const assert = require("assert");
const fs = require("fs");
const path = require("path");

const { loadModule, createRes } = require("../phase21/_shared.cjs");

const rootDir = path.resolve(__dirname, "..", "..");

const tests = [];
const test = (name, fn) => tests.push({ name, fn });

const read = (relativePath) =>
    fs.readFileSync(path.join(rootDir, relativePath), "utf8");

test("subscriptions get-watched-cases facade delegates to legacy handler", async () => {
    const calls = [];
    const mod = loadModule("pages/api/subscriptions/get-watched-cases.js", {
        legacyGetWatchedCasesHandler: async (req, res) => {
            calls.push({ req, res });
            return res.status(200).json({ ok: true, route: "get" });
        }
    });

    const req = { method: "GET", query: { loggedInUserId: "user-1" } };
    const res = createRes();
    await mod.default(req, res);

    assert.strictEqual(calls.length, 1);
    assert.strictEqual(calls[0].req, req);
    assert.strictEqual(calls[0].res, res);
    assert.strictEqual(res.state.statusCode, 200);
    assert.deepStrictEqual(JSON.parse(JSON.stringify(res.state.jsonBody)), {
        ok: true,
        route: "get"
    });
});

test("subscriptions create-watched-case facade delegates to legacy handler", async () => {
    const calls = [];
    const mod = loadModule("pages/api/subscriptions/create-watched-case.js", {
        legacyCreateWatchedCaseHandler: async (req, res) => {
            calls.push({ req, res });
            return res.status(200).json({ ok: true, route: "create" });
        }
    });

    const req = {
        method: "POST",
        body: {
            "pinswg_WatchedCase@odata.bind": "/incidents(inc-1)",
            "pinswg_Contact@odata.bind": "/contacts(con-1)"
        }
    };
    const res = createRes();
    await mod.default(req, res);

    assert.strictEqual(calls.length, 1);
    assert.strictEqual(calls[0].req, req);
    assert.strictEqual(calls[0].res, res);
    assert.strictEqual(res.state.statusCode, 200);
    assert.deepStrictEqual(JSON.parse(JSON.stringify(res.state.jsonBody)), {
        ok: true,
        route: "create"
    });
});

test("subscriptions delete-watched-case facade delegates to legacy handler", async () => {
    const calls = [];
    const mod = loadModule("pages/api/subscriptions/delete-watched-case.js", {
        legacyDeleteWatchedCaseHandler: async (req, res) => {
            calls.push({ req, res });
            return res.status(200).json({ ok: true, route: "delete" });
        }
    });

    const req = { method: "DELETE", query: { watchedCaseID: "watch-1" } };
    const res = createRes();
    await mod.default(req, res);

    assert.strictEqual(calls.length, 1);
    assert.strictEqual(calls[0].req, req);
    assert.strictEqual(calls[0].res, res);
    assert.strictEqual(res.state.statusCode, 200);
    assert.deepStrictEqual(JSON.parse(JSON.stringify(res.state.jsonBody)), {
        ok: true,
        route: "delete"
    });
});

test("subscriptions get-watched-cases-proxy facade delegates to legacy handler", async () => {
    const calls = [];
    const mod = loadModule(
        "pages/api/subscriptions/get-watched-cases-proxy.js",
        {
            legacyGetWatchedCasesProxyHandler: async (req, res) => {
                calls.push({ req, res });
                return res.status(200).json({ ok: true, route: "proxy-get" });
            }
        }
    );

    const req = { method: "GET", query: { loggedInUserId: "user-2" } };
    const res = createRes();
    await mod.default(req, res);

    assert.strictEqual(calls.length, 1);
    assert.strictEqual(calls[0].req, req);
    assert.strictEqual(calls[0].res, res);
    assert.strictEqual(res.state.statusCode, 200);
    assert.deepStrictEqual(JSON.parse(JSON.stringify(res.state.jsonBody)), {
        ok: true,
        route: "proxy-get"
    });
});

test("legacy watched-case endpoint files remain present", async () => {
    const legacyFiles = [
        "pages/api/endpoint/getwatchedcases_api.js",
        "pages/api/endpoint/getwatchedcasesproxy_api.js",
        "pages/api/endpoint/createwatchedcases_api.js",
        "pages/api/endpoint/deletewatchedcases_api.js"
    ];

    legacyFiles.forEach((filePath) => {
        assert.strictEqual(
            fs.existsSync(path.join(rootDir, filePath)),
            true,
            filePath
        );
    });
});

test("portalDirectService watched-case methods now target subscriptions facade routes", async () => {
    const source = read("actions/services/portalDirectService.js");

    assert.match(source, /\/api\/subscriptions\/get-watched-cases/);
    assert.match(source, /\/api\/subscriptions\/get-watched-cases-proxy/);
    assert.match(source, /\/api\/subscriptions\/create-watched-case/);
    assert.match(source, /\/api\/subscriptions\/delete-watched-case/);
});

test("portalDirectService no longer targets legacy watched-case routes for adopted methods", async () => {
    const source = read("actions/services/portalDirectService.js");

    assert.doesNotMatch(source, /\/api\/endpoint\/getwatchedcases_api/);
    assert.doesNotMatch(source, /\/api\/endpoint\/getwatchedcasesproxy_api/);
    assert.doesNotMatch(source, /\/api\/endpoint\/createwatchedcases_api/);
    assert.doesNotMatch(source, /\/api\/endpoint\/deletewatchedcases_api/);
});

test("portalDirectService still preserves watched-case runtime contracts around inputs", async () => {
    const source = read("actions/services/portalDirectService.js");

    assert.match(source, /loggedInUserId/);
    assert.match(source, /watchedCaseID/);
    assert.match(source, /method:\s*"post"/);
});

test("delete watched-case proxy route remains outside the grouped subscriptions pilot scope", async () => {
    const source = read("actions/services/portalDirectService.js");

    assert.doesNotMatch(source, /deletewatchedcasesproxy_api/);
    assert.strictEqual(
        fs.existsSync(
            path.join(
                rootDir,
                "pages/api/endpoint/deletewatchedcasesproxy_api.js"
            )
        ),
        true
    );
});

async function run() {
    let failures = 0;

    for (const { name, fn } of tests) {
        try {
            await fn();
            console.log(`✓ ${name}`);
        } catch (error) {
            failures += 1;
            console.error(`✗ ${name}`);
            console.error(error);
        }
    }

    if (failures > 0) {
        process.exit(1);
    }
}

run();