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/**
* Instead of dealing with react-router's ever-changing APIs,
* we use a simple url state manager where we only
*
* - read the initial URL state on page load
* - push updates to the URL later on.
*/
import { select, setFilter, setHighlight } from "./ducks/flows"
import { selectTab } from "./ducks/ui/flow"
import { toggleVisibility } from "./ducks/eventLog"
const Query = {
SEARCH: "s",
HIGHLIGHT: "h",
SHOW_EVENTLOG: "e"
};
function updateStoreFromUrl(store) {
const [path, query] = window.location.hash.substr(1).split("?", 2)
const path_components = path.substr(1).split("/")
if (path_components[0] === "flows") {
if (path_components.length == 3) {
const [flowId, tab] = path_components.slice(1)
store.dispatch(select(flowId))
store.dispatch(selectTab(tab))
}
}
if (query) {
query
.split("&")
.forEach((x) => {
const [key, value] = x.split("=", 2)
switch (key) {
case Query.SEARCH:
store.dispatch(setFilter(value))
break
case Query.HIGHLIGHT:
store.dispatch(setHighlight(value))
break
case Query.SHOW_EVENTLOG:
if (!store.getState().eventLog.visible)
store.dispatch(toggleVisibility())
break
default:
console.error(`unimplemented query arg: ${x}`)
}
})
}
}
function updateUrlFromStore(store) {
const state = store.getState()
let query = {
[Query.SEARCH]: state.flows.filter,
[Query.HIGHLIGHT]: state.flows.highlight,
[Query.SHOW_EVENTLOG]: state.eventLog.visible,
}
const queryStr = Object.keys(query)
.filter(k => query[k])
.map(k => `${k}=${query[k]}`)
.join("&")
let url
if (state.flows.selected.length > 0) {
url = `/flows/${state.flows.selected[0]}/${state.ui.flow.tab}`
} else {
url = "/flows"
}
if (queryStr) {
url += "?" + queryStr
}
if (window.location.hash.substr(1) !== url) {
history.replaceState(undefined, "", `/#${url}`)
}
}
export default function initialize(store) {
updateStoreFromUrl(store)
store.subscribe(() => updateUrlFromStore(store))
}
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