"use server";
import { revalidatePath } from "next/cache";
import { redirect } from "next/navigation";
import { api, ApiError, unwrap } from "@/lib/api";
import { attempt, field, type ActionState } from "@/lib/actions";

const done = () => revalidatePath("/account");

/** Starts linking an IMVU account: the API makes a code to put in its tagline. */
export async function linkAccount(_: ActionState, form: FormData): Promise<ActionState> {
  return attempt(async () => {
    unwrap(await api.account.links.post({ username: field(form, "username") }));
    done();
  });
}

/** A pending link: check the tagline for the code, or cancel. */
export async function challengeAction(_: ActionState, form: FormData): Promise<ActionState> {
  const imvu = field(form, "imvu");
  return attempt(async () => {
    if (field(form, "intent") === "cancel") {
      unwrap(await api.account.challenges({ imvu }).delete());
    } else {
      unwrap(await api.account.links({ imvu }).check.post());
    }
    done();
  });
}

/** A linked account: check its age status with IMVU again, or unlink it. */
export async function linkAction(_: ActionState, form: FormData): Promise<ActionState> {
  const imvu = field(form, "imvu");
  return attempt(async () => {
    if (field(form, "intent") === "unlink") {
      unwrap(await api.account.links({ imvu }).delete());
      done();
      return;
    }
    unwrap(await api.account.links({ imvu }).recheck.post());
    done();
    return "Checked with IMVU just now.";
  });
}

export async function saveSettings(
  imvu: number,
  settings: { showBadge?: boolean; showPresence?: boolean; listRooms?: boolean },
): Promise<ActionState> {
  return attempt(async () => {
    unwrap(await api.account.links({ imvu }).patch(settings));
    done();
  });
}

export async function signOutComputers(_: ActionState, _form: FormData): Promise<ActionState> {
  return attempt(async () => {
    unwrap(await api.account["signout-computers"].post());
    done();
    return "Signed out everywhere.";
  });
}

/** Starts an age check with a provider that checks the person, and sends them to its page. */
export async function startAgeCheck(_: ActionState, form: FormData): Promise<ActionState> {
  let url: string | undefined;
  const state = await attempt(async () => {
    const started = unwrap(await api.age({ provider: field(form, "provider") }).start.post({ returnURL: "/account?age=back" }));
    if (started.kind === "redirect") url = started.url;
    done();
  });
  if (url) redirect(url);
  return state;
}

/** What making a token answers: the token itself, shown once. */
export type TokenState = { error?: string; token?: string; name?: string } | null;

/** Makes an API token. `grants` is JSON: [{permission, scope}]. */
export async function createToken(_: TokenState, form: FormData): Promise<TokenState> {
  let grants: { permission: string; scope: { type: "hub" } | { type: "catalog" | "product"; id: string } }[];
  try {
    grants = JSON.parse(field(form, "grants") || "[]");
  } catch {
    return { error: "Choose what it may do." };
  }
  if (!Array.isArray(grants) || grants.length === 0) return { error: "Choose what it may do." };
  try {
    const made = unwrap(await api.account.tokens.post({ name: field(form, "name"), days: Number(field(form, "days")), grants }));
    done();
    return { token: made.token, name: made.info.name };
  } catch (e) {
    if (e instanceof ApiError) return { error: e.message };
    throw e;
  }
}

/** Revokes an API token. */
export async function revokeToken(_: ActionState, form: FormData): Promise<ActionState> {
  return attempt(async () => {
    unwrap(await api.account.tokens({ id: field(form, "id") }).delete());
    done();
    return "Revoked.";
  });
}