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1x
| // import createHistory from 'history/createBrowserHistory';
import { createBrowserHistory as createHistory } from 'history';
import routington from 'routington';
import get from 'get-value';
import set from 'set-value';
import { AppCtx } from '@tao.js/core';
import makeRouteHandler, { deconstructPath, convertPath } from './routeHandler';
const CHANGE_ACTION_SIGNAL = 'POP';
function capitalize(str) {
if (!str || typeof str !== 'string') {
return str;
}
return `${str.substring(0, 1).toUpperCase()}${str.substring(1)}`;
}
function wrapAc(ac) {
return ac instanceof AppCtx
? ac
: new AppCtx(ac.t || ac.term, ac.a || ac.action, ac.o || ac.orient);
}
function wrapIgnore(handler, ignore) {
if (!ignore) {
return handler;
}
const ignoreACs = (Array.isArray(ignore) ? ignore : [ignore]).map(iac =>
wrapAc(iac)
);
return (tao, data) => {
const matchedIgnore = ignoreACs.some(ignoreAc => ignoreAc.isMatch(tao));
if (!matchedIgnore) {
return handler(tao, data);
}
};
}
function mergeData(pathData, defaultData, parentPath) {
Object.entries(defaultData).forEach(([key, val]) => {
const dataPath = parentPath ? `${parentPath}.${key}` : key;
if (typeof get(pathData, dataPath) === 'undefined') {
set(pathData, dataPath, val);
} else if (typeof val === 'object' && !Array.isArray(val)) {
mergeData(pathData, val, dataPath);
}
});
}
function reactToRoute(TAO, match, debug = false) {
debug && console.log('Router::reacting to route');
const pathMatched = match.node.deconstruction.reduce((pathData, pathItem) => {
if (!pathItem.match) {
return pathData;
}
const dataPath = pathItem.match[2];
const pathParam = pathItem.use.substring(1);
let paramData = match.param[pathParam];
if (paramData) {
set(pathData, dataPath, paramData);
}
return pathData;
}, {});
if (match.node.lowerCase) {
pathMatched.t = capitalize(pathMatched.t);
pathMatched.a = capitalize(pathMatched.a);
pathMatched.o = capitalize(pathMatched.o);
}
debug &&
console.log('reactToRoute::node.defaultData:', match.node.defaultData);
debug && console.log('reactToRoute::node.attached:', match.node.attached);
match.node.attached.forEach(trigram => {
const defaultData = match.node.defaultData
? match.node.defaultData.get(trigram.key)
: null;
let acParts = pathMatched;
if (defaultData) {
mergeData(acParts, defaultData);
}
const { t, a, o, ...data } = acParts;
const ac = new AppCtx(
trigram.isTermWild ? t : trigram.t,
trigram.isActionWild ? a : trigram.a,
trigram.isOrientWild ? o : trigram.o,
data
);
TAO.setCtx({ t: 'Route', a: 'Match', o: ac.o }, [match.node.route, ac]);
debug && console.log('reactToRoute::TAO.setAppCtx::ac', ac);
TAO.setAppCtx(ac);
});
}
export default class Router {
constructor(TAO, history, opts) {
this._tao = TAO;
if (!opts) {
opts = history;
history = null;
}
const { debug = false } = opts || {};
this._debug = debug;
this._history = history || createHistory();
this.setupEvents = this.setupEvents.bind(this);
this.historyChange = this.historyChange.bind(this);
this.getPathFrom = this.getPathFrom.bind(this);
this.getAcsFrom = this.getAcsFrom.bind(this);
this._routes = new Map();
this._router = routington();
this.setupEvents(
TAO,
this._history,
opts.initAc,
opts.incomingAc,
opts.defaultRoute,
opts.orient
);
}
setupEvents = (TAO, history, initAc, incomingAc, defaultRoute, orient) => {
this._unlistenHistory = history.listen(this.historyChange);
const incoming = !incomingAc
? []
: (Array.isArray(incomingAc) ? incomingAc : [incomingAc]).map(ac =>
wrapAc(ac)
);
TAO.addInlineHandler(initAc, (tao, data) => {
return new AppCtx('Router', 'Init', tao.o);
});
TAO.addInlineHandler(
{ t: 'Routes', a: 'Configure', o: orient || '' },
(tao, { Routes, Configure }) => {
const routes = Array.isArray(Routes) ? Routes : [Routes];
// routes.forEach((r, i) => {
// const config = Configure[i];
routes.forEach(({ Route, Add, Remove, Attach, Detach }) => {
if (Add) {
TAO.setCtx({ t: 'Route', a: 'Add', o: tao.o }, [Route, Add]);
}
if (Remove) {
TAO.setCtx({ t: 'Route', a: 'Remove', o: tao.o }, [Route, Remove]);
}
if (Attach) {
TAO.setCtx({ t: 'Route', a: 'Attach', o: tao.o }, [Route, Attach]);
}
if (Detach) {
TAO.setCtx({ t: 'Route', a: 'Detach', o: tao.o }, [Route, Detach]);
}
});
return incoming[0];
}
);
TAO.addInlineHandler(
{ t: 'Route', a: 'Add', o: orient || '' },
(tao, { Route, Add }) => {
// add Route to the Router's configuration
this._debug && console.log(`adding to Route:`, Route, Add);
const routeHandler = makeRouteHandler(history, Route, this._debug);
const trigram = wrapAc(Add.tao || Add);
const oldHandler = this._routes.get(trigram.key);
if (oldHandler) {
TAO.removeAsyncHandler(trigram.unwrapCtx(), oldHandler);
}
const handler = wrapIgnore(routeHandler, Add.ignore);
this._routes.set(trigram.key, handler);
this._debug &&
console.log('route.add::trigram.unwrapCtx():', trigram.unwrapCtx());
TAO.addAsyncHandler(trigram.unwrapCtx(), handler);
if (Add.attach) {
return new AppCtx('Route', 'Attach', tao.o, Route, Add);
}
}
);
TAO.addInlineHandler(
{ t: 'Route', a: 'Remove', o: orient || '' },
(tao, { Route, Remove }) => {
// remove Route from the Router's configuration
this._debug && console.log(`removing from Route ${Route}:`, Remove);
const trigram = wrapAc(Remove);
const routeHandler = this._routes.get(trigram.key);
if (!routeHandler) {
return;
}
TAO.removeAsyncHandler(trigram.unwrapCtx(), routeHandler);
this._routes.delete(trigram.key);
if (Remove.detach) {
return new AppCtx('Route', 'Detach', tao.o, Route, Remove);
}
}
);
TAO.addInlineHandler(
{ t: 'Route', a: 'Attach', o: orient || '' },
(tao, { Route, Attach }) => {
// attach Trigram to an incoming route
this._debug && console.log('Going to Attach Route:', { Route, Attach });
const routeToUse = Route.path || Route;
const deconstruction = deconstructPath(routeToUse);
const convertedPath = convertPath(deconstruction);
const node = this._router.define(convertedPath)[0];
node.route = routeToUse;
node.lowerCase = Route.lowerCase;
node.deconstruction = deconstruction;
node.attached = node.attached || [];
// const attachTo = wrapAc({ o: tao.o, ...(Attach.tao || Attach) });
const attachTo = wrapAc(Attach.tao || Attach);
node.attached.push(attachTo);
node.defaultData = node.defaultData || new Map();
if (Attach.tao) {
node.defaultData.set(attachTo.key, Attach.data || {});
}
}
);
TAO.addInlineHandler(
{ t: 'Route', a: 'Detach', o: orient || '' },
(tao, { Route, Detach }) => {
// detach Trigram from an incoming route
this._debug && console.log('Going to Detach Route:', { Route, Detach });
const routeToUse = Route.path || Route;
const deconstruction = deconstructPath(routeToUse);
const convertedPath = convertPath(deconstruction);
const node = this._router.define(convertedPath)[0];
if (node.attached && node.attached.length) {
// const attachTo = wrapAc({ o: tao.o, ...(Attach.tao || Attach) });
const attachTo = wrapAc(Attach.tao || Attach);
node.attached = node.attached.filter(
trigram => !trigram.isMatch(attachTo, true)
);
if (node.defaultData && node.defaultData.has(attachTo.key)) {
node.defaultData.delete(attachTo.key);
}
}
}
);
// TAO.addAsyncHandler({}, (tao, data) => {
// const current = new AppCtx(tao.t, tao.a, tao.o, data);
// // ignore the initial AC b/c we use that to trigger {Router,Init,}
// if (current.key === initAc.key) {
// return;
// }
// const updatePath = this.getPathFrom(tao, data);
// if (updatePath != null) {
// this._history.push(updatePath);
// }
// });
if (incoming.length) {
this._debug && console.log('adding handlers for incoming:', incoming);
incoming.forEach(inAc => {
TAO.addInlineHandler(inAc, (tao, data) => {
this._debug &&
console.log('Router::incoming AC handler:', { tao, data });
let match = this._router.match(this._history.location.pathname);
if (!match && defaultRoute) {
match = this._router.match(defaultRoute);
this._debug &&
console.log(
'Router::no match::match from default route "%s"',
defaultRoute,
match
);
}
if (match) {
reactToRoute(this._tao, match, this._debug);
}
// const loc = this._history.location;
// const acs = this.getAcsFrom(loc, tao, data);
// acs.forEach(appCtx => {
// if (appCtx != null) {
// TAO.setAppCtx(appCtx);
// }
// });
});
});
}
}; //;
// this should move to just being an added Async Handler on the individual routes
// OR would that make the TAO sets too big?
// they would certainly be completely directed with no middle man interpreter
getPathFrom = (tao, data) => {
if (tao.a !== 'View') {
return;
}
return tao.t === 'Space' ? '/space' : '';
};
getAcsFrom = (location, tao, data) => {
return [];
};
historyChange = (location, action) => {
// match the new location to our route tree to find Trigrams and fire ACs from path data
this._debug && console.log('history change:', { location, action });
const match = this._router.match(location.pathname);
if (CHANGE_ACTION_SIGNAL === action && match) {
reactToRoute(this._tao, match, this._debug);
}
};
}
|