#include <climits>
#include <cstdio>
#include <cstring>
#include <string>
#include <vector>
#include <set>
#include <unordered_map>
#include <algorithm>
#include <mutex>
#include <sqlite3.h>
#include <node.h>
#include <node_object_wrap.h>
#include <node_buffer.h>

struct Addon;
class Database;
class Statement;
class StatementIterator;
class Backup;

#include "util/macros.cpp"
#include "util/helpers.cpp"
#include "util/constants.cpp"
#include "util/bind-map.cpp"
#include "util/data-converter.cpp"
#include "util/data.cpp"
#if defined(NODE_MODULE_VERSION) && NODE_MODULE_VERSION >= 127
#include "util/row-builder.cpp"
#endif

#include "objects/backup.hpp"
#include "objects/statement.hpp"
#include "objects/database.hpp"
#include "addon.cpp"
#include "objects/statement-iterator.hpp"

#include "util/query-macros.cpp"
#include "util/custom-function.cpp"
#include "util/custom-aggregate.cpp"
#include "util/custom-table.cpp"
#include "util/binder.cpp"

#include "objects/backup.cpp"
#include "objects/statement.cpp"
#include "objects/database.cpp"
#include "objects/statement-iterator.cpp"
#include "util/unicode_case.cpp"

NODE_MODULE_INIT(/* exports, context */) {
    #if defined(NODE_MODULE_VERSION) && NODE_MODULE_VERSION >= 140
    // Use Isolate::GetCurrent as stated in deprecation message within v8_context.h 13.9.72320122
	v8::Isolate* isolate = v8::Isolate::GetCurrent();
	#else
	v8::Isolate* isolate = context->GetIsolate();
	#endif
	v8::HandleScope scope(isolate);
	Addon::ConfigureURI();

	// Register Unicode-aware lower()/upper() on every connection (replaces ICU).
	// sqlite3_auto_extension is process-global, so guard against repeated
	// NODE_MODULE_INIT calls (e.g. worker threads) registering it more than once.
	static std::once_flag unicode_case_once;
	std::call_once(unicode_case_once, []() {
		sqlite3_auto_extension((void (*)(void))zeroRegisterUnicodeCase);
	});

	// Initialize addon instance.
	Addon* addon = new Addon(isolate);
	v8::Local<v8::External> data = v8::External::New(isolate, addon);
	node::AddEnvironmentCleanupHook(isolate, Addon::Cleanup, addon);

	// Create and export native-backed classes and functions.
	exports->Set(context, InternalizedFromLatin1(isolate, "Database"), Database::Init(isolate, data)).FromJust();
	exports->Set(context, InternalizedFromLatin1(isolate, "Statement"), Statement::Init(isolate, data)).FromJust();
	exports->Set(context, InternalizedFromLatin1(isolate, "StatementIterator"), StatementIterator::Init(isolate, data)).FromJust();
	exports->Set(context, InternalizedFromLatin1(isolate, "Backup"), Backup::Init(isolate, data)).FromJust();
	exports->Set(context, InternalizedFromLatin1(isolate, "setErrorConstructor"), v8::FunctionTemplate::New(isolate, Addon::JS_setErrorConstructor, data)->GetFunction(context).ToLocalChecked()).FromJust();

  // Export SQLITE_SCANSTAT_* constants
	exports->Set(context, InternalizedFromLatin1(isolate, "SQLITE_SCANSTAT_NLOOP"), v8::Int32::New(isolate, SQLITE_SCANSTAT_NLOOP)).FromJust();
	exports->Set(context, InternalizedFromLatin1(isolate, "SQLITE_SCANSTAT_NVISIT"), v8::Int32::New(isolate, SQLITE_SCANSTAT_NVISIT)).FromJust();
	exports->Set(context, InternalizedFromLatin1(isolate, "SQLITE_SCANSTAT_EST"), v8::Int32::New(isolate, SQLITE_SCANSTAT_EST)).FromJust();
	exports->Set(context, InternalizedFromLatin1(isolate, "SQLITE_SCANSTAT_NAME"), v8::Int32::New(isolate, SQLITE_SCANSTAT_NAME)).FromJust();
	exports->Set(context, InternalizedFromLatin1(isolate, "SQLITE_SCANSTAT_EXPLAIN"), v8::Int32::New(isolate, SQLITE_SCANSTAT_EXPLAIN)).FromJust();
	exports->Set(context, InternalizedFromLatin1(isolate, "SQLITE_SCANSTAT_SELECTID"), v8::Int32::New(isolate, SQLITE_SCANSTAT_SELECTID)).FromJust();
	exports->Set(context, InternalizedFromLatin1(isolate, "SQLITE_SCANSTAT_PARENTID"), v8::Int32::New(isolate, SQLITE_SCANSTAT_PARENTID)).FromJust();
	exports->Set(context, InternalizedFromLatin1(isolate, "SQLITE_SCANSTAT_NCYCLE"), v8::Int32::New(isolate, SQLITE_SCANSTAT_NCYCLE)).FromJust();
	exports->Set(context, InternalizedFromLatin1(isolate, "SQLITE_SCANSTAT_COMPLEX"), v8::Int32::New(isolate, SQLITE_SCANSTAT_COMPLEX)).FromJust();

	// Store addon instance data.
	addon->Statement.Reset(isolate, exports->Get(context, InternalizedFromLatin1(isolate, "Statement")).ToLocalChecked().As<v8::Function>());
	addon->StatementIterator.Reset(isolate, exports->Get(context, InternalizedFromLatin1(isolate, "StatementIterator")).ToLocalChecked().As<v8::Function>());
	addon->Backup.Reset(isolate, exports->Get(context, InternalizedFromLatin1(isolate, "Backup")).ToLocalChecked().As<v8::Function>());
}