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

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

const loadSource = (...parts) => {
    const filePath = path.join(__dirname, "..", "..", ...parts);
    return fs.readFileSync(filePath, "utf8");
};

const loadBreadcrumbSource = () => loadSource("components", "breadcrumbs.js");

const loadFactorySource = () =>
    loadSource("lib", "routing", "breadcrumbRendererFactories.js");

test("breadcrumbs/factory module includes expected mapped route definitions", async () => {
    const source = loadFactorySource();

    assert.strictEqual(
        source.includes("export const createSimpleRouteRenderers ="),
        true,
        "Expected simple route renderer factory export"
    );

    assert.strictEqual(
        source.includes("export const createSimpleLinkTextPairRenderers ="),
        true,
        "Expected link-text pair renderer factory export"
    );

    assert.strictEqual(
        source.includes("export const createSimpleMyPortalRouteRenderers ="),
        true,
        "Expected my-portal route renderer factory export"
    );

    assert.strictEqual(
        source.includes('"/addresssearchresults": () => ('),
        true,
        "Expected /addresssearchresults to be mapped in createSimpleLinkTextPairRenderers"
    );

    assert.strictEqual(
        source.includes('"/advancedsearchresults": () => ('),
        true,
        "Expected /advancedsearchresults to be mapped in createSimpleLinkTextPairRenderers"
    );

    assert.strictEqual(
        source.includes('"/myportal/searchresults": () => ('),
        true,
        "Expected /myportal/searchresults to be mapped in createSimpleMyPortalRouteRenderers"
    );

    assert.strictEqual(
        source.includes('"/myportal/viewall": () =>'),
        true,
        "Expected /myportal/viewall to be mapped in createSimpleMyPortalRouteRenderers"
    );

    assert.strictEqual(
        source.includes('"/myportal/advancedsearchresults": () => ('),
        true,
        "Expected /myportal/advancedsearchresults to be mapped in createSimpleMyPortalRouteRenderers"
    );

    assert.strictEqual(
        source.includes('"/myportal/addresssearchresults": () => ('),
        true,
        "Expected /myportal/addresssearchresults to be mapped in createSimpleMyPortalRouteRenderers"
    );
});

test("breadcrumbs/component composes mapped routes via imported factories and shared resolver", async () => {
    const source = loadBreadcrumbSource();

    assert.strictEqual(
        source.includes('from "../lib/routing/breadcrumbRouteMaps"'),
        true,
        "Expected breadcrumbs to import shared breadcrumb route-map helper module"
    );

    assert.strictEqual(
        source.includes('from "../lib/routing/breadcrumbRendererFactories"'),
        true,
        "Expected breadcrumbs to import breadcrumb renderer factories"
    );

    assert.strictEqual(
        /createSimpleRouteRenderers/.test(source),
        true,
        "Expected breadcrumbs to reference createSimpleRouteRenderers"
    );

    assert.strictEqual(
        /createSimpleLinkTextPairRenderers/.test(source),
        true,
        "Expected breadcrumbs to reference createSimpleLinkTextPairRenderers"
    );

    assert.strictEqual(
        /createSimpleMyPortalRouteRenderers/.test(source),
        true,
        "Expected breadcrumbs to reference createSimpleMyPortalRouteRenderers"
    );

    assert.strictEqual(
        /const\s+simpleRouteRenderersByPath\s*=\s*createSimpleRouteRenderers\s*\(/.test(
            source
        ),
        true,
        "Expected breadcrumbs to build simple route renderers from factory"
    );

    assert.strictEqual(
        /const\s+simpleLinkTextPairRenderersByPath\s*=\s*createSimpleLinkTextPairRenderers\s*\(/.test(
            source
        ),
        true,
        "Expected breadcrumbs to build link-text pair renderers from factory"
    );

    assert.strictEqual(
        /const\s+simpleMyPortalRouteRenderersByPath\s*=\s*createSimpleMyPortalRouteRenderers\s*\(/.test(
            source
        ),
        true,
        "Expected breadcrumbs to build my-portal route renderers from factory"
    );

    assert.strictEqual(
        /const\s+mappedRouteRendererMaps\s*=\s*buildBreadcrumbRendererMaps\s*\(/.test(
            source
        ),
        true,
        "Expected grouped mapped route renderer map composition to use helper builder"
    );

    assert.strictEqual(
        /return\s+resolveMappedRouteRendererByMaps\s*\(\s*path\s*,\s*mappedRouteRendererMaps\s*\)/.test(
            source
        ),
        true,
        "Expected resolver to delegate to shared route-map resolver helper"
    );

    assert.strictEqual(
        /const\s+resolveMappedRouteRenderer\s*=\s*\(\s*path\s*\)\s*=>/.test(
            source
        ),
        true,
        "Expected unified mapped route resolver helper to exist"
    );

    assert.strictEqual(
        /const\s+renderMappedRoute\s*=\s*\(\s*path\s*,\s*resolver\s*=\s*resolveMappedRouteRenderer\s*\)\s*=>/.test(
            source
        ),
        true,
        "Expected reusable renderMappedRoute helper to exist"
    );

    assert.strictEqual(
        source.includes("{renderMappedRoute(pathname)}"),
        true,
        "Expected breadcrumb JSX to use single mapped route render invocation"
    );

    assert.strictEqual(
        source.includes('isPath("/myportal/advancedsearchresults")'),
        false,
        "Expected /myportal/advancedsearchresults explicit branch to be removed after mapping"
    );

    assert.strictEqual(
        source.includes('isPath("/myportal/addresssearchresults")'),
        false,
        "Expected /myportal/addresssearchresults explicit branch to be removed after mapping"
    );
});

test("breadcrumbs/map builder preserves route map ordering", async () => {
    const source = loadBreadcrumbSource();

    const mapBuilderCallIndex = source.indexOf(
        "const mappedRouteRendererMaps = buildBreadcrumbRendererMaps({"
    );

    assert.notStrictEqual(
        mapBuilderCallIndex,
        -1,
        "Expected grouped map builder call to exist"
    );

    const mapBuilderSlice = source.slice(
        mapBuilderCallIndex,
        mapBuilderCallIndex + 500
    );

    const simpleRouteOrderIndex = mapBuilderSlice.indexOf(
        "simpleRouteRenderersByPath"
    );
    const simpleLinkTextPairOrderIndex = mapBuilderSlice.indexOf(
        "simpleLinkTextPairRenderersByPath"
    );
    const simpleMyPortalOrderIndex = mapBuilderSlice.indexOf(
        "simpleMyPortalRouteRenderersByPath"
    );

    assert.strictEqual(
        simpleRouteOrderIndex >= 0 &&
            simpleLinkTextPairOrderIndex > simpleRouteOrderIndex &&
            simpleMyPortalOrderIndex > simpleLinkTextPairOrderIndex,
        true,
        "Expected map builder call to preserve explicit route-map ordering (simple -> link-text -> myportal)"
    );
});

test("breadcrumbs/dynamic callback branch remains explicit for myportal case incident route", async () => {
    const source = loadBreadcrumbSource();

    assert.strictEqual(
        source.includes('isPath("/myportal/case/id/[incident]")'),
        true,
        "Expected dynamic /myportal/case/id/[incident] breadcrumb branch to remain explicit"
    );

    assert.strictEqual(
        source.includes("router.back();"),
        true,
        "Expected callback-driven router.back() behavior to remain explicit"
    );
});

const run = async () => {
    let passed = 0;

    for (const currentTest of tests) {
        await currentTest.fn();
        passed += 1;
    }

    console.log(
        `Phase 22 breadcrumbs-route-map tests passed (${passed}/${tests.length}).`
    );
};

module.exports = run;

if (require.main === module) {
    run().catch((error) => {
        console.error(error);
        process.exit(1);
    });
}