import * as types from 'constants/action_types';
import lbry from 'lbry';

const reducers = {};
const defaultState = {
	isLoaded: false,
	currentPath: 'discover',
	platform: process.platform,
	upgradeSkipped: sessionStorage.getItem('upgradeSkipped'),
	daemonReady: false,
	obscureNsfw: !lbry.getClientSetting('showNsfw'),
	hasSignature: false
};

reducers[types.DAEMON_READY] = function(state, action) {
	return Object.assign({}, state, {
		daemonReady: true
	});
};

reducers[types.CHANGE_PATH] = function(state, action) {
	return Object.assign({}, state, {
		currentPath: action.data.path
	});
};

reducers[types.UPGRADE_CANCELLED] = function(state, action) {
	return Object.assign({}, state, {
		downloadProgress: null,
		upgradeDownloadComplete: false,
		modal: null
	});
};

reducers[types.UPGRADE_DOWNLOAD_COMPLETED] = function(state, action) {
	return Object.assign({}, state, {
		downloadPath: action.data.path,
		upgradeDownloading: false,
		upgradeDownloadCompleted: true
	});
};

reducers[types.UPGRADE_DOWNLOAD_STARTED] = function(state, action) {
	return Object.assign({}, state, {
		upgradeDownloading: true
	});
};

reducers[types.SKIP_UPGRADE] = function(state, action) {
	sessionStorage.setItem('upgradeSkipped', true);

	return Object.assign({}, state, {
		upgradeSkipped: true,
		modal: null
	});
};

reducers[types.UPDATE_VERSION] = function(state, action) {
	return Object.assign({}, state, {
		version: action.data.version
	});
};

reducers[types.OPEN_MODAL] = function(state, action) {
	return Object.assign({}, state, {
		modal: action.data.modal,
		modalExtraContent: action.data.extraContent
	});
};

reducers[types.CLOSE_MODAL] = function(state, action) {
	return Object.assign({}, state, {
		modal: undefined,
		modalExtraContent: undefined
	});
};

reducers[types.UPGRADE_DOWNLOAD_PROGRESSED] = function(state, action) {
	return Object.assign({}, state, {
		downloadProgress: action.data.percent
	});
};

reducers[types.DAEMON_READY] = function(state, action) {
	return Object.assign({}, state, {
		daemonReady: true
	});
};

reducers[types.SHOW_SNACKBAR] = function(state, action) {
	const { message, linkText, linkTarget, isError } = action.data;
	const snackBar = Object.assign({}, state.snackBar);
	const snacks = Object.assign([], snackBar.snacks);
	snacks.push({
		message,
		linkText,
		linkTarget,
		isError
	});
	const newSnackBar = Object.assign({}, snackBar, {
		snacks
	});

	return Object.assign({}, state, {
		snackBar: newSnackBar
	});
};

reducers[types.REMOVE_SNACKBAR_SNACK] = function(state, action) {
	const snackBar = Object.assign({}, state.snackBar);
	const snacks = Object.assign([], snackBar.snacks);
	snacks.shift();

	const newSnackBar = Object.assign({}, snackBar, {
		snacks
	});

	return Object.assign({}, state, {
		snackBar: newSnackBar
	});
};

export default function reducer(state = defaultState, action) {
	const handler = reducers[action.type];
	if (handler) return handler(state, action);
	return state;
}