import { fetchJson } from "@/lib/client/fetch-json";
import type { Schedule, ScheduleEndCondition, ScheduleFrequency } from "@/lib/shared/types";

type ScheduleInput = {
    entryType: "SPENDING" | "INCOME";
    amountDollars: number;
    necessity: "NECESSARY" | "BOTH" | "UNNECESSARY";
    purchaseType: string;
    notes?: string;
    tags?: string[];
    startsOn: string;
    frequency: ScheduleFrequency;
    intervalCount?: number;
    endCondition?: ScheduleEndCondition;
    endCount?: number | null;
    endDate?: string | null;
};

export async function schedulesList() {
    return fetchJson<{ schedules: Schedule[] }>("/api/schedules", { method: "GET" });
}

export async function schedulesCreate(input: ScheduleInput & { createEntryNow?: boolean }) {
    return fetchJson<{ schedule: Schedule }>("/api/schedules", {
        method: "POST",
        body: JSON.stringify(input)
    });
}

export async function schedulesUpdate(input: ScheduleInput & { id: number; nextRunOn?: string; isActive?: boolean }) {
    return fetchJson<{ schedule: Schedule }>(`/api/schedules/${input.id}`, {
        method: "PATCH",
        body: JSON.stringify(input)
    });
}

export async function schedulesDelete(input: { id: number | string }) {
    const numericId = Number(input.id);
    if (!Number.isFinite(numericId) || numericId <= 0)
        return { error: { code: "INVALID_ID", message: "Invalid id" } } as const;
    return fetchJson<{ ok: true }>(`/api/schedules/${numericId}`, { method: "DELETE" });
}