import type { AppRecord, ReleaseRecord, SourceRecord } from "@/packages/core/src/index";

export type DashboardSource = {
  source: SourceRecord;
  apps: AppRecord[];
  releases: ReleaseRecord[];
};

export type DashboardData = {
  workspace: {
    name: string;
    slug: string;
  };
  sources: DashboardSource[];
  usage: {
    storageBytes: number;
    sourceCount: number;
  };
  limits: {
    maxSources: number;
    maxAppsPerSource: number;
    maxStorageBytes: number;
    maxUploadBytes: number;
  };
};

export type Notice = {
  tone: "success" | "error" | "info";
  text: string;
};

export type Visibility = SourceRecord["visibility"];

export const API_BASE = process.env.NEXT_PUBLIC_API_BASE_URL || "http://localhost:4000";
export const AUTH_MODE = process.env.NEXT_PUBLIC_AUTH_MODE || "demo";
export const DEMO_HEADERS = { "x-demo-user": "demo@altdock.local" };

export async function api<T>(path: string, init: RequestInit = {}) {
  const headers = new Headers(init.headers);
  headers.set("accept", "application/json");
  if (init.body) headers.set("content-type", "application/json");
  Object.entries(DEMO_HEADERS).forEach(([key, value]) => headers.set(key, value));
  const response = await fetch(`${API_BASE}${path}`, { ...init, headers, credentials: "include" });
  const body = (await response.json().catch(() => ({}))) as T & { error?: string; detail?: string };
  if (!response.ok) throw new Error(body.detail || body.error || `Request failed (${response.status})`);
  return body;
}

export function formatBytes(value: number) {
  if (!value) return "0 B";
  const units = ["B", "KB", "MB", "GB"];
  const index = Math.min(Math.floor(Math.log(value) / Math.log(1024)), units.length - 1);
  return `${(value / 1024 ** index).toFixed(index === 0 ? 0 : 1)} ${units[index]}`;
}

export function formatDate(value: string) {
  return new Intl.DateTimeFormat("ja-JP", { year: "numeric", month: "short", day: "numeric" }).format(new Date(value));
}

export function formatDateTime(value: string) {
  return new Intl.DateTimeFormat("ja-JP", { year: "numeric", month: "short", day: "numeric", hour: "2-digit", minute: "2-digit" }).format(new Date(value));
}

export function statusLabel(status: ReleaseRecord["status"]) {
  return {
    uploaded: "アップロード済み",
    processing: "処理中",
    ready: "公開準備完了",
    rejected: "要修正",
    published: "公開中",
    archived: "アーカイブ",
  }[status];
}

export function statusTone(status: ReleaseRecord["status"]) {
  return {
    uploaded: "neutral",
    processing: "info",
    ready: "warning",
    rejected: "danger",
    published: "success",
    archived: "neutral",
  }[status] as "neutral" | "info" | "warning" | "danger" | "success";
}

export function visibilityLabel(visibility: Visibility) {
  return { draft: "下書き", unlisted: "限定公開", public: "公開" }[visibility];
}

export function visibilityTone(visibility: Visibility) {
  return { draft: "neutral", unlisted: "warning", public: "success" }[visibility] as "neutral" | "warning" | "success";
}

export function flattenSources(dashboard: DashboardData) {
  return dashboard.sources;
}

export function flattenApps(dashboard: DashboardData) {
  return dashboard.sources.flatMap((entry) => entry.apps.map((app) => ({ app, source: entry.source, releases: entry.releases.filter((release) => release.appId === app.id) })));
}

export function flattenReleases(dashboard: DashboardData) {
  return dashboard.sources.flatMap((entry) => entry.releases.map((release) => ({ release, source: entry.source, app: entry.apps.find((app) => app.id === release.appId) })));
}