"use strict";

const test = require("node:test");
const assert = require("node:assert/strict");

function loadPluginFresh() {
    const modulePath = require.resolve("./music_server_lan");
    delete require.cache[modulePath];
    return require("./music_server_lan");
}

function clearRuntimeEnv() {
    delete globalThis.env;
}

test.afterEach(() => {
    clearRuntimeEnv();
});

test("plugin.userVariables exposes public and lan base urls", () => {
    const plugin = loadPluginFresh();
    const keys = plugin.userVariables.map((item) => item.key);
    assert.deepEqual(keys, ["baseUrl", "lanBaseUrl", "accessToken"]);
});

test("recommend requests use lan base url when lan health probe succeeds", async () => {
    const plugin = loadPluginFresh();
    plugin.__clearTestState();
    plugin.__setConfigForTests({
        baseUrl: "http://64.83.43.123:18081",
        lanBaseUrl: "http://192.168.5.43:18081",
        accessToken: "",
    });

    const originalFetch = globalThis.fetch;
    const fetchCalls = [];
    globalThis.fetch = async (url, options) => {
        fetchCalls.push({ url, options });
        if (url === "http://192.168.5.43:18081/healthz") {
            return {
                ok: true,
                status: 200,
                text: async () => JSON.stringify({ status: "ok" }),
            };
        }
        if (url === "http://192.168.5.43:18081/mf/v1/recommend/tags") {
            return {
                ok: true,
                status: 200,
                text: async () =>
                    JSON.stringify({
                        pinned: [{ id: "all", title: "all" }],
                        data: [],
                    }),
            };
        }
        throw new Error(`Unexpected request: ${url}`);
    };

    try {
        const result = await plugin.getRecommendSheetTags();
        assert.equal(result.pinned[0].id, "all");
    } finally {
        globalThis.fetch = originalFetch;
    }

    assert.deepEqual(
        fetchCalls.map((entry) => entry.url),
        [
            "http://192.168.5.43:18081/healthz",
            "http://192.168.5.43:18081/mf/v1/recommend/tags",
        ],
    );
});

test("recommend requests fall back to public base url when lan health probe fails", async () => {
    const plugin = loadPluginFresh();
    plugin.__clearTestState();
    plugin.__setConfigForTests({
        baseUrl: "http://64.83.43.123:18081",
        lanBaseUrl: "http://192.168.5.43:18081",
        accessToken: "",
    });

    const originalFetch = globalThis.fetch;
    const fetchCalls = [];
    globalThis.fetch = async (url, options) => {
        fetchCalls.push({ url, options });
        if (url === "http://192.168.5.43:18081/healthz") {
            throw new Error("connect failed");
        }
        if (url === "http://64.83.43.123:18081/mf/v1/recommend/tags") {
            return {
                ok: true,
                status: 200,
                text: async () =>
                    JSON.stringify({
                        pinned: [{ id: "all", title: "all" }],
                        data: [],
                    }),
            };
        }
        throw new Error(`Unexpected request: ${url}`);
    };

    try {
        const result = await plugin.getRecommendSheetTags();
        assert.equal(result.pinned[0].id, "all");
    } finally {
        globalThis.fetch = originalFetch;
    }

    assert.deepEqual(
        fetchCalls.map((entry) => entry.url),
        [
            "http://192.168.5.43:18081/healthz",
            "http://64.83.43.123:18081/mf/v1/recommend/tags",
        ],
    );
});

test("getMediaSource joins relative stream url against lan base url after successful probe", async () => {
    const plugin = loadPluginFresh();
    plugin.__clearTestState();
    plugin.__setConfigForTests({
        baseUrl: "http://64.83.43.123:18081",
        lanBaseUrl: "http://192.168.5.43:18081",
        accessToken: "",
    });

    const originalFetch = globalThis.fetch;
    const fetchCalls = [];
    globalThis.fetch = async (url, options) => {
        fetchCalls.push({ url, options });
        if (url === "http://192.168.5.43:18081/healthz") {
            return {
                ok: true,
                status: 200,
                text: async () => JSON.stringify({ status: "ok" }),
            };
        }
        if (url === "http://192.168.5.43:18081/mf/v1/media/resolve") {
            return {
                ok: true,
                status: 200,
                text: async () =>
                    JSON.stringify({
                        stream: {
                            url: "/mf/v1/media/stream/token-1",
                        },
                        selected_source: {
                            quality: "super",
                        },
                    }),
            };
        }
        throw new Error(`Unexpected request: ${url}`);
    };

    try {
        const result = await plugin.getMediaSource({ id: "song-1" }, "high");
        assert.deepEqual(result, {
            url: "http://192.168.5.43:18081/mf/v1/media/stream/token-1",
            headers: {},
            quality: "super",
        });
    } finally {
        globalThis.fetch = originalFetch;
    }

    assert.deepEqual(
        fetchCalls.map((entry) => entry.url),
        [
            "http://192.168.5.43:18081/healthz",
            "http://192.168.5.43:18081/mf/v1/media/resolve",
        ],
    );
});