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

    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);
});

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

    const req = { method: "GET", query: { lpaid: "lpa-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);
});

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

    const req = {
        method: "GET",
        query: {
            appealType: "pinswg_planningappeals78s",
            caseReference: "CAS-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);
});

test("legacy myportal endpoint handlers remain present", async () => {
    const legacyFiles = [
        "pages/api/endpoint/getmycases_api.js",
        "pages/api/endpoint/getmylpacases_api.js",
        "pages/api/endpoint/getportalmoduledetails_api.js",
        "pages/api/endpoint/getmyrepresentations_api.js",
        "pages/api/endpoint/getawaitingsubmission_api.js"
    ];

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

test("active service layers now target grouped myportal routes", async () => {
    const portalSource = read("actions/services/portalDirectService.js");
    const caseSource = read("actions/services/caseDirectService.js");

    assert.match(portalSource, /\/api\/myportal\/get-my-cases/);
    assert.match(portalSource, /\/api\/myportal\/get-my-lpa-cases/);
    assert.match(caseSource, /\/api\/myportal\/get-portal-module-details/);
});

test("adopted service methods no longer target legacy endpoint URLs", async () => {
    const portalSource = read("actions/services/portalDirectService.js");
    const caseSource = read("actions/services/caseDirectService.js");

    assert.doesNotMatch(portalSource, /\/api\/endpoint\/getmycases_api/);
    assert.doesNotMatch(portalSource, /\/api\/endpoint\/getmylpacases_api/);
    assert.doesNotMatch(
        caseSource,
        /\/api\/endpoint\/getportalmoduledetails_api/
    );
});

test("runtime contract strings and parameter names are preserved where structurally testable", async () => {
    const portalSource = read("actions/services/portalDirectService.js");
    const caseSource = read("actions/services/caseDirectService.js");

    assert.match(portalSource, /loggedInUserId/);
    assert.match(portalSource, /lpaid/);
    assert.match(caseSource, /appealType/);
    assert.match(caseSource, /caseReference: encodeURI\(caseReference\)/);
});

test("excluded route families remain outside this myportal slice", async () => {
    const portalSource = read("actions/services/portalDirectService.js");
    const caseSource = read("actions/services/caseDirectService.js");
    const pageSource = read("pages/myportal/index.js");

    assert.match(portalSource, /\/api\/subscriptions\/get-watched-cases/);
    assert.match(pageSource, /getRepsFromBlob\(thisSession.user.id\)/);
    assert.match(
        pageSource,
        /getAwaitingSubmissionFromBlob\(thisSession.user.id\)/
    );
    assert.match(portalSource, /\/api\/endpoint\/getmyrepresentations_api/);
    assert.match(portalSource, /\/api\/endpoint\/getawaitingsubmission_api/);
    assert.doesNotMatch(caseSource, /\/api\/cases\/get-case"/);
    assert.doesNotMatch(caseSource, /\/api\/cases\/get-case-by-id/);
});

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();