import * as Either from "../Either.js";
import { dual } from "../Function.js";
import * as Predicate from "../Predicate.js";
import * as core from "./core.js";
import * as layer from "./layer.js";
import * as InternalSchedule from "./schedule.js";
/** @internal */
export const TypeId = /*#__PURE__*/Symbol.for("effect/ExecutionPlan");
/** @internal */
export const isExecutionPlan = u => Predicate.hasProperty(u, TypeId);
/** @internal */
export const withExecutionPlan = /*#__PURE__*/dual(2, (effect, plan) => core.suspend(() => {
let i = 0;
let result;
return core.flatMap(core.whileLoop({
while: () => i < plan.steps.length && (result === undefined || Either.isLeft(result)),
body: () => {
const step = plan.steps[i];
let nextEffect = layer.effect_provide(effect, step.provide);
if (result) {
let attempted = false;
const wrapped = nextEffect;
// ensure the schedule is applied at least once
nextEffect = core.suspend(() => {
if (attempted) return wrapped;
attempted = true;
return result;
});
nextEffect = InternalSchedule.scheduleDefectRefail(InternalSchedule.retry_Effect(nextEffect, scheduleFromStep(step, false)));
} else {
const schedule = scheduleFromStep(step, true);
nextEffect = schedule ? InternalSchedule.scheduleDefectRefail(InternalSchedule.retry_Effect(nextEffect, schedule)) : nextEffect;
}
return core.either(nextEffect);
},
step: either => {
result = either;
i++;
}
}), () => result);
}));
/** @internal */
export const scheduleFromStep = (step, first) => {
if (!first) {
return InternalSchedule.fromRetryOptions({
schedule: step.schedule ? step.schedule : step.attempts ? undefined : InternalSchedule.once,
times: step.attempts,
while: step.while
});
} else if (step.attempts === 1 || !(step.schedule || step.attempts)) {
return undefined;
}
return InternalSchedule.fromRetryOptions({
schedule: step.schedule,
while: step.while,
times: step.attempts ? step.attempts - 1 : undefined
});
};
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