ImGuiDir_Right);
    }
    /*
    else if (make_active && g.IO.MousePos.x > test_right.Min.x) {
        SetActiveID(id_R, window);
        SetFocusID(id_R, window);
        FocusWindow(window);
        g.ActiveIdUsingNavDirMask |= (1 << ImGuiDir_Left) | (1 << ImGuiDir_Right);
    } else if (make_active) {
        SetActiveID(id_mid, window);
        SetFocusID(id_mid, window);
        FocusWindow(window);
        g.ActiveIdUsingNavDirMask |= (1 << ImGuiDir_Left) | (1 << ImGuiDir_Right);
    }
    */

    // Draw frame
    const ImU32 frame_col = GetColorU32(g.ActiveId == id ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg);
    RenderNavHighlight(frame_bb, id);
    RenderFrame(frame_bb.Min, frame_bb.Max, frame_col, true, g.Style.FrameRounding);


    // Slider behavior
    ImRect L_grab_bb;
    const bool value_changed = SliderBehavior(frame_bb, id_L, data_type, s_left, o_min, o_max, format, ImGuiSliderFlags_NoInput, &L_grab_bb);
    if (value_changed)
        MarkItemEdited(id_L);

    // Render grab
    if (L_grab_bb.Max.x > L_grab_bb.Min.x)
        window->DrawList->AddRectFilled(L_grab_bb.Min, L_grab_bb.Max, GetColorU32(g.ActiveId == id_L ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);

#if 0
    // Slider behavior
    ImRect R_grab_bb;
    const bool value_changed2 = SliderBehavior(frame_bb, id_R, data_type, s_right, o_min, o_max, format, ImGuiSliderFlags_NoInput, &R_grab_bb);
    if (value_changed2)
        MarkItemEdited(id_R);

    // Render grab
    if (R_grab_bb.Max.x > R_grab_bb.Min.x)
        window->DrawList->AddRectFilled(R_grab_bb.Min, R_grab_bb.Max, GetColorU32(g.ActiveId == id_R ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);

    const ImRect range_bb(ImVec2(L_grab_bb.Min.x, frame_bb.Min.y), ImVec2(R_grab_bb.Min.x, frame_bb.Max.y));

    // Slider behavior
    ImRect grab_bb_mid;
    const bool value_changed_mid = SliderBehavior(range_bb, id_mid, data_type, p_data, p_min, p_max, format, flags | ImGuiSliderFlags_Logarithmic, &grab_bb_mid);
    // if (value_changed2)
    //     MarkItemEdited(id_bogus);

    ImVec2 asda = ImVec2(0, 5);
    // // Render grab
    if (grab_bb_mid.Max.x > grab_bb_mid.Min.x)
        window->DrawList->AddRectFilled(grab_bb_mid.Min + asda, grab_bb_mid.Max + asda, GetColorU32(g.ActiveId == id_bogus ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);
#endif
    // Display value using user-provided display format so user can add prefix/suffix/decorations to the value.
    char value_buf[64];
    const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_ARRAYSIZE(value_buf), data_type, p_data, format);
    if (g.LogEnabled)
        LogSetNextTextDecoration("{", "}");
    RenderTextClipped(frame_bb.Min, frame_bb.Max, value_buf, value_buf_end, NULL, ImVec2(0.5f, 0.5f));

    if (label_size.x > 0.0f)
        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);

    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
    return value_changed;
}
#else
bool ImGui::SliderLevels(const char* label, void* p_mid, void* p_left, void* p_right)
{
    ImGuiWindow* window = GetCurrentWindow();
    if (window->SkipItems)
        return false;

    const float SliderMin = -1;
    const float SliderMax = 1;
    const float OtherMin = 0;
    const float OtherMax = 1;
    const void* p_min = &SliderMin;
    const void* p_max = &SliderMax;
    const void* o_min = &OtherMin;
    const void* o_max = &OtherMax;
    ImGuiDataType data_type = ImGuiDataType_Float;
    const char *format = "%f";

    ImGuiSliderFlags flags = ImGuiSliderFlags_NoInput;
    ImGuiContext& g = *GImGui;
    const ImGuiStyle& style = g.Style;
    const ImGuiID id = window->GetID(label);
    const ImGuiID idnull = window->GetID("asdas");
    const ImGuiID id_mid = window->GetID("asdasbdsgd");
    const ImGuiID id_L = window->GetID("ppasd");
    const ImGuiID id_R = window->GetID("adsafb");
    const float w = CalcItemWidth();

    const ImVec2 label_size = CalcTextSize(label, NULL, true);
    const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y * 2.0f));
    const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));

    ImRect test_L_bb;
    SliderBehavior(frame_bb, idnull, data_type, p_left, o_min, o_max, format, flags, &test_L_bb);
    ImRect test_R_bb;
    SliderBehavior(frame_bb, idnull, data_type, p_right, o_min, o_max, format, flags, &test_R_bb);

    ItemSize(total_bb, style.FramePadding.y);

    if (!ItemAdd(total_bb, id_L, &frame_bb, 0))
        return false;
    if (!ItemAdd(total_bb, id_R, &frame_bb, 0))
        return false;
    if (!ItemAdd(total_bb, id_mid, &frame_bb, 0))
        return false;

    const bool hovered = ItemHoverable(frame_bb, id);

        const bool input_requested_by_tabbing =  (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_FocusedByTabbing) != 0;
        const bool clicked = (hovered && g.IO.MouseClicked[0]);
        const bool make_active = (input_requested_by_tabbing || clicked || g.NavActivateId == id || g.NavActivateInputId == id);

        if (make_active)
        {
            if (g.IO.MousePos.x < test_L_bb.Max.x) {
                SetActiveID(id_L, window);
                SetFocusID(id_L, window);
            } else if (g.IO.MousePos.x > test_R_bb.Min.x) {
                SetActiveID(id_R, window);
                SetFocusID(id_R, window);
            } else {
                SetActiveID(id_mid, window);
                SetFocusID(id_mid, window);
            }
            FocusWindow(window);
            g.ActiveIdUsingNavDirMask |= (1 << ImGuiDir_Left) | (1 << ImGuiDir_Right);
        }


    // Draw frame
    const ImU32 frame_col = GetColorU32(g.ActiveId == id_L ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg);
    RenderNavHighlight(frame_bb, id_L);
    RenderFrame(frame_bb.Min, frame_bb.Max, frame_col, true, g.Style.FrameRounding);

    // Slider behavior
    ImRect grab_bb;
    const bool value_changed = SliderBehavior(frame_bb, id_L, data_type, p_left, o_min, o_max, format, flags, &grab_bb);
    if (value_changed)
        MarkItemEdited(id_L);

    // Render grab
    if (grab_bb.Max.x > grab_bb.Min.x)
        window->DrawList->AddRectFilled(grab_bb.Min, grab_bb.Max, GetColorU32(g.ActiveId == id_L ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);

    // Slider behavior
    ImRect grab_bb2;
    const bool value_changed2 = SliderBehavior(frame_bb, id_R, data_type, p_right, o_min, o_max, format, flags, &grab_bb2);
    if (value_changed2)
        MarkItemEdited(id_R);

    // Render grab
    if (grab_bb2.Max.x > grab_bb2.Min.x)
        window->DrawList->AddRectFilled(grab_bb2.Min, grab_bb2.Max, GetColorU32(g.ActiveId == id_R ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);

    const ImRect mid_bb(ImVec2(grab_bb.Max.x, frame_bb.Min.y), ImVec2(grab_bb2.Min.x, frame_bb.Max.y));

    // Slider behavior
    ImRect grab_bb3;
    const bool value_changed3 = SliderBehavior(mid_bb, id_mid, data_type, p_mid, p_min, p_max, format, flags, &grab_bb3);
    if (value_changed3)
        MarkItemEdited(id_mid);

    // Render grab
    if (grab_bb3.Max.x > grab_bb3.Min.x)
        window->DrawList->AddRectFilled(grab_bb3.Min, grab_bb3.Max, GetColorU32(g.ActiveId == id_mid ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);

    // Display value using user-provided display format so user can add prefix/suffix/decorations to the value.
    char value_buf[64];
    const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_ARRAYSIZE(value_buf), data_type, p_left, format);
    if (g.LogEnabled)
        LogSetNextTextDecoration("{", "}");
    RenderTextClipped(frame_bb.Min, frame_bb.Max, value_buf, value_buf_end, NULL, ImVec2(0.5f, 0.5f));

    if (label_size.x > 0.0f)
        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);

    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
    return value_changed;
}
#endif