reverb and duck loading. cleaned up asset loading with custom csv parser

src/ObjCommon/Csv/ParsedCsv.cpp

@@ -0,0 +1,65 @@
+#include "Csv/ParsedCsv.h"
+
+ParsedCsvRow::ParsedCsvRow(std::unordered_map<std::string, size_t>& headers, std::vector<std::string>& row)
+    : headers(headers),
+      values(row)
+{
+}
+
+const std::string& ParsedCsvRow::GetValue(const std::string& header, bool required) const
+{
+    if (this->headers.find(header) == this->headers.end())
+    {
+        if (required)
+            std::cerr << "ERROR: Required column \"" << header << "\" was not found";
+        else
+            std::cerr << "WARNING: Expected column \"" << header << "\" was not found";
+        return nullptr;
+    }
+
+    auto& value = this->values.at(this->headers[header]);
+    if (required && value.empty())
+    {
+        std::cerr << "ERROR: Required column \"" << header << "\" does not have a value";
+        return nullptr;
+    }
+
+    return value;
+}
+
+ParsedCsv::ParsedCsv(const CsvInputStream& inputStream, bool hasHeaders)
+{
+    std::vector<std::vector<std::string>> csvLines;
+    std::vector<std::string> currentLine;
+
+    while (inputStream.NextRow(currentLine))
+    {
+        csvLines.emplace_back(std::move(currentLine));
+        currentLine = std::vector<std::string>();
+    }
+
+    if (hasHeaders)
+    {
+        auto& headersRow = csvLines[0];
+        for (auto i = 0u; i < headersRow.size(); i++)
+        {
+            this->headers[headersRow[i]] = i;
+        }
+    }
+
+    for (auto i = hasHeaders ? 1u : 0u; i < csvLines.size(); i++)
+    {
+        auto& rowValues = csvLines[i];
+        this->rows.push_back(ParsedCsvRow(this->headers, rowValues));
+    }
+}
+
+size_t ParsedCsv::Size() const
+{
+    return this->rows.size();
+}
+
+ParsedCsvRow ParsedCsv::operator[](size_t index) const
+{
+    return this->rows.at(index);
+}

src/ObjCommon/Csv/ParsedCsv.h

@@ -0,0 +1,41 @@
+#pragma once
+#include <Csv/CsvStream.h>
+#include <sstream>
+#include <unordered_map>
+
+class ParsedCsvRow
+{
+    std::unordered_map<std::string, size_t>& headers;
+    std::vector<std::string> values;
+
+public:
+    explicit ParsedCsvRow(std::unordered_map<std::string, size_t>& headers, std::vector<std::string>& row);
+    const std::string& GetValue(const std::string& header, bool required = false) const;
+    
+    template<typename T> T GetValueAs(const std::string& header, bool required = false) const
+    {
+        const auto& value = this->GetValue(header, required);
+        if (!value.empty())
+        {
+            std::istringstream ss(value);
+            T out{};
+            ss >> out;
+            return out;
+        }
+
+        return {};
+    }
+};
+
+class ParsedCsv
+{
+    std::unordered_map<std::string, size_t> headers;
+    std::vector<ParsedCsvRow> rows;
+
+public:
+    explicit ParsedCsv(const CsvInputStream& inputStream, bool hasHeaders = true);
+    
+    size_t Size() const;
+
+    ParsedCsvRow operator[](size_t index) const;
+};