// Copyright 2014 BitPay Inc.

// Distributed under the MIT software license, see the accompanying

// file COPYING or https://opensource.org/licenses/mit-license.php.

#include <univalue.h>

#include <univalue_escapes.h>

#include <memory>

#include <string>

#include <vector>

static std::string json_escape(const std::string& inS)

{

    std::string outS;

    outS.reserve(inS.size() * 2);

    for (unsigned int i = 0; i < inS.size(); i++) {

        unsigned char ch = static_cast<unsigned char>(inS[i]);

        const char *escStr = escapes[ch];

        if (escStr)

            outS += escStr;

        else

            outS += static_cast<char>(ch);

    }

    return outS;

}

// NOLINTNEXTLINE(misc-no-recursion)

std::string UniValue::write(unsigned int prettyIndent,

                            unsigned int indentLevel) const

{

    std::string s;

    s.reserve(1024);

    unsigned int modIndent = indentLevel;

    if (modIndent == 0)

        modIndent = 1;

    switch (typ) {

    case VNULL:

        s += "null";

        break;

    case VOBJ:

        writeObject(prettyIndent, modIndent, s);

        break;

    case VARR:

        writeArray(prettyIndent, modIndent, s);

        break;

    case VSTR:

        s += "\"" + json_escape(val) + "\"";

        break;

    case VNUM:

        s += val;

        break;

    case VBOOL:

        s += (val == "1" ? "true" : "false");

        break;

    }

    return s;

}

static void indentStr(unsigned int prettyIndent, unsigned int indentLevel, std::string& s)

{

    s.append(prettyIndent * indentLevel, ' ');

}

// NOLINTNEXTLINE(misc-no-recursion)

void UniValue::writeArray(unsigned int prettyIndent, unsigned int indentLevel, std::string& s) const

{

    s += "[";

    if (prettyIndent)

        s += "\n";

    for (unsigned int i = 0; i < values.size(); i++) {

        if (prettyIndent)

            indentStr(prettyIndent, indentLevel, s);

        s += values[i].write(prettyIndent, indentLevel + 1);

        if (i != (values.size() - 1)) {

            s += ",";

        }

        if (prettyIndent)

            s += "\n";

    }

    if (prettyIndent)

        indentStr(prettyIndent, indentLevel - 1, s);

    s += "]";

}

// NOLINTNEXTLINE(misc-no-recursion)

void UniValue::writeObject(unsigned int prettyIndent, unsigned int indentLevel, std::string& s) const

{

    s += "{";

    if (prettyIndent)

        s += "\n";

    for (unsigned int i = 0; i < keys.size(); i++) {

        if (prettyIndent)

            indentStr(prettyIndent, indentLevel, s);

        s += "\"" + json_escape(keys[i]) + "\":";

        if (prettyIndent)

            s += " ";

        s += values.at(i).write(prettyIndent, indentLevel + 1);

        if (i != (values.size() - 1))

            s += ",";

        if (prettyIndent)

            s += "\n";

    }

    if (prettyIndent)

        indentStr(prettyIndent, indentLevel - 1, s);

    s += "}";

}