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/*
This file is part of GNU Taler
(C) 2021 Taler Systems S.A.
GNU Taler is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
import { useEffect } from 'preact/hooks';
import useSWR, { trigger, useSWRInfinite, cache, mutate } from 'swr';
import { useBackendContext } from '../context/backend';
// import { useFetchContext } from '../context/fetch';
import { useInstanceContext } from '../context/instance';
import { MerchantBackend, WithId } from '../declaration';
import { fetcher, HttpError, HttpResponse, HttpResponseOk, mutateAll, request } from './backend';
export interface ProductAPI {
createProduct: (data: MerchantBackend.Products.ProductAddDetail) => Promise<void>;
updateProduct: (id: string, data: MerchantBackend.Products.ProductPatchDetail) => Promise<void>;
deleteProduct: (id: string) => Promise<void>;
lockProduct: (id: string, data: MerchantBackend.Products.LockRequest) => Promise<void>;
}
export function useProductAPI(): ProductAPI {
const { url: baseUrl, token: adminToken } = useBackendContext();
const { token: instanceToken, id, admin } = useInstanceContext();
const { url, token } = !admin ? {
url: baseUrl, token: adminToken
} : {
url: `${baseUrl}/instances/${id}`, token: instanceToken
};
const createProduct = async (data: MerchantBackend.Products.ProductAddDetail): Promise<void> => {
await request(`${url}/private/products`, {
method: 'post',
token,
data
});
await mutateAll(/@"\/private\/products"@/, null);
};
const updateProduct = async (productId: string, data: MerchantBackend.Products.ProductPatchDetail): Promise<void> => {
const r = await request(`${url}/private/products/${productId}`, {
method: 'patch',
token,
data
});
/**
* There is some inconsistency in how the cache is evicted.
* I'm keeping this for later inspection
*/
// -- Clear all cache
// -- This seems to work always but is bad
// const keys = [...cache.keys()]
// console.log(keys)
// cache.clear()
// await Promise.all(keys.map(k => trigger(k)))
// -- From the keys to the cache trigger
// -- An intermediate step
// const keys = [
// [`/private/products`, token, url],
// [`/private/products/${productId}`, token, url],
// ]
// cache.clear()
// const f: string[][] = keys.map(k => cache.serializeKey(k))
// console.log(f)
// const m = flat(f)
// console.log(m)
// await Promise.all(m.map(k => trigger(k, true)))
// await Promise.all(keys.map(k => mutate(k)))
// -- This is how is supposed to be use
// await mutate([`/private/products`, token, url])
// await mutate([`/private/products/${productId}`, token, url])
// await mutateAll(/@"\/private\/products"@/);
await mutateAll(/@"\/private\/products\/.*"@/);
// return true
// return r
// -- FIXME: why this un-break the tests?
return Promise.resolve()
};
const deleteProduct = async (productId: string): Promise<void> => {
await request(`${url}/private/products/${productId}`, {
method: 'delete',
token,
});
await mutateAll(/@"\/private\/products"@/);
};
const lockProduct = async (productId: string, data: MerchantBackend.Products.LockRequest): Promise<void> => {
await request(`${url}/private/products/${productId}/lock`, {
method: 'post',
token,
data
});
await mutateAll(/@"\/private\/products"@/);
};
return { createProduct, updateProduct, deleteProduct, lockProduct };
}
export function useInstanceProducts(): HttpResponse<(MerchantBackend.Products.ProductDetail & WithId)[]> {
const { url: baseUrl, token: baseToken } = useBackendContext();
const { token: instanceToken, id, admin } = useInstanceContext();
// const { useSWR, useSWRInfinite } = useFetchContext();
const { url, token } = !admin ? {
url: baseUrl, token: baseToken
} : {
url: `${baseUrl}/instances/${id}`, token: instanceToken
};
const { data: list, error: listError, isValidating: listLoading } = useSWR<HttpResponseOk<MerchantBackend.Products.InventorySummaryResponse>, HttpError>([`/private/products`, token, url], fetcher, {
refreshInterval: 0,
refreshWhenHidden: false,
revalidateOnFocus: false,
revalidateOnReconnect: false,
refreshWhenOffline: false,
});
const { data: products, error: productError, setSize, size } = useSWRInfinite<HttpResponseOk<MerchantBackend.Products.ProductDetail>, HttpError>((pageIndex: number) => {
if (!list?.data || !list.data.products.length || listError || listLoading) return null
return [`/private/products/${list.data.products[pageIndex].product_id}`, token, url]
}, fetcher, {
revalidateAll: true,
})
useEffect(() => {
if (list?.data && list.data.products.length > 0) {
setSize(list.data.products.length)
}
}, [list?.data.products.length, listLoading])
if (listLoading) return { loading: true, data: [] }
if (listError) return listError
if (productError) return productError
if (list?.data && list.data.products.length === 0) {
return { ok: true, data: [] }
}
if (products) {
const dataWithId = products.map((d) => {
//take the id from the queried url
return ({ ...d.data, id: d.info?.url.replace(/.*\/private\/products\//, '') || '' })
})
return { ok: true, data: dataWithId }
}
return { loading: true }
}
export function useProductDetails(productId: string): HttpResponse<MerchantBackend.Products.ProductDetail> {
const { url: baseUrl, token: baseToken } = useBackendContext();
const { token: instanceToken, id, admin } = useInstanceContext();
const { url, token } = !admin ? {
url: baseUrl, token: baseToken
} : {
url: `${baseUrl}/instances/${id}`, token: instanceToken
};
const { data, error, isValidating } = useSWR<HttpResponseOk<MerchantBackend.Products.ProductDetail>, HttpError>(
[`/private/products/${productId}`, token, url], fetcher, {
refreshInterval: 0,
refreshWhenHidden: false,
revalidateOnFocus: false,
revalidateOnReconnect: false,
refreshWhenOffline: false,
}
)
if (isValidating) return { loading: true, data: data?.data }
if (data) return data
if (error) return error
return { loading: true }
}
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