import { assert, assertEquals } from "jsr:@std/assert@1";
import { parse } from "jsr:@std/yaml@1";

type Mapping = Record<string, unknown>;

const mapping = (value: unknown, at: string): Mapping => {
  assert(
    typeof value === "object" && value !== null && !Array.isArray(value),
    at,
  );
  return value as Mapping;
};

const sequence = (value: unknown, at: string): Mapping[] => {
  assert(Array.isArray(value), at);
  return value.map((entry, index) => mapping(entry, `${at}[${index}]`));
};

async function yaml(path: string): Promise<Mapping> {
  return mapping(parse(await Deno.readTextFile(path)), path);
}

async function yamlFiles(directory = "."): Promise<string[]> {
  const result: string[] = [];
  for await (const entry of Deno.readDir(directory)) {
    if (entry.name === ".git" || entry.name === ".superpowers") continue;
    const path = directory === "." ? entry.name : `${directory}/${entry.name}`;
    if (entry.isDirectory) result.push(...await yamlFiles(path));
    if (entry.isFile && /\.ya?ml$/.test(entry.name)) result.push(path);
  }
  return result;
}

Deno.test("all committed YAML parses", async () => {
  const files = await yamlFiles();
  assert(files.length > 0);
  for (const file of files) await yaml(file);
});

Deno.test("the action exposes only the master key and scopes it to preparation", async () => {
  const action = await yaml("action.yml");
  assertEquals(Object.keys(mapping(action.inputs, "inputs")), ["master-key"]);
  const steps = sequence(mapping(action.runs, "runs").steps, "runs.steps");
  const checkout = steps.find((step) => step.uses === "actions/checkout@v4");
  const prepare = steps.find((step) => step.id === "prepare");
  const agent = steps.find((step) => step.id === "agent");
  const post = steps.find((step) => step.id === "post");
  const source = steps.find((step) => step.id === "source");
  assert(checkout && source && prepare && agent && post);
  assertEquals(
    mapping(checkout.with, "checkout.with").token,
    "${{ gitea.token }}",
  );
  assertEquals(
    mapping(prepare.env, "prepare.env").BOT_AGENTS_MASTER_KEY,
    "${{ inputs.master-key }}",
  );
  assertEquals(JSON.stringify(agent).includes("BOT_AGENTS_MASTER_KEY"), false);
  assertEquals(JSON.stringify(post).includes("BOT_AGENTS_MASTER_KEY"), false);
  assertEquals(
    mapping(agent.env, "agent.env").GITEA_TOKEN,
    "${{ gitea.token }}",
  );
  assert(String(post.if).includes("always()"));
  for (const step of [prepare, agent, post]) {
    assert(String(step.run).includes("steps.source.outputs.path"));
  }
});

Deno.test("the repository uses its trusted main action", async () => {
  const workflow = await yaml(".gitea/workflows/agents.yml");
  const job = mapping(mapping(workflow.jobs, "jobs").agent, "jobs.agent");
  const permissions = mapping(job.permissions, "jobs.agent.permissions");
  assertEquals(permissions, {
    code: "write",
    issues: "write",
    "pull-requests": "write",
  });
  const steps = sequence(job.steps, "jobs.agent.steps");
  const local = steps.findIndex((step) => step.uses === "./");
  assertEquals(local, -1);
  const trusted = steps.findIndex((step) =>
    step.uses === "https://git.capsulizers.com/commons/bot-agents@main"
  );
  assert(trusted >= 0);
  assertEquals(
    mapping(steps[trusted].with, "trusted.with")["master-key"],
    "${{ secrets.BOT_AGENTS_MASTER_KEY }}",
  );
  assertEquals(JSON.stringify(workflow).includes("gitea.actor != 'bot'"), true);
});

Deno.test("CI checks every phase and the root isolation suite", async () => {
  const workflow = await yaml(".gitea/workflows/check.yml");
  const job = mapping(mapping(workflow.jobs, "jobs").deno, "jobs.deno");
  const commands = sequence(job.steps, "jobs.deno.steps")
    .map((step) => typeof step.run === "string" ? step.run : "")
    .join("\n");
  for (const entrypoint of ["prepare.ts", "run.ts", "post.ts"]) {
    assert(commands.includes(entrypoint), entrypoint);
  }
  assert(commands.includes("deno test --allow-all"));
});

Deno.test("uses the standard Skills installer without custom discovery", async () => {
  const runner = await Deno.readTextFile("run.ts");
  assert(runner.includes("skills add obra/superpowers"));
  try {
    await Deno.stat("superpowers.ts");
    assert(false, "superpowers.ts should be removed");
  } catch (error) {
    assert(error instanceof Deno.errors.NotFound);
  }
});