// TriliumNext WechatSync Publisher — API routes
// 补丁目标: apps/server/src/routes/api/publisher_frontend.ts
//
// 提供:
//   GET  /api/publisher/registered              已注册发布器
//   GET  /api/publisher/platforms               已配置平台列表
//   GET  /api/publisher/status                  桥接/扩展连接状态
//   GET  /api/publisher/platform-status         各平台登录状态（含缓存）
//   POST /api/publisher/platforms               保存平台配置
//   GET  /api/publisher/notes-with-children/:id 列出目录下笔记
//   POST /api/publisher/publish                 发布文章到平台

import { becca, options as optionService } from "@triliumnext/core";
import type { Request, Response } from "express";
import auth from "../../services/auth.js";
import { apiResultHandler } from "../route_api.js";
import { getRegisteredPublishers, parsePlatformConfigs, extractArticleContent, publishToPlatforms } from "../../services/publisher/core.js";
import { WechatSyncPublisher } from "../../services/publisher/wechatsync.js";
import type { PlatformConfig } from "../../services/publisher/types.js";

const OPT = "publisherConfigs";
const BRIDGE_HOST = process.env.BRIDGE_HOST || "host.docker.internal";
const BRIDGE_HTTP_PORT = parseInt(process.env.SYNC_WS_PORT || "9600", 10) + 1;
const BRIDGE_URL = `http://${BRIDGE_HOST}:${BRIDGE_HTTP_PORT}`;

export function registerPublisherApi(
    apiRoute: (m: string, p: string, h: (req: Request, res: Response) => any) => void,
    asyncApiRoute: (m: string, p: string, h: (req: Request, res: Response) => Promise<any>) => void,
    asyncRoute: (m: string, p: string, mw: any[], h: (req: Request, res: Response) => Promise<any>, rh: any) => void
) {
    apiRoute("get", "/api/publisher/registered", () => ({ publishers: getRegisteredPublishers() }));
    apiRoute("get", "/api/publisher/platforms", () => ({ platforms: parsePlatformConfigs(optionService.getOptionOrNull(OPT) || undefined) }));

    asyncApiRoute("get", "/api/publisher/status", async () => ({
        bridge: await WechatSyncPublisher.checkBridge(),
        wechatsync: { installed: true }
    }));

    // 平台登录状态（从桥接扩展获取，带缓存支持）
    asyncApiRoute("get", "/api/publisher/platform-status", async () => {
        try {
            const resp = await fetch(`${BRIDGE_URL}/platforms`);
            const data = await resp.json() as any;
            return {
                platforms: data.platforms || [],
                error: data.error || null,
                cached: data.cached === true,
                cachedAt: data.cachedAt || null
            };
        } catch (e: any) {
            return { platforms: [], error: e?.message || "Bridge not reachable", cached: false };
        }
    });

    asyncRoute("post", "/api/publisher/platforms", [auth.checkApiAuth], async (req) => {
        const { platforms } = req.body as { platforms: PlatformConfig[] };
        if (!Array.isArray(platforms)) return [400, { error: "platforms must be an array" }] as any;
        optionService.setOption(OPT, JSON.stringify(platforms));
        return { success: true, count: platforms.length };
    }, apiResultHandler);

    apiRoute("get", "/api/publisher/notes-with-children/:noteId", (req) => {
        const { noteId } = req.params;
        const note = becca.getNote(noteId);
        if (!note) return [404, { error: "Note not found" }] as any;
        const results: { noteId: string; title: string }[] = [];
        function walk(n: any) { results.push({ noteId: n.noteId, title: n.title }); for (const child of n.getChildNotes()) walk(child); }
        walk(note);
        return { notes: results };
    });

    asyncRoute("post", "/api/publisher/publish", [auth.checkApiAuth], async (req) => {
        const { noteId, platforms: targetPlatforms } = req.body as { noteId: string; platforms?: string[] };
        if (!noteId) return [400, { error: "noteId is required" }] as any;
        const note = becca.getNote(noteId);
        if (!note) return [404, { error: "Note not found" }] as any;
        const html = note.getContent() || "";
        const article = extractArticleContent(noteId, note.title, html.toString());
        const configs = parsePlatformConfigs(optionService.getOptionOrNull(OPT) || undefined);
        const matched = (targetPlatforms && targetPlatforms.length > 0)
            ? configs.filter(c => targetPlatforms.includes(c.platform) || targetPlatforms.includes(c.id))
            : configs;
        if (matched.length === 0) return [400, { error: "没有匹配的发布平台" }] as any;
        const results = await publishToPlatforms(article, matched);
        const mapped = results.map((r, i) => ({ ...r, id: matched[i]?.id || r.platform }));
        return {
            success: results.some(r => r.status === "success"),
            total: results.length,
            succeeded: results.filter(r => r.status === "success").length,
            failed: results.filter(r => r.status === "failed").length,
            results: mapped
        };
    }, apiResultHandler);
}