/**
 * Coverage for the `emdash-plugin.jsonc` Zod schema.
 *
 * The schema is the authoring contract with plugin publishers. A regression
 * here means user-visible behaviour change in the field names, validation
 * rules, or error messages that publishers rely on. Tests are organised by
 * field so a future field add lands cleanly alongside its own test block.
 *
 * Where applicable, tests assert on the EXACT Zod issue path / message
 * because those strings surface in `emdash-plugin validate` output --
 * users see them, and silently changing them breaks anyone who built
 * tooling around the strings.
 */

import { describe, expect, it } from "vitest";

import {
	ArtifactFileSchema,
	ArtifactsSchema,
	AuthorSchema,
	LicenseSchema,
	ManifestSchema,
	RepoSchema,
	RequiresSchema,
	SECTION_KEYS,
	SectionsSchema,
	SecurityContactSchema,
} from "../src/manifest/schema.js";

describe("LicenseSchema", () => {
	it("accepts a typical SPDX expression", () => {
		expect(LicenseSchema.parse("MIT")).toBe("MIT");
		expect(LicenseSchema.parse("Apache-2.0")).toBe("Apache-2.0");
		expect(LicenseSchema.parse("MIT OR Apache-2.0")).toBe("MIT OR Apache-2.0");
	});

	it("rejects the empty string", () => {
		const result = LicenseSchema.safeParse("");
		expect(result.success).toBe(false);
	});

	it("rejects a whitespace-only license", () => {
		const result = LicenseSchema.safeParse("   ");
		expect(result.success).toBe(false);
	});

	it("rejects values over 256 characters", () => {
		const result = LicenseSchema.safeParse("A".repeat(257));
		expect(result.success).toBe(false);
	});
});

describe("AuthorSchema", () => {
	it("accepts the minimal name-only form", () => {
		expect(AuthorSchema.parse({ name: "Jane Doe" })).toEqual({ name: "Jane Doe" });
	});

	it("accepts name + url + email", () => {
		const author = {
			name: "Jane Doe",
			url: "https://example.com",
			email: "jane@example.com",
		};
		expect(AuthorSchema.parse(author)).toEqual(author);
	});

	it("rejects an empty name", () => {
		const result = AuthorSchema.safeParse({ name: "" });
		expect(result.success).toBe(false);
	});

	it("rejects unknown keys (strict mode)", () => {
		const result = AuthorSchema.safeParse({ name: "Jane", website: "https://example.com" });
		expect(result.success).toBe(false);
	});

	it("rejects a malformed URL", () => {
		const result = AuthorSchema.safeParse({ name: "Jane", url: "not-a-url" });
		expect(result.success).toBe(false);
	});

	it("rejects a malformed email", () => {
		const result = AuthorSchema.safeParse({ name: "Jane", email: "not-an-email" });
		expect(result.success).toBe(false);
	});
});

describe("SecurityContactSchema", () => {
	it("accepts an email-only contact", () => {
		expect(SecurityContactSchema.parse({ email: "security@example.com" })).toEqual({
			email: "security@example.com",
		});
	});

	it("accepts a url-only contact", () => {
		expect(SecurityContactSchema.parse({ url: "https://example.com/security" })).toEqual({
			url: "https://example.com/security",
		});
	});

	it("rejects an empty contact (no email or url)", () => {
		const result = SecurityContactSchema.safeParse({});
		expect(result.success).toBe(false);
		if (!result.success) {
			// The exact message users see at validate-time; pin it.
			expect(result.error.issues[0]?.message).toContain("at least one of `url` or `email`");
		}
	});
});

describe("RepoSchema", () => {
	it("accepts an https:// URL", () => {
		expect(RepoSchema.parse("https://github.com/example/plugin")).toBe(
			"https://github.com/example/plugin",
		);
	});

	it("rejects http:// URLs", () => {
		const result = RepoSchema.safeParse("http://github.com/example/plugin");
		expect(result.success).toBe(false);
	});

	it("rejects non-URL strings", () => {
		const result = RepoSchema.safeParse("not a url");
		expect(result.success).toBe(false);
	});
});

describe("RequiresSchema", () => {
	it("accepts env:* keys with semver-range values", () => {
		expect(RequiresSchema.parse({ "env:emdash": ">=1.0.0", "env:astro": ">=4.16" })).toEqual({
			"env:emdash": ">=1.0.0",
			"env:astro": ">=4.16",
		});
	});

	it("accepts caret, tilde, and AND-set ranges", () => {
		expect(
			RequiresSchema.parse({
				"env:astro": "^4.0.0",
				"env:emdash": ">=1.0.0 <2.0.0",
			}),
		).toBeTruthy();
		expect(RequiresSchema.parse({ "env:astro": "~4.16.0" })).toBeTruthy();
	});

	it("accepts forward-compat DID-shaped keys", () => {
		expect(RequiresSchema.parse({ "did:plc:abc123": "^1.0.0" })).toEqual({
			"did:plc:abc123": "^1.0.0",
		});
	});

	it("rejects keys that are neither env:* nor DID-shaped", () => {
		expect(RequiresSchema.safeParse({ astro: ">=4.16" }).success).toBe(false);
		expect(RequiresSchema.safeParse({ "env:": ">=4.16" }).success).toBe(false);
	});

	it("rejects values that aren't valid semver ranges", () => {
		expect(RequiresSchema.safeParse({ "env:astro": "not-a-range" }).success).toBe(false);
		expect(RequiresSchema.safeParse({ "env:astro": "" }).success).toBe(false);
		expect(RequiresSchema.safeParse({ "env:astro": ">=" }).success).toBe(false);
	});
});

describe("ArtifactFileSchema", () => {
	it("accepts a bare file ref", () => {
		expect(ArtifactFileSchema.safeParse({ file: "./icon.png" }).success).toBe(true);
	});

	it("accepts a file ref with a lang tag", () => {
		expect(ArtifactFileSchema.safeParse({ file: "./icon-fr.png", lang: "fr" }).success).toBe(true);
	});

	it("rejects an empty file path", () => {
		expect(ArtifactFileSchema.safeParse({ file: "" }).success).toBe(false);
	});

	it("rejects unknown keys (e.g. a hand-written url/checksum)", () => {
		const result = ArtifactFileSchema.safeParse({
			file: "./icon.png",
			url: "https://example.com/icon.png",
		});
		expect(result.success).toBe(false);
	});
});

describe("ArtifactsSchema", () => {
	it("accepts icon and banner as single file refs", () => {
		const result = ArtifactsSchema.safeParse({
			icon: { file: "./icon.png" },
			banner: { file: "./banner.png" },
		});
		expect(result.success).toBe(true);
	});

	it("accepts screenshots as an array of file refs", () => {
		const result = ArtifactsSchema.safeParse({
			screenshots: [{ file: "./s1.png" }, { file: "./s2.png", lang: "de" }],
		});
		expect(result.success).toBe(true);
	});

	it("rejects a single (non-array) screenshots value", () => {
		const result = ArtifactsSchema.safeParse({ screenshots: { file: "./s1.png" } });
		expect(result.success).toBe(false);
	});

	it("rejects an empty screenshots array", () => {
		expect(ArtifactsSchema.safeParse({ screenshots: [] }).success).toBe(false);
	});

	it("rejects more than eight screenshots", () => {
		const screenshots = Array.from({ length: 9 }, (_, i) => ({ file: `./s${i}.png` }));
		expect(ArtifactsSchema.safeParse({ screenshots }).success).toBe(false);
	});

	it("rejects the legacy singular `screenshot` key", () => {
		const result = ArtifactsSchema.safeParse({ screenshot: [{ file: "./s1.png" }] });
		expect(result.success).toBe(false);
	});
});

describe("SectionsSchema", () => {
	it("accepts an inline string for each of the five keys", () => {
		for (const key of SECTION_KEYS) {
			const result = SectionsSchema.safeParse({ [key]: "# Heading\n\nSome **markdown**." });
			expect(result.success, key).toBe(true);
		}
	});

	it("accepts a { file } ref for each of the five keys", () => {
		for (const key of SECTION_KEYS) {
			const result = SectionsSchema.safeParse({ [key]: { file: "./docs/x.md" } });
			expect(result.success, key).toBe(true);
		}
	});

	it("accepts a mix of inline and file refs", () => {
		const result = SectionsSchema.safeParse({
			description: "inline",
			installation: { file: "./docs/install.md" },
		});
		expect(result.success).toBe(true);
	});

	it("treats every key as optional (empty object is valid)", () => {
		expect(SectionsSchema.safeParse({}).success).toBe(true);
	});

	it("rejects an unknown section key", () => {
		const result = SectionsSchema.safeParse({ instalation: "typo" });
		expect(result.success).toBe(false);
	});

	it("rejects an extra key in a file ref", () => {
		const result = SectionsSchema.safeParse({ description: { file: "./x.md", lang: "en" } });
		expect(result.success).toBe(false);
	});

	it("rejects an inline section over the 20000-byte cap while under the grapheme cap", () => {
		// A 25-byte family emoji (one grapheme via ZWJ). 1000 of them = 25000
		// bytes (over the byte cap) but only 1000 graphemes (under the
		// grapheme cap), so the byte check is the one that fires.
		const result = SectionsSchema.safeParse({ description: "👨‍👩‍👧‍👦".repeat(1000) });
		expect(result.success).toBe(false);
		if (!result.success) {
			expect(result.error.issues.some((i) => i.message.includes("byte"))).toBe(true);
		}
	});

	it("rejects an inline section over the 2000-grapheme cap while under the byte cap", () => {
		// 2001 emoji. Each emoji is one grapheme but several UTF-8 bytes, so
		// this trips the grapheme cap without reaching 20000 bytes (2001 * 4
		// = 8004 bytes).
		const result = SectionsSchema.safeParse({ faq: "😀".repeat(2001) });
		expect(result.success).toBe(false);
		if (!result.success) {
			expect(result.error.issues.some((i) => i.message.includes("grapheme"))).toBe(true);
		}
	});

	it("accepts an inline section exactly at the grapheme cap", () => {
		// 2000 ASCII chars: 2000 graphemes (at the cap) and 2000 bytes (under
		// the byte cap). Both limits satisfied.
		const result = SectionsSchema.safeParse({ changelog: "a".repeat(2000) });
		expect(result.success).toBe(true);
	});

	it("rejects an inline section one grapheme over the cap", () => {
		const result = SectionsSchema.safeParse({ changelog: "a".repeat(2001) });
		expect(result.success).toBe(false);
	});
});

describe("ManifestSchema (full document)", () => {
	const minimal = {
		slug: "my-plugin",
		version: "0.1.0",
		publisher: "example.com",
		license: "MIT",
		author: { name: "Jane Doe" },
		security: { email: "security@example.com" },
	};

	it("accepts the minimal required shape", () => {
		const result = ManifestSchema.safeParse(minimal);
		expect(result.success).toBe(true);
	});

	it("accepts a manifest with a release.artifacts block", () => {
		const result = ManifestSchema.safeParse({
			...minimal,
			release: {
				artifacts: {
					icon: { file: "./icon.png" },
					banner: { file: "./banner.png" },
					screenshots: [{ file: "./s1.png" }, { file: "./s2.png" }],
				},
			},
		});
		expect(result.success).toBe(true);
	});

	it("accepts a top-level sections block (inline + file refs)", () => {
		const result = ManifestSchema.safeParse({
			...minimal,
			sections: {
				description: "Long description.",
				installation: { file: "./docs/install.md" },
			},
		});
		expect(result.success).toBe(true);
	});

	it("rejects an unknown section key at the top level", () => {
		const result = ManifestSchema.safeParse({
			...minimal,
			sections: { changelog: "ok", bogus: "nope" },
		});
		expect(result.success).toBe(false);
	});

	it("rejects an unknown key inside release", () => {
		const result = ManifestSchema.safeParse({
			...minimal,
			release: { artifacts: { icon: { file: "./icon.png" } }, bogus: true },
		});
		expect(result.success).toBe(false);
	});

	it("accepts a manifest with $schema for IDE completion", () => {
		const result = ManifestSchema.safeParse({
			...minimal,
			$schema: "./node_modules/@emdash-cms/plugin-cli/schemas/emdash-plugin.schema.json",
		});
		expect(result.success).toBe(true);
	});

	it("accepts the multi-author/multi-contact form", () => {
		const result = ManifestSchema.safeParse({
			slug: "my-plugin",
			version: "0.1.0",
			publisher: "example.com",
			license: "MIT",
			authors: [{ name: "Alice" }, { name: "Bob" }],
			securityContacts: [{ email: "alice@example.com" }, { url: "https://example.com/security" }],
		});
		expect(result.success).toBe(true);
	});

	it("rejects mixing `author` and `authors`", () => {
		const result = ManifestSchema.safeParse({
			...minimal,
			authors: [{ name: "Bob" }],
		});
		expect(result.success).toBe(false);
		if (!result.success) {
			expect(
				result.error.issues.some((i) => i.message.includes("both `author` and `authors`")),
			).toBe(true);
		}
	});

	it("rejects mixing `security` and `securityContacts`", () => {
		const result = ManifestSchema.safeParse({
			...minimal,
			securityContacts: [{ email: "b@example.com" }],
		});
		expect(result.success).toBe(false);
		if (!result.success) {
			expect(
				result.error.issues.some((i) =>
					i.message.includes("both `security` and `securityContacts`"),
				),
			).toBe(true);
		}
	});

	it("requires either `author` or `authors`", () => {
		const { author: _author, ...withoutAuthor } = minimal;
		const result = ManifestSchema.safeParse(withoutAuthor);
		expect(result.success).toBe(false);
		if (!result.success) {
			expect(result.error.issues.some((i) => i.message.includes("`author: { ... }`"))).toBe(true);
		}
	});

	it("requires either `security` or `securityContacts`", () => {
		const { security: _security, ...withoutSecurity } = minimal;
		const result = ManifestSchema.safeParse(withoutSecurity);
		expect(result.success).toBe(false);
		if (!result.success) {
			expect(result.error.issues.some((i) => i.message.includes("`security: { ... }`"))).toBe(true);
		}
	});

	it("rejects unknown top-level keys (strict mode catches typos)", () => {
		const result = ManifestSchema.safeParse({
			...minimal,
			licens: "MIT", // typo
		});
		expect(result.success).toBe(false);
	});

	it("rejects an empty authors array (lexicon requires >= 1)", () => {
		const { author: _author, ...rest } = minimal;
		const result = ManifestSchema.safeParse({
			...rest,
			authors: [],
		});
		expect(result.success).toBe(false);
	});

	it("rejects more than 32 authors (lexicon cap)", () => {
		const authors = Array.from({ length: 33 }, (_, i) => ({ name: `Author ${i}` }));
		const { author: _author, ...rest } = minimal;
		const result = ManifestSchema.safeParse({
			...rest,
			authors,
		});
		expect(result.success).toBe(false);
	});

	it("rejects more than 5 keywords (FAIR convention)", () => {
		const result = ManifestSchema.safeParse({
			...minimal,
			keywords: ["a", "b", "c", "d", "e", "f"],
		});
		expect(result.success).toBe(false);
	});

	it("accepts a full populated manifest", () => {
		const result = ManifestSchema.safeParse({
			$schema: "./node_modules/@emdash-cms/plugin-cli/schemas/emdash-plugin.schema.json",
			slug: "gallery",
			version: "0.1.0",
			publisher: "example.com",
			license: "MIT",
			author: {
				name: "Jane Doe",
				url: "https://example.com",
				email: "jane@example.com",
			},
			security: {
				email: "security@example.com",
				url: "https://example.com/security",
			},
			name: "Gallery",
			description: "Image gallery block for EmDash.",
			keywords: ["gallery", "images", "media"],
			repo: "https://github.com/emdash-cms/plugin-gallery",
			release: { requires: { "env:emdash": ">=1.0.0", "env:astro": ">=4.16" } },
			capabilities: ["content:read"],
			storage: { events: { indexes: ["timestamp"] } },
		});
		expect(result.success).toBe(true);
	});

	it("accepts a manifest with release-level requires", () => {
		const result = ManifestSchema.safeParse({
			...minimal,
			release: { requires: { "env:astro": ">=4.16" } },
		});
		expect(result.success).toBe(true);
	});

	it("rejects a manifest with an invalid requires range", () => {
		const result = ManifestSchema.safeParse({
			...minimal,
			release: { requires: { "env:astro": "not-a-range" } },
		});
		expect(result.success).toBe(false);
	});
});