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#include "UI.hpp"
#include "Model/Workflow/Nodes/DocumentNodes.hpp"
#include "Model/Workflow/Nodes/NumericNodes.hpp"
#include "Model/Workflow/Nodes/TextNodes.hpp"
#include "Model/Workflow/Nodes/UserInputNodes.hpp"
#include "Model/Workflow/Workflow.hpp"
#include "UI/Localization.hpp"
#include "Utils/Macros.hpp"
#include <imgui.h>
#include <imgui_node_editor.h>
#include <memory>
#include <span>
#include <vector>
namespace ImNodes = ax::NodeEditor;
namespace {
class WorkflowCreationMenu
{
private:
using WorkflowNodeConstructor = std::unique_ptr<WorkflowNode> (*)();
enum Category
{
NumericCategory,
TextCategory,
DocumentsCategory,
UserInputCategory,
SystemInputCategory,
OutputCategory,
};
struct Candidate
{
WorkflowNodeConstructor Constructor;
std::string Name;
Category Category;
};
std::vector<Candidate> mCandidates;
#define SUB_RANGE_ACCESS(Type, AccessorName, storage, begin, nextBegin) \
std::span<Type> AccessorName() \
{ \
return { &storage[begin], (size_t)(nextBegin - begin) }; \
}
int mTextOffset;
int mDocumentOffset;
int mUserInputOffset;
int mSystemInputNodes;
int mOutputOffset;
SUB_RANGE_ACCESS(Candidate, GetNumericNodes, mCandidates, 0, mTextOffset);
SUB_RANGE_ACCESS(Candidate, GetTextNodes, mCandidates, mTextOffset, mDocumentOffset);
SUB_RANGE_ACCESS(Candidate, GetDocumentNodes, mCandidates, mDocumentOffset, mUserInputOffset);
SUB_RANGE_ACCESS(Candidate, GetUserInputNodes, mCandidates, mUserInputOffset, mSystemInputNodes);
SUB_RANGE_ACCESS(Candidate, GetSystemInputNodes, mCandidates, mSystemInputNodes, mOutputOffset);
SUB_RANGE_ACCESS(Candidate, GetOutputNodes, mCandidates, mOutputOffset, mCandidates.size());
#undef SUB_RANGE_ACCESS
public:
WorkflowCreationMenu()
{
SetupCandidates();
}
private:
void SetupCandidates()
{
// Numeric nodes offset start at 0
mCandidates.push_back(Candidate{
.Constructor = []() -> std::unique_ptr<WorkflowNode> { return std::make_unique<NumericOperationNode>(NumericOperationNode::Addition); },
.Name = "Add",
.Category = NumericCategory,
});
mCandidates.push_back(Candidate{
.Constructor = []() -> std::unique_ptr<WorkflowNode> { return std::make_unique<NumericOperationNode>(NumericOperationNode::Subtraction); },
.Name = "Subtract",
.Category = NumericCategory,
});
mCandidates.push_back(Candidate{
.Constructor = []() -> std::unique_ptr<WorkflowNode> { return std::make_unique<NumericOperationNode>(NumericOperationNode::Multiplication); },
.Name = "Multiply",
.Category = NumericCategory,
});
mCandidates.push_back(Candidate{
.Constructor = []() -> std::unique_ptr<WorkflowNode> { return std::make_unique<NumericOperationNode>(NumericOperationNode::Division); },
.Name = "Divide",
.Category = NumericCategory,
});
mCandidates.push_back(Candidate{
.Constructor = []() -> std::unique_ptr<WorkflowNode> { return std::make_unique<NumericExpressionNode>(); },
.Name = "Evaluate expression",
.Category = NumericCategory,
});
mTextOffset = mCandidates.size();
mCandidates.push_back(Candidate{
.Constructor = []() -> std::unique_ptr<WorkflowNode> { return std::make_unique<TextFormatterNode>(); },
.Name = "Fill template text",
.Category = TextCategory,
});
mDocumentOffset = mCandidates.size();
mCandidates.push_back(Candidate{
.Constructor = []() -> std::unique_ptr<WorkflowNode> { return std::make_unique<DocumentTemplateExpansionNode>(); },
.Name = "Document template",
.Category = Category::DocumentsCategory,
});
/* Inputs */
mUserInputOffset = mCandidates.size();
mCandidates.push_back(Candidate{
.Constructor = []() -> std::unique_ptr<WorkflowNode> { return std::make_unique<FormInputNode>(); },
.Name = "Input: form",
.Category = Category::UserInputCategory,
});
mCandidates.push_back(Candidate{
.Constructor = []() -> std::unique_ptr<WorkflowNode> { return std::make_unique<DatabaseRowsInputNode>(); },
.Name = "Input: database rows",
.Category = Category::UserInputCategory,
});
mSystemInputNodes = mCandidates.size();
/* Outputs */
mOutputOffset = mCandidates.size();
}
};
class WorkflowUI
{
private:
Workflow* mWorkflow;
ImNodes::EditorContext* mContext;
public:
WorkflowUI()
{
mContext = ImNodes::CreateEditor();
}
~WorkflowUI()
{
ImNodes::DestroyEditor(mContext);
}
void Draw()
{
ImNodes::SetCurrentEditor(mContext);
ImNodes::Begin("");
for (auto& node : mWorkflow->GetNodes()) {
if (!node) continue;
ImNodes::BeginNode(node->GetId());
node->Draw();
ImNodes::EndNode();
}
for (auto& conn : mWorkflow->GetConnections()) {
if (!conn.IsValid()) continue;
// TODO create link
}
ImNodes::End();
}
};
} // namespace
void UI::WorkflowsTab()
{
static std::unique_ptr<WorkflowUI> openWorkflow;
// TODO
}
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