#include "common.h"

HANDLE CDropbox::CreateProtoServiceFunctionObj(const char *szService, MIRANDASERVICEOBJ serviceProc, void *obj)
{
	char str[MAXMODULELABELLENGTH];
	mir_snprintf(str, sizeof(str), "%s%s", MODULE, szService);
	str[MAXMODULELABELLENGTH - 1] = 0;
	return CreateServiceFunctionObj(str, serviceProc, obj);
}

INT_PTR CDropbox::ProtoGetCaps(WPARAM wParam, LPARAM)
{
	switch(wParam)
	{
	case PFLAGNUM_1:
		return PF1_IM | PF1_FILESEND;
	case PFLAGNUM_2:
		return PF2_ONLINE;
	case PFLAGNUM_4:
		return PF4_OFFLINEFILES;
	}

	return 0;
}

INT_PTR CDropbox::ProtoSendFile(void *obj, WPARAM, LPARAM lParam)
{
	CDropbox *instance = (CDropbox*)obj;

	if (!instance->HasAccessToken())
		return ACKRESULT_FAILED;

	CCSDATA *pccsd = (CCSDATA*)lParam;

	FileTransferParam *ftp = new FileTransferParam();
	ftp->pfts.flags |= PFTS_SENDING;
	ftp->pfts.hContact = pccsd->hContact;
	ftp->hContact = (instance->hTransferContact) ? instance->hTransferContact : pccsd->hContact;
	instance->hTransferContact = 0;

	wchar_t **paths = (wchar_t**)pccsd->lParam;

	for (int i = 0; paths[i]; i++)
	{
		if (PathIsDirectory(paths[i]))
			ftp->totalFolders++;
		else
			ftp->pfts.totalFiles++;
	}

	ftp->pwszFolders = (wchar_t**)mir_alloc(sizeof(wchar_t*) * (ftp->totalFolders + 1));
	ftp->pwszFolders[ftp->totalFolders] = NULL;

	ftp->pfts.pwszFiles = (wchar_t**)mir_alloc(sizeof(wchar_t*) * (ftp->pfts.totalFiles + 1));
	ftp->pfts.pwszFiles[ftp->pfts.totalFiles] = NULL;

	for (int i = 0, j = 0, k = 0; paths[i]; i++)
	{
		if (PathIsDirectory(paths[i]))
		{
			if (!ftp->relativePathStart)
			{
				wchar_t *rootFolder = paths[j];
				wchar_t *relativePath = wcsrchr(rootFolder, '\\') + 1;
				ftp->relativePathStart = relativePath - rootFolder;
			}

			ftp->pwszFolders[j] = mir_wstrdup(&paths[i][ftp->relativePathStart]);

			j++;
		}
		else
		{
			if (!ftp->pfts.wszWorkingDir)
			{
				wchar_t *path = paths[j];
				int length = wcsrchr(path, '\\') - path;
				ftp->pfts.wszWorkingDir = (wchar_t*)mir_alloc(sizeof(wchar_t) * (length + 1));
				mir_tstrncpy(ftp->pfts.wszWorkingDir, paths[j], length + 1);
				ftp->pfts.wszWorkingDir[length] = '\0';
				
			}

			ftp->pfts.pwszFiles[k] = mir_wstrdup(paths[i]);

			FILE *file = _wfopen(paths[i], L"rb");
			if (file != NULL)
			{
				fseek(file, 0, SEEK_END);
				ftp->pfts.totalBytes += ftell(file);
				fseek(file, 0, SEEK_SET);
				fclose(file);
			}
			k++;
		}
	}

	ULONG fileId = InterlockedIncrement(&instance->hFileProcess);
	ftp->hProcess = (HANDLE)fileId;

	mir_forkthreadowner(CDropbox::SendFilesAndReportAsync, obj, ftp, 0);

	return fileId;
}

INT_PTR CDropbox::ProtoSendMessage(void *obj, WPARAM, LPARAM lParam)
{
	CDropbox *instance = (CDropbox*)obj;

	if (!instance->HasAccessToken())
		return ACKRESULT_FAILED;

	CCSDATA *pccsd = (CCSDATA*)lParam;

	char *message = (char*)pccsd->lParam;

	DBEVENTINFO dbei = { sizeof(dbei) };
	dbei.szModule = MODULE;
	dbei.timestamp = time(NULL);
	dbei.eventType = EVENTTYPE_MESSAGE;
	dbei.cbBlob = strlen(message);
	dbei.pBlob = (PBYTE)message;
	dbei.flags = DBEF_SENT | DBEF_READ | DBEF_UTF;
	db_event_add(pccsd->hContact, &dbei);

	char help[1024];

	if (message[0] && message[0] == '/')
	{
		// parse commands
		char *sep = strchr(message, ' ');
		int len = strlen(message) - (sep ? strlen(sep) : 0) - 1;
		ptrA cmd((char*)mir_alloc(len + 1));
		strncpy(cmd, message + 1, len);
		cmd[len] = 0;
		if (instance->commands.find((char*)cmd) != instance->commands.end())
		{
			ULONG messageId = InterlockedIncrement(&instance->hMessageProcess);

			CommandParam *param = new CommandParam();
			param->instance = instance;
			param->hContact = pccsd->hContact;
			param->hProcess = (HANDLE)messageId;
			param->data = (sep ? sep + 1 : NULL);

			mir_forkthread(instance->commands[(char*)cmd], param);

			return messageId;
		}
		else
		{
			mir_snprintf(
				help,
				SIZEOF(help),
				Translate("Unknown command \"%s\".\nUse \"/help\" for more info."),
				message);

			CallContactService(instance->GetDefaultContact(), PSR_MESSAGE, 0, (LPARAM)help);

			return 0;
		}
	}

	mir_snprintf(
		help,
		SIZEOF(help),
		Translate("\"%s\" is not valid.\nUse \"/help\" for more info."),
		message);

	CallContactService(instance->GetDefaultContact(), PSR_MESSAGE, 0, (LPARAM)help);

	return 0;
}

INT_PTR CDropbox::ProtoReceiveMessage(void *obj, WPARAM, LPARAM lParam)
{
	CDropbox *instance = (CDropbox*)obj;

	CCSDATA *pccsd = (CCSDATA*)lParam;

	char *message = (char*)pccsd->lParam;

	DBEVENTINFO dbei = { sizeof(dbei) };
	dbei.szModule = MODULE;
	dbei.timestamp = time(NULL);
	dbei.eventType = EVENTTYPE_MESSAGE;
	dbei.cbBlob = strlen(message);
	dbei.pBlob = (PBYTE)message;
	db_event_add(pccsd->hContact, &dbei);

	return 0;
}

INT_PTR CDropbox::SendFileToDropbox(void *obj, WPARAM hContact, LPARAM lParam)
{
	CDropbox *instance = (CDropbox*)obj;

	if (!instance->HasAccessToken())
		return 0;

	if (hContact == NULL)
		hContact = instance->GetDefaultContact();

	wchar_t *filePath = (wchar_t*)lParam;

	FileTransferParam *ftp = new FileTransferParam();
	ftp->pfts.flags |= PFTS_SENDING;
	ftp->pfts.hContact = hContact;
	ftp->pfts.totalFiles = 1;
	ftp->hContact = (instance->hTransferContact) ? instance->hTransferContact : hContact;
	instance->hTransferContact = 0;

	int length = wcsrchr(filePath, '\\') - filePath;
	ftp->pfts.wszWorkingDir = (wchar_t*)mir_alloc(sizeof(wchar_t) * (length + 1));
	mir_tstrncpy(ftp->pfts.wszWorkingDir, filePath, length + 1);
	ftp->pfts.wszWorkingDir[length] = '\0';

	ftp->pfts.pwszFiles = (wchar_t**)mir_alloc(sizeof(wchar_t*) * (ftp->pfts.totalFiles + 1));
	ftp->pfts.pwszFiles[0] = mir_wstrdup(filePath);
	ftp->pfts.pwszFiles[ftp->pfts.totalFiles] = NULL;

	ULONG fileId = InterlockedIncrement(&instance->hFileProcess);
	ftp->hProcess = (HANDLE)fileId;

	mir_forkthreadowner(CDropbox::SendFilesAndEventAsync, obj, ftp, 0);

	return fileId;
}