#include <sys/mount.h>
#include <unistd.h>
#include <node.h>

namespace mountNode {
    void nodemount(const v8::FunctionCallbackInfo<v8::Value>& args) {
        v8::Isolate* isolate = args.GetIsolate();

        if (!args[0]->IsString()) {
            isolate->ThrowException(v8::Exception::TypeError(
                v8::String::NewFromUtf8(isolate, "First argument must be a string pointing to a device").ToLocalChecked()));
            return;
        }

        if (!args[1]->IsString()) {
            isolate->ThrowException(v8::Exception::TypeError(
                v8::String::NewFromUtf8(isolate, "Argument must be a string pointing to a folder").ToLocalChecked()));
            return;
        }

        if (!args[2]->IsString()) {
            isolate->ThrowException(v8::Exception::TypeError(
                v8::String::NewFromUtf8(isolate, "Argument must be a filesystem name").ToLocalChecked()));
            return;
        }

        if (!args[3]->IsNumber()) {
            isolate->ThrowException(v8::Exception::TypeError(
                v8::String::NewFromUtf8(isolate, "Argument must be a number made from the mount flags").ToLocalChecked()));
            return;
        }

        if (!args[4]->IsString()) {
            isolate->ThrowException(v8::Exception::TypeError(
                v8::String::NewFromUtf8(isolate, "Argument must be a string").ToLocalChecked()));
            return;
        }

        v8::String::Utf8Value devpathV8(isolate, args[0]);
        std::string devpath(*devpathV8);

        v8::String::Utf8Value mountPointV8(isolate, args[1]);
        std::string mountPoint(*mountPointV8);

        v8::String::Utf8Value fsTypeV8(isolate, args[2]);
        std::string fsType(*fsTypeV8);

        unsigned long rwFlags = args[3].As<v8::Number>()->Value();

        //comma separated parameters passed directly into the fs driver
        v8::String::Utf8Value fsFlagsV8(isolate, args[4]);
        std::string fsFlags(*fsFlagsV8);

        const int returnValue = mount(devpath.c_str(), mountPoint.c_str(), fsType.c_str(), rwFlags, fsFlags.c_str());
        args.GetReturnValue().Set(returnValue);
    }


    void Initialize(v8::Local<v8::Object> exports) {
        NODE_SET_METHOD(exports, "mount", nodemount);
    }

    NODE_MODULE(mount_api, Initialize)
}