import { readFileSync } from "node:fs";
import { describe, expect, it } from "vitest";
import {
  filterSparseMissingOxlintTargets,
  shouldPrepareExtensionPackageBoundaryArtifacts,
} from "../../scripts/run-oxlint.mjs";

describe("run-oxlint", () => {
  it("prepares extension package boundary artifacts for normal lint runs", () => {
    expect(shouldPrepareExtensionPackageBoundaryArtifacts([])).toBe(true);
    expect(shouldPrepareExtensionPackageBoundaryArtifacts(["src/index.ts"])).toBe(true);
    expect(shouldPrepareExtensionPackageBoundaryArtifacts(["--type-aware"])).toBe(true);
  });

  it("skips artifact preparation for metadata-only oxlint commands", () => {
    expect(shouldPrepareExtensionPackageBoundaryArtifacts(["--help"])).toBe(false);
    expect(shouldPrepareExtensionPackageBoundaryArtifacts(["--version"])).toBe(false);
    expect(shouldPrepareExtensionPackageBoundaryArtifacts(["--print-config"])).toBe(false);
    expect(shouldPrepareExtensionPackageBoundaryArtifacts(["--rules"])).toBe(false);
  });

  it("does not run package-boundary artifact prep twice in pnpm check", () => {
    const packageJson = JSON.parse(readFileSync("package.json", "utf8")) as {
      scripts: Record<string, string>;
    };
    const shardedLintRunner = readFileSync("scripts/run-oxlint-shards.mjs", "utf8");

    expect(packageJson.scripts.check).toBe("node scripts/check.mjs");
    expect(packageJson.scripts.lint).toBe("node scripts/run-oxlint-shards.mjs");
    expect(packageJson.scripts.check).not.toContain(
      "node scripts/prepare-extension-package-boundary-artifacts.mjs",
    );
    expect(shardedLintRunner).toContain("prepare-extension-package-boundary-artifacts.mjs");
    expect(shardedLintRunner).toContain('OPENCLAW_OXLINT_SKIP_PREPARE: "1"');
  });

  it("lets dev update preflight run oxlint shards serially", () => {
    const shardedLintRunner = readFileSync("scripts/run-oxlint-shards.mjs", "utf8");

    expect(shardedLintRunner).toContain("OPENCLAW_OXLINT_SHARDS_SERIAL");
    expect(shardedLintRunner).toContain("runShardsSerial");
  });

  it("filters tracked targets missing from sparse checkouts", () => {
    const result = filterSparseMissingOxlintTargets(
      ["--tsconfig", "config/tsconfig/oxlint.core.json", "src", "ui", "packages", "--threads=1"],
      {
        fileExists: (target: string) => target.endsWith("/src"),
        isSparseCheckoutEnabled: () => true,
        isTrackedPath: ({ target }: { target: string }) => target === "ui" || target === "packages",
      },
    );

    expect(result).toEqual({
      args: ["--tsconfig", "config/tsconfig/oxlint.core.json", "src", "--threads=1"],
      hadExplicitTargets: true,
      remainingExplicitTargets: 1,
      skippedTargets: ["ui", "packages"],
      skippedConfigs: [],
    });
  });

  it("filters tracked tsconfig files missing from sparse checkouts", () => {
    const result = filterSparseMissingOxlintTargets(
      ["--tsconfig", "config/tsconfig/oxlint.core.json", "src"],
      {
        fileExists: (target: string) => target.endsWith("/src"),
        isSparseCheckoutEnabled: () => true,
        isTrackedPath: ({ target }: { target: string }) =>
          target === "config/tsconfig/oxlint.core.json",
      },
    );

    expect(result).toEqual({
      args: ["src"],
      hadExplicitTargets: true,
      remainingExplicitTargets: 1,
      skippedTargets: [],
      skippedConfigs: ["config/tsconfig/oxlint.core.json"],
    });
  });

  it("keeps missing untracked oxlint targets so typos still fail", () => {
    const result = filterSparseMissingOxlintTargets(["src", "typo"], {
      fileExists: (target: string) => target.endsWith("/src"),
      isSparseCheckoutEnabled: () => true,
      isTrackedPath: () => false,
    });

    expect(result).toMatchObject({
      args: ["src", "typo"],
      remainingExplicitTargets: 2,
      skippedTargets: [],
      skippedConfigs: [],
    });
  });
});