////////////////////////////////////////////////////////////////////////////
//
// Copyright 2015 Realm Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
////////////////////////////////////////////////////////////////////////////

#import "RealmJS.h"
#import "RJSRealm.hpp"
#import "RJSObject.hpp"
#import "RJSUtil.hpp"
#import "RJSSchema.hpp"

#include "shared_realm.hpp"

JSValueRef RJSTypeGet(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName, JSValueRef* exception) {
    return RJSValueForString(ctx, RJSTypeGet(RJSStringForJSString(propertyName)));
}

JSClassRef RJSRealmTypeClass() {
    JSClassDefinition realmTypesDefinition = kJSClassDefinitionEmpty;
    realmTypesDefinition.className = "PropTypes";
    JSStaticValue types[] = {
        { "BOOL",   RJSTypeGet, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "INT",    RJSTypeGet, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "FLOAT",  RJSTypeGet, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "DOUBLE", RJSTypeGet, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "STRING", RJSTypeGet, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "DATE",   RJSTypeGet, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "DATA",   RJSTypeGet, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "OBJECT", RJSTypeGet, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "LIST",  RJSTypeGet, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { NULL, NULL, NULL, 0 }
    };
    realmTypesDefinition.staticValues = types;
    return JSClassCreate(&realmTypesDefinition);
}

NSString *RealmFileDirectory() {
#if TARGET_OS_IPHONE
    return NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0];
#else
    NSString *path = NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES)[0];
    return [path stringByAppendingPathComponent:[[[NSBundle mainBundle] executablePath] lastPathComponent]];
#endif
}

static JSValueRef ClearTestState(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef *exception) {
    [RealmJS clearTestState];
    return NULL;
}

@implementation RealmJS

+ (void)initializeContext:(JSContextRef)ctx {
    JSValueRef exception = NULL;
    JSObjectRef globalObject = JSContextGetGlobalObject(ctx);

    JSObjectRef globalRealmObject = RJSRegisterGlobalClass(ctx, globalObject, RJSRealmConstructorClass(), "Realm", &exception);
    JSObjectRef typesObject = JSObjectMake(ctx, RJSRealmTypeClass(), NULL);
    JSStringRef typeString = JSStringCreateWithUTF8CString("Types");
    JSPropertyAttributes attributes = kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontEnum | kJSPropertyAttributeDontDelete;
    JSObjectSetProperty(ctx, globalRealmObject, typeString, typesObject, attributes, &exception);
    JSStringRelease(typeString);

    JSStringRef clearTestStateString = JSStringCreateWithUTF8CString("clearTestState");
    JSObjectRef clearTestStateFunction = JSObjectMakeFunctionWithCallback(ctx, clearTestStateString, ClearTestState);
    JSObjectSetProperty(ctx, globalRealmObject, clearTestStateString, clearTestStateFunction, attributes, &exception);
    JSStringRelease(clearTestStateString);

    assert(!exception);
}

+ (void)clearTestState {
    realm::Realm::s_global_cache.invalidate_all();
    realm::Realm::s_global_cache.clear();

    NSFileManager *manager = [NSFileManager defaultManager];
    NSString *fileDir = RealmFileDirectory();
    for (NSString *path in [manager enumeratorAtPath:fileDir]) {
        if (![manager removeItemAtPath:[fileDir stringByAppendingPathComponent:path] error:nil]) {
            @throw [NSException exceptionWithName:@"removeItemAtPath error" reason:@"Failed to delete file" userInfo:nil];
        }
    }
}

@end