import { readFileSync } from "node:fs";
import { resolve } from "node:path";
import { describe, expect, it } from "vitest";

describe("production deploy workflow", () => {
	const workflow = readFileSync(
		resolve(process.cwd(), ".gitea/workflows/deploy.yaml"),
		"utf8",
	);

	it("preserves the Next.js incremental build cache", () => {
		// May clear .next/types or .next/dev, but must not wipe the whole .next tree.
		expect(workflow).not.toMatch(/rm\s+-rf\s+\.next(?:\s|$)/);
		expect(workflow).toContain("rm -rf .output dist .next/types .next/dev");
		expect(workflow).toContain("pnpm install --frozen-lockfile");
		// Production builds must validate env (AUTH_SECRET, DATABASE_URL, …).
		expect(workflow).not.toContain("SKIP_ENV_VALIDATION=1");
	});

	it("reclaims ownership before git reset so www-data files can be overwritten", () => {
		expect(workflow).toContain('sudo chown -R "$' + "{DEPLOY_USER}:" + '$' + '{DEPLOY_GROUP}"');
		const reclaimAt = workflow.indexOf(
			'sudo chown -R "$' + "{DEPLOY_USER}:" + '$' + '{DEPLOY_GROUP}"',
		);
		const resetAt = workflow.indexOf("git reset --hard origin/main");
		expect(reclaimAt).toBeGreaterThan(-1);
		expect(resetAt).toBeGreaterThan(reclaimAt);
	});

	it("nuclear-replaces src/ and clears sticky bits without scanning every path", () => {
		expect(workflow).toContain("rm -rf src");
		expect(workflow).toContain("git checkout -f HEAD -- src");
		expect(workflow).toContain("no-skip-worktree");
		expect(workflow).toContain("no-assume-unchanged");
		expect(workflow).toContain("Verified src/ matches HEAD");
		expect(workflow).toContain("git ls-files -v");
		expect(workflow).not.toContain("git ls-files -z");
		expect(workflow).toContain("pnpm typecheck");
	});

	it("does not override onlyBuiltDependencies (uses pnpm-workspace.yaml)", () => {
		expect(workflow).not.toContain("PNPM_CONFIG_ONLY_BUILT_DEPENDENCIES");
	});

	it("runs typecheck and tests before build", () => {
		expect(workflow).toContain("pnpm typecheck");
		expect(workflow).toContain("pnpm test");
		// Scope to the deploy job: the release job's documentation body also
		// mentions these commands, which must not affect this contract.
		const deployJob = workflow.slice(workflow.indexOf("\n  deploy:"));
		const typecheckAt = deployJob.indexOf("pnpm typecheck");
		const testAt = deployJob.indexOf("pnpm test");
		const buildAt = deployJob.indexOf("pnpm build");
		expect(typecheckAt).toBeGreaterThan(-1);
		expect(testAt).toBeGreaterThan(typecheckAt);
		expect(buildAt).toBeGreaterThan(testAt);
	});

	it("exports APP_VERSION from git for Sentry releases", () => {
		expect(workflow).toContain('export APP_VERSION="$(git rev-parse --short HEAD)"');
		expect(workflow).toContain(
			'export NEXT_PUBLIC_APP_VERSION="$' + "{APP_VERSION}\"",
		);
	});

	it("runs an HTTP health check before declaring deploy success", () => {
		expect(workflow).toContain("/api/health");
		expect(workflow).toContain('"database":true');
		const deployJob = workflow.slice(workflow.indexOf("\n  deploy:"));
		const startAt = deployJob.indexOf("systemctl start atom-nexst.service");
		const healthAt = deployJob.indexOf("/api/health");
		const successAt = deployJob.indexOf("--- Deployed successfully ---");
		expect(startAt).toBeGreaterThan(-1);
		expect(healthAt).toBeGreaterThan(startAt);
		expect(successAt).toBeGreaterThan(healthAt);
	});
});