1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162
import { useContext, useEffect, useState } from 'https://esm.sh/react'import { RouterContext } from './context.ts'import { AsyncUseDenoError } from './error.ts'import events from './events.ts'import type { AlephEnv, RouterURL } from './types.ts'
export function useRouter(): RouterURL {    return useContext(RouterContext)}
export function useDeno<T = any>(callback: () => (T | Promise<T>), browser?: boolean, deps?: ReadonlyArray<any>): T {    const id = arguments[3] // generated by compiler    const { pathname, query } = useRouter()    const [data, setDate] = useState(() => {        const global = window as any        const useDenoUrl = `useDeno://${pathname}?${query.toString()}`        const { [`__asyncData_${useDenoUrl}`]: asyncData } = global        const key = `${useDenoUrl}#${id}`        if (asyncData && key in asyncData) {            return asyncData[key]        } else if (typeof Deno !== 'undefined' && Deno.version.deno) {            const ret = callback()            if (ret instanceof Promise) {                events.emit(useDenoUrl, id, ret.then(data => {                    if (asyncData) {                        asyncData[key] = data                    }                    events.emit(useDenoUrl, id, data)                }), true)                throw new AsyncUseDenoError('async useDeno')            } else {                if (asyncData) {                    asyncData[key] = ret                }                events.emit(useDenoUrl, id, ret)                return ret            }        }        return global[key] || null    })
    useEffect(() => {        if (browser) {            const ret = callback()            if (ret instanceof Promise) {                ret.then(setDate)            } else {                setDate(ret)            }        }    }, deps)
    return data}
export function useEnv<T>(predicate: (env: AlephEnv) => T): T {    const env = useDeno<T>(() => {        return predicate((globalThis as any).ALEPH.ENV)    })    return env}