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import type { TRPCMutationKey } from "~app/trpc";
import { addToast, closeToastById } from "~components/toast";
import type {
LifecycleContextWithUpdateFns,
TRPCMutationOptions,
ToastContext,
ToastObject,
ToastOptions,
UseContextedMutationOptions,
} from "~mutations/context";
import type { ArrayOf, MaybeAddElementToArray } from "~utils/types";
const DELAYS = {
// Mutation are fired nearly simultaneously
mutate: 10,
// Success and errors might wait out a bit
success: 300,
error: 300,
};
type OnLifecycle<
K extends "onMutate" | "onSuccess" | "onError",
Path extends TRPCMutationKey,
LifecycleContext = unknown,
> = Parameters<NonNullable<TRPCMutationOptions<Path, LifecycleContext>[K]>>;
type OptionsLocal<
Path extends TRPCMutationKey,
OuterContext = undefined,
LifecycleContext = unknown,
> = {
toastArgs: MaybeAddElementToArray<[], OuterContext>;
mutateArgs: OnLifecycle<
"onMutate",
Path,
LifecycleContextWithUpdateFns<LifecycleContext>
>;
successArgs: OnLifecycle<"onSuccess", Path, LifecycleContext>;
errorArgs: OnLifecycle<"onError", Path, LifecycleContext>;
toastObject?: ToastObject;
};
type MutateOptionsKey = "toastArgs" | "mutateArgs";
type ErrorOptionsKey = "toastArgs" | "errorArgs" | "toastObject";
type SuccessOptionsKey = "toastArgs" | "successArgs" | "toastObject";
type Dataloaders<
Path extends TRPCMutationKey,
OuterContext = undefined,
LifecycleContext = unknown,
Options extends OptionsLocal<Path, OuterContext, LifecycleContext> =
OptionsLocal<Path, OuterContext, LifecycleContext>,
> = {
mutateDataloader: Dataloader<
Pick<Options, MutateOptionsKey>,
ToastObject | undefined,
string
>;
errorDataloader: Dataloader<Pick<Options, ErrorOptionsKey>, void, string>;
successDataloader: Dataloader<Pick<Options, SuccessOptionsKey>, void, string>;
};
const dataloaderStorage: Partial<{
[Path in TRPCMutationKey]: Dataloaders<Path>;
}> = {};
const createArrayOf = <T extends object, R extends unknown[]>(
inputs: readonly T[],
extract: (input: T) => R,
): ArrayOf<R> => {
Iif (!inputs[0]) {
throw new Error(`Creating ArrayOf requires at least 1 element`);
}
return extract(inputs[0]).map((_, index) =>
inputs.map((input) => extract(input)[index]),
) as ArrayOf<R>;
};
const createDataloader = <
Input extends object,
Output,
OuterContextArgs extends unknown[],
ActionArgs extends unknown[],
>(
key: string,
delay: number,
getOptions: (
...args1: ArrayOf<OuterContextArgs>
) => (...args2: ArrayOf<ActionArgs>) => ToastOptions | undefined,
getOuterContext: (input: Input) => OuterContextArgs,
getActionArgs: (input: Input) => ActionArgs,
runResult: (result: ToastOptions, inputs: readonly Input[]) => Output,
runPre?: (inputs: readonly Input[]) => void,
) =>
new Dataloader<Input, Output | undefined, string>(
(inputs) => {
runPre?.(inputs);
const outerContext = createArrayOf(inputs, getOuterContext);
const actionArgs = createArrayOf(inputs, getActionArgs);
const toastOptions =
typeof getOptions === "function"
? getOptions(...outerContext)(...actionArgs)
: getOptions;
if (!toastOptions) {
return Promise.resolve(inputs.map(() => undefined));
}
const result = runResult(toastOptions, inputs);
return Promise.resolve(inputs.map(() => result));
},
{
batchScheduleFn: (callback) => {
setTimeout(callback, delay);
},
cacheKeyFn: JSON.stringify,
name: key,
// We don't want to memoize the response of dataloader as dataloader is just a batcher here
cache: false,
},
);
export const getMutationToaster = <
Path extends TRPCMutationKey,
OuterContext = undefined,
LifecycleContext = unknown,
Options extends OptionsLocal<Path, OuterContext, LifecycleContext> =
OptionsLocal<Path, OuterContext, LifecycleContext>,
>(
key: Path,
toastContext: ToastContext,
mutateToastOptions: UseContextedMutationOptions<
Path,
OuterContext,
LifecycleContext
>["mutateToastOptions"],
errorToastOptions: UseContextedMutationOptions<
Path,
OuterContext,
LifecycleContext
>["errorToastOptions"],
successToastOptions: UseContextedMutationOptions<
Path,
OuterContext,
LifecycleContext
>["successToastOptions"],
) => {
const dataloaders: Dataloaders<Path, OuterContext, LifecycleContext> =
(dataloaderStorage[key] as
| Dataloaders<Path, OuterContext, LifecycleContext>
| undefined) || {
mutateDataloader: createDataloader<
Pick<Options, MutateOptionsKey>,
{ id: string; count: number },
Options["toastArgs"],
Options["mutateArgs"]
>(
key,
DELAYS.mutate,
(...toastArgs) =>
(
...mutateArgs: ArrayOf<
OnLifecycle<"onMutate", Path, LifecycleContext>
>
) => {
Iif (!mutateToastOptions) {
return;
}
return mutateToastOptions(
toastContext,
...toastArgs,
)(...mutateArgs);
},
(input) => input.toastArgs,
(input) => input.mutateArgs,
(result, inputs) => {
const toastId = addToast({
title: toastContext.t("toasts.header.mutate"),
description: result.text,
timeout: Infinity,
});
// We always have a toast queue
// oxlint-disable-next-line typescript/no-non-null-assertion
return { id: toastId!, count: inputs.length };
},
),
errorDataloader: createDataloader<
Pick<Options, ErrorOptionsKey>,
void,
Options["toastArgs"],
Options["errorArgs"]
>(
key,
DELAYS.error,
(...toastArgs) =>
(
...errorArgs: ArrayOf<
OnLifecycle<"onError", Path, LifecycleContext>
>
) =>
errorToastOptions(toastContext, ...toastArgs)(...errorArgs),
(input) => input.toastArgs,
(input) => input.errorArgs,
(result) => {
addToast({
title: toastContext.t("toasts.header.error"),
description: result.text,
color: "danger",
});
},
(inputs) => {
const toastObject = inputs[0]?.toastObject;
Iif (!toastObject) {
return;
}
toastObject.count -= inputs.length;
Eif (toastObject.count === 0) {
closeToastById(toastObject.id);
}
},
),
successDataloader: createDataloader<
Pick<Options, SuccessOptionsKey>,
void,
Options["toastArgs"],
Options["successArgs"]
>(
key,
DELAYS.success,
(...toastArgs) =>
(
...successArgs: ArrayOf<
OnLifecycle<"onSuccess", Path, LifecycleContext>
>
) =>
successToastOptions?.(toastContext, ...toastArgs)(...successArgs),
(input) => input.toastArgs,
(input) => input.successArgs,
(result) => {
addToast({
title: toastContext.t("toasts.header.success"),
description: result.text,
color: "success",
});
},
(inputs) => {
const toastObject = inputs[0]?.toastObject;
Iif (!toastObject) {
return;
}
toastObject.count -= inputs.length;
if (toastObject.count === 0) {
closeToastById(toastObject.id);
}
},
),
};
dataloaderStorage[key] = dataloaders as unknown as Dataloaders<Path>;
return {
mutateToast: (input: Pick<Options, MutateOptionsKey>) =>
dataloaders.mutateDataloader.load(input),
errorToast: (input: Pick<Options, ErrorOptionsKey>) =>
dataloaders.errorDataloader.load(input),
successToast: (input: Pick<Options, SuccessOptionsKey>) =>
dataloaders.successDataloader.load(input),
};
};
|