'use strict';

const ffi = require('ffi');
const ref = require('ref');
const electron = require('electron');
const app = electron.app;
const path = require('path');
const isDevEnv = require('../utils/misc.js').isDevEnv;
const isMac = require('../utils/misc.js').isMac;

// ref types
const symLucyIndexer = ref.types.void;
const symLucyIndexerPtr = ref.refType(symLucyIndexer);

// application execution path
const execPath = path.dirname(app.getPath('exe'));

// library path contractor
const winArchPath = process.arch === 'ia32' ? 'library/libsymphonysearch-x86.dll' : 'library/libsymphonysearch-x64.dll';
const rootPath = isMac ? 'library/libsymphonysearch.dylib' : winArchPath;
const productionPath = path.join(execPath, isMac ? '..' : '', rootPath);
const devPath = path.join(__dirname, '..', '..', rootPath);
const libraryPath = isDevEnv ? devPath : productionPath;

/**
 * Initializing the C SymphonySearchEngine library
 * using the node-ffi
 */
let libSymphonySearch = ffi.Library(libraryPath, {
    //init
    'symSE_init': ['void', []],
    'symSE_remove_folder': ['int', ['string']],
    'symSE_ensure_index_exists': ['int', ['string']],
    'symSE_ensure_folder_exists': ['int', ['string']],
    //first time indexing and delta indexing
    'symSE_get_indexer': [symLucyIndexerPtr, ['string']], //will be removed
    'symSE_create_partial_index': ['int', ['string', 'string', 'string']],
    'symSE_merge_partial_index': ['int', ['string', 'string']],
    //real time indexing
    'symSE_index_realtime': ['int', ['string', 'string']],
    'symSE_merge_temp_index': ['int', ['string', 'string']],
    'symSE_clear_temp_index': ['int', ['string']],
    //Search,
    'symSE_search': ['char *', ['string', 'string', 'string', 'string', 'string', 'int', 'int', 'int']],
    //Deletion
    'symSE_delete_messages': ['int', ['string', 'string', 'string', 'string']],
    //Index commit/optimize
    'symSE_commit_index': ['int', [symLucyIndexerPtr, 'int']], //will be removed
    //freePointer
    'symSE_free_results': ['int', ['char *']],

    //Latest messages timestamp
    'symSE_get_last_message_timestamp': ['char *', ['string']]
});

module.exports = {
    symSEInit: libSymphonySearch.symSE_init,
    symSERemoveFolder: libSymphonySearch.symSE_remove_folder,
    symSEEnsureIndexExists: libSymphonySearch.symSE_ensure_index_exists,
    symSEEnsureFolderExists: libSymphonySearch.symSE_ensure_folder_exists,
    symSEGetIndexer: libSymphonySearch.symSE_get_indexer,
    symSECreatePartialIndex: libSymphonySearch.symSE_create_partial_index,
    symSEMergePartialIndex: libSymphonySearch.symSE_merge_partial_index,
    symSEIndexRealTime: libSymphonySearch.symSE_index_realtime,
    symSEMergeTempIndex: libSymphonySearch.symSE_merge_temp_index,
    symSEClearTempIndex: libSymphonySearch.symSE_clear_temp_index,
    symSESearch: libSymphonySearch.symSE_search,
    symSEDeleteMessages: libSymphonySearch.symSE_delete_messages,
    symSECommitIndex: libSymphonySearch.symSE_commit_index,
    symSEFreeResult: libSymphonySearch.symSE_free_results,
    symSEGetLastMessageTimestamp: libSymphonySearch.symSE_get_last_message_timestamp,
    symSEInitAsync: libSymphonySearch.symSE_init.async,
    symSERemoveFolderAsync: libSymphonySearch.symSE_remove_folder.async,
    symSEEnsureIndexExistsAsync: libSymphonySearch.symSE_ensure_index_exists.async,
    symSEEnsureFolderExistsAsync: libSymphonySearch.symSE_ensure_folder_exists.async,
    symSEGetIndexerAsync: libSymphonySearch.symSE_get_indexer.async,
    symSECreatePartialIndexAsync: libSymphonySearch.symSE_create_partial_index.async,
    symSEMergePartialIndexAsync: libSymphonySearch.symSE_merge_partial_index.async,
    symSEIndexRealTimeAsync: libSymphonySearch.symSE_index_realtime.async,
    symSEMergeTempIndexAsync: libSymphonySearch.symSE_merge_temp_index.async,
    symSEClearTempIndexAsync: libSymphonySearch.symSE_clear_temp_index.async,
    symSESearchAsync: libSymphonySearch.symSE_search.async,
    symSEDeleteMessagesAsync: libSymphonySearch.symSE_delete_messages.async,
    symSECommitIndexAsync: libSymphonySearch.symSE_commit_index.async,
    symSEFreeResultAsync: libSymphonySearch.symSE_free_results.async,
    symSEGetLastMessageTimestampAsync: libSymphonySearch.symSE_get_last_message_timestamp.async
};