#pragma once
#include <vector>
#include <string>

class FormatVisitor : public BaseVisitor {
 public:
    void Visit(const BaseNode* node) override {
        node->Visit(this);
    }

    void Visit(const ClassDeclarationNode* node) override {
        int64_t pub = node->PublicFields().size();
        int64_t prot = node->ProtectedFields().size();
        int64_t priv = node->PrivateFields().size();

        v.push_back(hot_tubs() + "class " + node->ClassName() + " {");

        if (pub) {
            v.push_back(hot_tubs() + "  public:");
            visiting(node->PublicFields());
            if (prot || priv)
                v.push_back("");
        }

        if (prot) {
            v.push_back(hot_tubs() + "  protected:");
            visiting(node->ProtectedFields());
            if (priv)
                v.push_back("");
        }

        if (priv) {
            v.push_back(hot_tubs() + "  private:");
            visiting(node->PrivateFields());
        }

        v.push_back(hot_tubs() + "};");
    }

    void Visit(const VarDeclarationNode* node) override {
        std::string tmp = node->TypeName() + " " + node->VarName();
        if (var_tmp) {
            v.back() += tmp;
            if (!last)
                v.back() += ", ";
        } else {
            v.push_back(hot_tubs() + tmp + ";");
        }
    }

    void Visit(const MethodDeclarationNode* node) override {
        v.push_back(hot_tubs() + node->ReturnTypeName() + " "
        + node->MethodName() + "(");
        var_tmp = 1;
        visiting(node->Arguments());
        v.back() += ");";
        var_tmp = 0;
    }

    const std::vector<std::string>& GetFormattedCode() const {
        return v;
    }

 private:
    std::vector<std::string> v;

    uint64_t dh = 0;

    std::string hot_tubs() {
        return std::string(dh * 4, ' ');
    }

    bool var_tmp = 0;

    bool last = 0;

    void visiting(std::vector<BaseNode *> vec) {
        dh++;
        for (uint64_t i = 0; i < vec.size(); i++) {
            if (i == vec.size() - 1)
                last = 1;
            vec[i]->Visit(this);
        }
        last = 0;
        dh--;
    }
};