import { randomUUID } from "node:crypto";
import { existsSync, readFileSync } from "node:fs";
import { runCommand } from "./command";
import { type UniDeskConfig, repoRoot, rootPath } from "./config";
import { startJob } from "./jobs";
import { coreInternalFetch } from "./microservices";

const d601ProviderId = "D601";
const d601Kubeconfig = "/etc/rancher/k3s/k3s.yaml";
const tektonPipelineVersion = "v1.12.0";
const tektonTriggersVersion = "v0.34.0";
const tektonPipelineReleaseUrl = `https://infra.tekton.dev/tekton-releases/pipeline/previous/${tektonPipelineVersion}/release.yaml`;
const tektonTriggersReleaseUrl = `https://infra.tekton.dev/tekton-releases/triggers/previous/${tektonTriggersVersion}/release.yaml`;
const tektonTriggersInterceptorsUrl = `https://infra.tekton.dev/tekton-releases/triggers/previous/${tektonTriggersVersion}/interceptors.yaml`;
const providerGatewayWsEgressProxyUrl = "http://127.0.0.1:18789";
const ciCodeQueueImage = "unidesk-code-queue:dev";
const ciRuntimeImages = [
  "rancher/mirrored-pause:3.6",
  "rancher/mirrored-library-busybox:1.36.1",
  "cgr.dev/chainguard/busybox@sha256:19f02276bf8dbdd62f069b922f10c65262cc34b710eea26ff928129a736be791",
  "ghcr.io/tektoncd/pipeline/entrypoint-bff0a22da108bc2f16c818c97641a296:v1.12.0",
  "ghcr.io/tektoncd/pipeline/workingdirinit-0c558922ec6a1b739e550e349f2d5fc1:v1.12.0",
  "ghcr.io/tektoncd/pipeline/nop-8eac7c133edad5df719dc37b36b62482:v1.12.0",
  "ghcr.io/tektoncd/pipeline/events-a9042f7efb0cbade2a868a1ee5ddd52c:v1.12.0",
  "ghcr.io/tektoncd/triggers/eventlistenersink-7ad1faa98cddbcb0c24990303b220bb8:v0.34.0",
  "oven/bun:1-debian",
  "alpine/git:2.45.2",
  ciCodeQueueImage,
];

interface CiOptions {
  repoUrl: string;
  revision: string;
  waitMs: number;
}

interface CiDevE2EOptions {
  repoUrl: string;
  desiredRef: string;
  deployCommit: string;
  environment: "dev";
  scriptRepo: string;
  scriptPath: string;
  scriptTimeoutMs: number;
  services: Array<{ id: string; commitId: string; repo: string }>;
  runId: string;
  keepNamespace: boolean;
  waitMs: number;
}

interface DispatchResult {
  ok: boolean;
  taskId: string | null;
  status: string | null;
  stdout: string;
  stderr: string;
  exitCode: number | null;
  raw: unknown;
}

interface DeployDevManifestSummary {
  deployCommit: string;
  desiredRef: string;
  environment: "dev";
  ci: {
    repo: string;
    scriptPath: string;
    timeoutMs: number;
  };
  services: Array<{ id: string; commitId: string; repo: string }>;
}

function stringOption(args: string[], name: string): string | null {
  const index = args.indexOf(name);
  if (index === -1) return null;
  const value = args[index + 1];
  if (value === undefined || value.startsWith("--")) throw new Error(`${name} requires a value`);
  return value;
}

function numberOption(args: string[], name: string, fallback: number): number {
  const raw = stringOption(args, name);
  if (raw === null) return fallback;
  const value = Number(raw);
  if (!Number.isInteger(value) || value < 0) throw new Error(`${name} must be a non-negative integer`);
  return value;
}

function requireRevision(value: string | null): string {
  if (value === null || value.length === 0) throw new Error("ci run requires --revision <commit-or-ref>");
  if (!/^[A-Za-z0-9._/@:-]{1,160}$/u.test(value)) throw new Error("ci --revision contains unsupported characters");
  return value;
}

function requireDesiredRef(value: string | null): string {
  const ref = value ?? "master";
  if (!/^[A-Za-z0-9._/-]{1,160}$/u.test(ref) || ref.startsWith("-") || ref.includes("..")) {
    throw new Error("ci run-dev-e2e --desired-ref contains unsupported characters");
  }
  return ref;
}

function boolFlag(args: string[], name: string): boolean {
  return args.includes(name);
}

function shellQuote(value: string): string {
  return `'${value.replace(/'/gu, "'\\''")}'`;
}

function chunks(value: string, size: number): string[] {
  const result: string[] = [];
  for (let index = 0; index < value.length; index += size) {
    result.push(value.slice(index, index + size));
  }
  return result;
}

function asRecord(value: unknown): Record<string, unknown> | null {
  return typeof value === "object" && value !== null && !Array.isArray(value) ? value as Record<string, unknown> : null;
}

function asString(value: unknown): string {
  return typeof value === "string" ? value : "";
}

function coreBody(response: unknown): Record<string, unknown> | null {
  return asRecord(asRecord(response)?.body);
}

function positiveManifestNumber(value: unknown, fallback: number, path: string): number {
  if (value === undefined || value === null) return fallback;
  if (typeof value !== "number" || !Number.isInteger(value) || value <= 0) throw new Error(`${path} must be a positive integer`);
  return value;
}

function requireManifestString(value: unknown, path: string): string {
  if (typeof value !== "string" || value.length === 0) throw new Error(`${path} must be a non-empty string`);
  return value;
}

function requireCiScriptPath(value: unknown): string {
  const scriptPath = requireManifestString(value, "environments.dev.ci.scriptPath");
  if (!scriptPath.startsWith("scripts/ci/") || scriptPath.includes("..") || scriptPath.startsWith("/") || !scriptPath.endsWith(".sh")) {
    throw new Error("environments.dev.ci.scriptPath must be a repo-relative scripts/ci/*.sh path");
  }
  return scriptPath;
}

async function dispatchSsh(command: string, waitMs: number, remoteTimeoutMs: number, pollCompletion = true): Promise<DispatchResult> {
  const dispatchResponse = coreInternalFetch("/api/dispatch", {
    method: "POST",
    body: {
      providerId: d601ProviderId,
      command: "host.ssh",
      payload: {
        source: "ci-cli",
        mode: "exec",
        command,
        timeoutMs: remoteTimeoutMs,
        cwd: "/home/ubuntu",
      },
    },
  });
  const dispatchBody = coreBody(dispatchResponse);
  const taskId = asString(dispatchBody?.taskId);
  if (dispatchBody?.ok !== true || taskId.length === 0) {
    return {
      ok: false,
      taskId: taskId || null,
      status: null,
      stdout: "",
      stderr: asString(dispatchBody?.error) || "dispatch did not return a task id",
      exitCode: null,
      raw: dispatchResponse,
    };
  }
  if (!pollCompletion) {
    return {
      ok: true,
      taskId,
      status: "submitted",
      stdout: "",
      stderr: "",
      exitCode: null,
      raw: dispatchBody,
    };
  }
  const deadline = Date.now() + Math.max(waitMs, 1_000);
  let latest: unknown = null;
  while (Date.now() < deadline) {
    latest = coreInternalFetch(`/api/tasks/${encodeURIComponent(taskId)}`, { maxResponseBytes: 3_000_000 });
    const task = asRecord(coreBody(latest)?.task);
    const status = asString(task?.status);
    if (status === "succeeded" || status === "failed") {
      const result = asRecord(task?.result);
      const exitCode = typeof result?.exitCode === "number" ? result.exitCode : null;
      const stdout = asString(result?.stdout);
      const stderr = asString(result?.stderr);
      return {
        ok: status === "succeeded" && (exitCode === null || exitCode === 0),
        taskId,
        status,
        stdout,
        stderr,
        exitCode,
        raw: task,
      };
    }
    await Bun.sleep(500);
  }
  return {
    ok: false,
    taskId,
    status: "timeout",
    stdout: "",
    stderr: `host.ssh task ${taskId} did not finish within ${Math.max(waitMs, 1_000)}ms`,
    exitCode: null,
    raw: latest,
  };
}

async function runRemoteKubectl(script: string, waitMs = 60_000, remoteTimeoutMs = 45_000): Promise<DispatchResult> {
  const result = await runRemoteKubectlRaw(script, waitMs, remoteTimeoutMs);
  if (!result.ok) {
    throw new Error(`D601 kubectl command failed: ${result.stderr || result.stdout || JSON.stringify(result.raw)}`);
  }
  return result;
}

async function runRemoteKubectlRaw(script: string, waitMs = 60_000, remoteTimeoutMs = 45_000): Promise<DispatchResult> {
  const command = [
    "set -euo pipefail",
    `export KUBECONFIG=${shellQuote(d601Kubeconfig)}`,
    script,
  ].join("\n");
  return dispatchSsh(command, waitMs, remoteTimeoutMs);
}

async function uploadRemoteBase64(path: string, encoded: string): Promise<DispatchResult> {
  const init = await dispatchSsh([
    "set -euo pipefail",
    `target=${shellQuote(path)}`,
    "rm -f \"$target\"",
    ": > \"$target\"",
    "chmod 600 \"$target\"",
  ].join("\n"), 20_000, 10_000);
  if (!init.ok) return init;
  for (const chunk of chunks(encoded, 950)) {
    const append = await dispatchSsh([
      "set -euo pipefail",
      `target=${shellQuote(path)}`,
      `printf %s ${shellQuote(chunk)} >> "$target"`,
    ].join("\n"), 20_000, 10_000);
    if (!append.ok) return append;
  }
  return dispatchSsh([
    "set -euo pipefail",
    `target=${shellQuote(path)}`,
    "wc -c \"$target\"",
  ].join("\n"), 20_000, 10_000);
}

async function runRemoteBackground(label: string, script: string, timeoutMs: number): Promise<DispatchResult> {
  const token = randomUUID().replace(/-/gu, "").slice(0, 12);
  const safeLabel = label.replace(/[^a-z0-9-]/giu, "-").toLowerCase().slice(0, 48);
  const base = `/tmp/unidesk-ci-${safeLabel}-${token}`;
  const scriptPath = `${base}.sh`;
  const logPath = `${base}.log`;
  const donePath = `${base}.done`;
  const encoded = Buffer.from(script, "utf8").toString("base64");
  const upload = await uploadRemoteBase64(`${scriptPath}.b64`, encoded);
  if (!upload.ok) return upload;
  const start = await dispatchSsh([
    "set -euo pipefail",
    `script_path=${shellQuote(scriptPath)}`,
    `log_path=${shellQuote(logPath)}`,
    `done_path=${shellQuote(donePath)}`,
    "rm -f \"$script_path\" \"$log_path\" \"$done_path\"",
    "base64 -d \"$script_path.b64\" > \"$script_path\"",
    "rm -f \"$script_path.b64\"",
    "chmod 700 \"$script_path\"",
    "nohup bash -lc \"bash '$script_path' >'$log_path' 2>&1; code=\\$?; printf '%s\\n' \\\"\\$code\\\" >'$done_path'\" >/tmp/unidesk-ci-nohup.log 2>&1 &",
    "printf 'remote_job_pid=%s\\nlog=%s\\ndone=%s\\n' \"$!\" \"$log_path\" \"$done_path\"",
  ].join("\n"), 20_000, 10_000);
  if (!start.ok) return start;

  const deadline = Date.now() + timeoutMs;
  let latest: DispatchResult = start;
  while (Date.now() < deadline) {
    await Bun.sleep(8_000);
    latest = await dispatchSsh([
      "set -euo pipefail",
      `log_path=${shellQuote(logPath)}`,
      `done_path=${shellQuote(donePath)}`,
      "if [ -f \"$done_path\" ]; then",
      "  code=\"$(cat \"$done_path\" 2>/dev/null || printf 1)\"",
      "  printf 'REMOTE_DONE:%s\\n' \"$code\"",
      "else",
      "  printf 'REMOTE_RUNNING\\n'",
      "fi",
      "tail -n 160 \"$log_path\" 2>/dev/null || true",
    ].join("\n"), 75_000, 12_000);
    if (!latest.ok) {
      if (latest.status === "timeout" || latest.stderr.includes("did not finish within")) {
        continue;
      }
      return latest;
    }
    const firstLine = latest.stdout.split(/\r?\n/u)[0] ?? "";
    if (firstLine.startsWith("REMOTE_DONE:")) {
      const code = Number(firstLine.slice("REMOTE_DONE:".length).trim());
      return {
        ...latest,
        ok: code === 0,
        exitCode: Number.isInteger(code) ? code : 1,
        status: code === 0 ? "succeeded" : "failed",
      };
    }
  }
  return {
    ...latest,
    ok: false,
    status: "timeout",
    exitCode: 124,
    stderr: `remote background job ${label} did not finish within ${timeoutMs}ms`,
  };
}

async function remoteApplyManifest(path: string): Promise<void> {
  const absolute = rootPath(path);
  if (!existsSync(absolute)) throw new Error(`manifest not found: ${path}`);
  const encoded = Buffer.from(readFileSync(absolute, "utf8"), "utf8").toString("base64");
  const token = randomUUID().replace(/-/gu, "").slice(0, 12);
  const b64Path = `/tmp/unidesk-ci-apply-${token}.b64`;
  const upload = await uploadRemoteBase64(b64Path, encoded);
  if (!upload.ok) throw new Error(`failed to upload manifest ${path}: ${upload.stderr || upload.stdout}`);
  const script = [
    "set -euo pipefail",
    `export KUBECONFIG=${shellQuote(d601Kubeconfig)}`,
    "tmp=$(mktemp /tmp/unidesk-ci-apply.XXXXXX.yaml)",
    `b64_path=${shellQuote(b64Path)}`,
    "trap 'rm -f \"$tmp\" \"$b64_path\"' EXIT",
    "base64 -d \"$b64_path\" > \"$tmp\"",
    "kubectl apply -f \"$tmp\"",
  ].join("\n");
  const result = await runRemoteBackground(`apply-${path.split("/").pop() ?? "manifest"}`, script, 180_000);
  if (!result.ok) throw new Error(`kubectl apply failed for ${path}: ${result.stderr || result.stdout}`);
}

async function prewarmCiRuntimeImages(): Promise<void> {
  const images = ciRuntimeImages.map(shellQuote).join(" ");
  const script = [
    "set -euo pipefail",
    `export KUBECONFIG=${shellQuote(d601Kubeconfig)}`,
    "export DOCKER_CONFIG=/tmp/unidesk-ci-docker-config",
    "mkdir -p \"$DOCKER_CONFIG\"",
    "printf '{}\\n' > \"$DOCKER_CONFIG/config.json\"",
    `images=(${images})`,
    "for image in \"${images[@]}\"; do",
    "  if ! docker image inspect \"$image\" >/dev/null 2>&1; then",
    "    echo ci_runtime_image_pull=$image",
    `    HTTP_PROXY=${shellQuote(providerGatewayWsEgressProxyUrl)} HTTPS_PROXY=${shellQuote(providerGatewayWsEgressProxyUrl)} ALL_PROXY=${shellQuote(providerGatewayWsEgressProxyUrl)} NO_PROXY=localhost,127.0.0.1,::1,host.docker.internal docker pull --platform linux/amd64 "$image"`,
    "  else",
    "    echo ci_runtime_image_cached=$image",
    "  fi",
    "done",
    "pause_entrypoint=$(docker image inspect rancher/mirrored-pause:3.6 --format '{{json .Config.Entrypoint}}' 2>/dev/null || true)",
    "if ! printf '%s' \"$pause_entrypoint\" | grep -q '\"/pause\"'; then echo native_k3s_pause_image_invalid_entrypoint=$pause_entrypoint >&2; exit 1; fi",
    "containerd_images=$(/mnt/c/Windows/System32/wsl.exe -u root -- ctr --address /run/k3s/containerd/containerd.sock -n k8s.io images ls 2>/tmp/unidesk-ci-containerd-images.err || true)",
    "containerd_ready=1",
    "for image in \"${images[@]}\"; do",
    "  case \"$image\" in",
    "    rancher/*|oven/*|alpine/*) ref=\"docker.io/$image\" ;;",
    "    unidesk-*) ref=\"docker.io/library/$image\" ;;",
    "    *) ref=\"$image\" ;;",
    "  esac",
    "  if ! printf '%s\\n' \"$containerd_images\" | grep -F \"$ref\" >/dev/null; then",
    "    containerd_ready=0",
    "    echo ci_runtime_image_containerd_missing=$ref",
    "  fi",
    "done",
    "if [ \"$containerd_ready\" = \"1\" ]; then",
    "  echo ci_runtime_images_containerd_cached=all",
    "  exit 0",
    "fi",
    "rm -f /tmp/unidesk-ci-runtime-images.tar",
    "docker save \"${images[@]}\" -o /tmp/unidesk-ci-runtime-images.tar",
    "/mnt/c/Windows/System32/wsl.exe -u root -- ctr --address /run/k3s/containerd/containerd.sock -n k8s.io images import --digests --all-platforms /tmp/unidesk-ci-runtime-images.tar >/tmp/unidesk-ci-runtime-images-import.log",
    "/mnt/c/Windows/System32/wsl.exe -u root -- ctr --address /run/k3s/containerd/containerd.sock -n k8s.io images ls | grep -F 'docker.io/rancher/mirrored-pause:3.6' >/dev/null",
    "/mnt/c/Windows/System32/wsl.exe -u root -- ctr --address /run/k3s/containerd/containerd.sock -n k8s.io images ls | grep -F 'docker.io/oven/bun:1-debian' >/dev/null",
    "/mnt/c/Windows/System32/wsl.exe -u root -- ctr --address /run/k3s/containerd/containerd.sock -n k8s.io images ls | grep -F 'docker.io/alpine/git:2.45.2' >/dev/null",
    `/mnt/c/Windows/System32/wsl.exe -u root -- ctr --address /run/k3s/containerd/containerd.sock -n k8s.io images ls | grep -F ${shellQuote(`docker.io/library/${ciCodeQueueImage}`)} >/dev/null`,
  ].join("\n");
  const result = await runRemoteBackground("prewarm-runtime-images", script, 900_000);
  if (!result.ok) throw new Error(`CI runtime image prewarm failed: ${result.stderr || result.stdout}`);
}

async function status(): Promise<Record<string, unknown>> {
  const summary = await runRemoteKubectl([
    "set -euo pipefail",
    "printf 'tekton_pipelines='",
    "kubectl get deploy -n tekton-pipelines -o name 2>/dev/null | tr '\\n' ' ' || true",
    "printf '\\ntekton_triggers='",
    "kubectl get deploy -n tekton-pipelines-resolvers -o name 2>/dev/null | tr '\\n' ' ' || true",
    "printf '\\nunidesk_ci='",
    "kubectl get pipeline,task,pipelinerun,eventlistener,svc -n unidesk-ci -o name 2>/dev/null | tr '\\n' ' ' || true",
    "printf '\\n'",
  ].join("\n"));
  return {
    ok: true,
    providerId: d601ProviderId,
    orchestrator: "native-k3s",
    tekton: {
      pipelineVersion: tektonPipelineVersion,
      triggersVersion: tektonTriggersVersion,
    },
    summary: summary.stdout.trim(),
  };
}

async function install(): Promise<Record<string, unknown>> {
  if (!existsSync(rootPath("src/components/microservices/k3sctl-adapter/k3s/ci/unidesk-ci.pipeline.yaml"))) {
    throw new Error("CI manifests are missing");
  }
  await prewarmCiRuntimeImages();
  const installTektonScript = [
    "set -euo pipefail",
    `export KUBECONFIG=${shellQuote(d601Kubeconfig)}`,
    `kubectl apply -f ${shellQuote(tektonPipelineReleaseUrl)}`,
    "kubectl wait --for=condition=Available deployment --all -n tekton-pipelines --timeout=900s",
    `kubectl apply -f ${shellQuote(tektonTriggersReleaseUrl)}`,
    `kubectl apply -f ${shellQuote(tektonTriggersInterceptorsUrl)}`,
    "kubectl wait --for=condition=Available deployment --all -n tekton-pipelines --timeout=900s",
    "kubectl wait --for=condition=Available deployment --all -n tekton-pipelines-resolvers --timeout=900s",
  ].join("\n");
  const installTekton = await runRemoteBackground("install-tekton", installTektonScript, 1_200_000);
  if (!installTekton.ok) throw new Error(`Tekton install failed: ${installTekton.stderr || installTekton.stdout}`);
  await remoteApplyManifest("src/components/microservices/k3sctl-adapter/k3s/ci/tekton-install.yaml");
  await remoteApplyManifest("src/components/microservices/k3sctl-adapter/k3s/ci/unidesk-ci.pipeline.yaml");
  await remoteApplyManifest("src/components/microservices/k3sctl-adapter/k3s/ci/unidesk-ci.triggers.yaml");
  return status();
}

function pipelineRunManifest(options: CiOptions): string {
  const safeSuffix = new Date().toISOString().replace(/[-:.TZ]/g, "").slice(0, 14).toLowerCase();
  return `apiVersion: tekton.dev/v1
kind: PipelineRun
metadata:
  generateName: unidesk-ci-${safeSuffix}-
  namespace: unidesk-ci
  labels:
    app.kubernetes.io/name: unidesk-ci
    app.kubernetes.io/part-of: unidesk
    unidesk.ai/revision: ${JSON.stringify(options.revision)}
spec:
  pipelineRef:
    name: unidesk-ci
  taskRunTemplate:
    serviceAccountName: unidesk-ci-runner
  params:
    - name: repo-url
      value: ${JSON.stringify(options.repoUrl)}
    - name: revision
      value: ${JSON.stringify(options.revision)}
  workspaces:
    - name: shared-workspace
      persistentVolumeClaim:
        claimName: unidesk-ci-cache
`;
}

async function remoteCreatePipelineRun(manifest: string): Promise<string> {
  const encoded = Buffer.from(manifest, "utf8").toString("base64");
  const token = randomUUID().replace(/-/gu, "").slice(0, 12);
  const b64Path = `/tmp/unidesk-ci-pipelinerun-${token}.b64`;
  const upload = await uploadRemoteBase64(b64Path, encoded);
  if (!upload.ok) throw new Error(`failed to upload PipelineRun manifest: ${upload.stderr || upload.stdout}`);
  const result = await runRemoteKubectl([
    "tmp=$(mktemp /tmp/unidesk-ci-run.XXXXXX.yaml)",
    `b64_path=${shellQuote(b64Path)}`,
    "trap 'rm -f \"$tmp\" \"$b64_path\"' EXIT",
    "base64 -d \"$b64_path\" > \"$tmp\"",
    "kubectl create -f \"$tmp\" -o jsonpath='{.metadata.name}'",
  ].join("\n"), 60_000, 45_000);
  return result.stdout.trim();
}

async function waitForPipelineRun(name: string, waitMs: number): Promise<DispatchResult | null> {
  if (waitMs <= 0) return null;
  const command = [
    "set -euo pipefail",
    `export KUBECONFIG=${shellQuote(d601Kubeconfig)}`,
    `deadline=$((SECONDS + ${Math.ceil(waitMs / 1000)}))`,
    "while [ \"$SECONDS\" -lt \"$deadline\" ]; do",
    `  condition="$(kubectl get pipelinerun/${shellQuote(name)} -n unidesk-ci -o jsonpath='{range .status.conditions[?(@.type==\"Succeeded\")]}{.status}{\"\\t\"}{.reason}{\"\\t\"}{.message}{end}' 2>/dev/null || true)"`,
    "  case \"$condition\" in",
    "    True*)",
    "      echo \"$condition\"",
    `      kubectl get pipelinerun/${shellQuote(name)} -n unidesk-ci -o json`,
    "      exit 0",
    "      ;;",
    "    False*)",
    "      echo \"$condition\"",
    `      kubectl get pipelinerun/${shellQuote(name)} -n unidesk-ci -o json`,
    "      exit 1",
    "      ;;",
    "  esac",
    "  sleep 2",
    "done",
    `echo "Timed out waiting for pipelinerun/${name}" >&2`,
    `kubectl get pipelinerun/${shellQuote(name)} -n unidesk-ci -o json`,
    "exit 124",
  ].join("\n");
  return dispatchSsh(command, waitMs + 30_000, waitMs + 20_000);
}

async function run(options: CiOptions): Promise<Record<string, unknown>> {
  const name = await remoteCreatePipelineRun(pipelineRunManifest(options));
  const wait = await waitForPipelineRun(name, options.waitMs);
  const waitSucceeded = wait === null || wait.exitCode === 0 || wait.stdout.trimStart().startsWith("True\tSucceeded\t");
  return {
    ok: waitSucceeded,
    pipelineRun: name,
    namespace: "unidesk-ci",
    repoUrl: options.repoUrl,
    revision: options.revision,
    wait: wait === null ? null : {
      stdoutTail: wait.stdout.slice(-6000),
      stderrTail: wait.stderr.slice(-6000),
    },
    next: [
      `bun scripts/cli.ts ci logs ${name}`,
      "bun scripts/cli.ts ci status",
    ],
  };
}

async function runRemoteDevE2ELauncher(options: CiDevE2EOptions): Promise<DispatchResult> {
  const scriptTimeoutMs = Math.max(options.scriptTimeoutMs, options.waitMs, 60_000);
  const remoteTimeoutMs = 45_000;
  const command = [
    "set -euo pipefail",
    `run_id=${shellQuote(options.runId)}`,
    `repo_url=${shellQuote(options.scriptRepo)}`,
    `commit=${shellQuote(options.deployCommit)}`,
    `script_path=${shellQuote(options.scriptPath)}`,
    `desired_ref=${shellQuote(options.desiredRef)}`,
    `environment=${shellQuote(options.environment)}`,
    `keep_namespace=${shellQuote(options.keepNamespace ? "true" : "false")}`,
    `timeout_ms=${shellQuote(String(scriptTimeoutMs))}`,
    "work_dir=\"/tmp/unidesk-ci/$run_id\"",
    "result_dir=\"/home/ubuntu/.unidesk/runs/$run_id\"",
    "mkdir -p \"$work_dir\" \"$result_dir\"",
    "launcher_log=\"$result_dir/launcher.log\"",
    "case \"$script_path\" in scripts/ci/*.sh) ;; *) echo \"invalid_script_path=$script_path\" >&2; exit 2 ;; esac",
    "(",
    "set -euo pipefail",
    "trap '' HUP",
    "exec >> \"$launcher_log\" 2>&1",
    "echo \"launcher_run_id=$run_id\"",
    "echo \"launcher_repo=$repo_url\"",
    "echo \"launcher_commit=$commit\"",
    "echo \"launcher_script_path=$script_path\"",
    "export DOCKER_CONFIG=/tmp/unidesk-ci-docker-config",
    "mkdir -p \"$DOCKER_CONFIG\"",
    "printf '{}\\n' > \"$DOCKER_CONFIG/config.json\"",
    `build_proxy=${shellQuote(providerGatewayWsEgressProxyUrl)}`,
    "export HTTP_PROXY=\"$build_proxy\" HTTPS_PROXY=\"$build_proxy\" ALL_PROXY=\"$build_proxy\"",
    "export NO_PROXY=\"localhost,127.0.0.1,::1,host.docker.internal,.svc,.cluster.local,kubernetes.default.svc\"",
    "if ! curl -fsSI --max-time 20 -x \"$build_proxy\" https://github.com >/dev/null; then",
    "  echo \"ci_provider_egress_proxy_unavailable=$build_proxy\" >&2",
    "  exit 1",
    "fi",
    "echo \"ci_provider_egress_proxy=provider-gateway-ws-egress:$build_proxy\"",
    "repo_fetch_url=\"$repo_url\"",
    "case \"$repo_fetch_url\" in",
    "  https://github.com/*)",
    "    repo_path=\"${repo_fetch_url#https://github.com/}\"",
    "    repo_path=\"${repo_path%.git}\"",
    "    repo_fetch_url=\"git@github.com:$repo_path.git\"",
    "    ;;",
    "esac",
    "export GIT_SSH_COMMAND=\"ssh -o BatchMode=yes -o IdentitiesOnly=yes -o StrictHostKeyChecking=accept-new -o UserKnownHostsFile=$HOME/.ssh/known_hosts -i $HOME/.ssh/id_ed25519 -o 'ProxyCommand=nc -X connect -x 127.0.0.1:18789 %h %p'\"",
    "echo \"launcher_repo_fetch_url=$repo_fetch_url\"",
    "repo_dir=\"$work_dir/repo\"",
    "if [ ! -d \"$repo_dir/.git\" ]; then",
    "  git clone --no-checkout \"$repo_fetch_url\" \"$repo_dir\"",
    "fi",
    "git -C \"$repo_dir\" remote set-url origin \"$repo_fetch_url\"",
    "git -C \"$repo_dir\" fetch --no-tags origin \"$commit\" || git -C \"$repo_dir\" fetch --no-tags origin '+refs/heads/*:refs/remotes/origin/*'",
    "resolved=$(git -C \"$repo_dir\" rev-parse --verify \"$commit^{commit}\")",
    "test \"$resolved\" = \"$commit\" || { echo \"resolved_commit_mismatch=$resolved expected=$commit\" >&2; exit 1; }",
    "git -C \"$repo_dir\" cat-file -e \"$resolved:$script_path\"",
    "git -C \"$repo_dir\" show \"$resolved:$script_path\" > \"$work_dir/runner.sh\"",
    "git -C \"$repo_dir\" show \"$resolved:deploy.json\" > \"$work_dir/deploy.json\"",
    "chmod 700 \"$work_dir/runner.sh\"",
    "echo \"runner_script_ready=$work_dir/runner.sh\"",
    "runner_args=(",
    "  --run-id \"$run_id\"",
    "  --repo-url \"$repo_url\"",
    "  --desired-ref \"$desired_ref\"",
    "  --manifest-commit \"$commit\"",
    "  --manifest-file \"$work_dir/deploy.json\"",
    "  --environment \"$environment\"",
    "  --result-dir \"$result_dir\"",
    "  --timeout-ms \"$timeout_ms\"",
    ")",
    "if [ \"$keep_namespace\" = \"true\" ]; then runner_args+=(--keep-namespace); fi",
    "bash \"$work_dir/runner.sh\" \"${runner_args[@]}\"",
    ") &",
    "launcher_pid=$!",
    "disown \"$launcher_pid\" 2>/dev/null || true",
    "printf 'launcher_background_pid=%s\\nresult_dir=%s\\n' \"$launcher_pid\" \"$result_dir\"",
  ].join("\n");
  return dispatchSsh(command, 30_000, remoteTimeoutMs);
}

async function waitForDevE2EResult(runId: string, waitMs: number): Promise<DispatchResult | null> {
  if (waitMs <= 0) return null;
  const deadline = Date.now() + waitMs;
  let latest: DispatchResult | null = null;
  while (Date.now() < deadline) {
    const result = await dispatchSsh([
      "set -euo pipefail",
      `run_id=${shellQuote(runId)}`,
      "result_dir=\"/home/ubuntu/.unidesk/runs/$run_id\"",
      "if [ -f \"$result_dir/result.json\" ]; then cat \"$result_dir/result.json\"; exit 0; fi",
      "printf 'RUNNING result_dir=%s\\n' \"$result_dir\"",
      "tail -n 40 \"$result_dir/launcher.log\" 2>/dev/null || true",
      "tail -n 80 \"$result_dir/runner.log\" 2>/dev/null || true",
    ].join("\n"), 30_000, 20_000);
    latest = result;
    const stdout = result.stdout.trimStart();
    if (stdout.startsWith("{")) {
      const parsed = JSON.parse(stdout) as { ok?: boolean; status?: string };
      return {
        ...result,
        ok: parsed.ok === true,
        status: parsed.status ?? (parsed.ok === true ? "succeeded" : "failed"),
        exitCode: parsed.ok === true ? 0 : 1,
      };
    }
    await Bun.sleep(5_000);
  }
  return {
    ok: false,
    taskId: latest?.taskId ?? null,
    status: "timeout",
    stdout: latest?.stdout ?? "",
    stderr: `dev e2e result did not finish within ${waitMs}ms`,
    exitCode: 124,
    raw: latest?.raw ?? null,
  };
}

function resolveDeployDevManifest(desiredRef: string): DeployDevManifestSummary {
  const remoteRef = `refs/remotes/origin/${desiredRef}`;
  const fetch = runCommand(["git", "fetch", "--quiet", "origin", `+refs/heads/${desiredRef}:${remoteRef}`], repoRoot);
  if (fetch.exitCode !== 0) throw new Error(`failed to fetch origin/${desiredRef}: ${fetch.stderr || fetch.stdout}`);
  const deployCommitResult = runCommand(["git", "rev-parse", `origin/${desiredRef}`], repoRoot);
  if (deployCommitResult.exitCode !== 0) throw new Error(`failed to resolve origin/${desiredRef}: ${deployCommitResult.stderr || deployCommitResult.stdout}`);
  const show = runCommand(["git", "show", `origin/${desiredRef}:deploy.json`], repoRoot);
  if (show.exitCode !== 0) throw new Error(`failed to read deploy.json from origin/${desiredRef}: ${show.stderr || show.stdout}`);
  const parsed = JSON.parse(show.stdout) as unknown;
  const record = asRecord(parsed);
  if (record?.schemaVersion !== 2) throw new Error(`origin/${desiredRef}:deploy.json must use schemaVersion=2`);
  const environments = asRecord(record.environments);
  const dev = asRecord(environments?.dev);
  const ci = asRecord(dev?.ci);
  if (ci === null) throw new Error(`origin/${desiredRef}:deploy.json must contain environments.dev.ci`);
  const rawServices = Array.isArray(dev?.services) ? dev.services : [];
  const services = rawServices.map((item) => {
    const service = asRecord(item);
    return {
      id: asString(service?.id),
      commitId: asString(service?.commitId).toLowerCase(),
      repo: asString(service?.repo),
    };
  }).filter((service) => service.id.length > 0 && service.commitId.length > 0);
  if (services.length === 0) throw new Error(`origin/${desiredRef}:deploy.json has no environments.dev services with commitId`);
  return {
    deployCommit: deployCommitResult.stdout.trim(),
    desiredRef,
    environment: "dev",
    ci: {
      repo: requireManifestString(ci.repo, "environments.dev.ci.repo"),
      scriptPath: requireCiScriptPath(ci.scriptPath),
      timeoutMs: positiveManifestNumber(ci.timeoutMs, 1_800_000, "environments.dev.ci.timeoutMs"),
    },
    services,
  };
}

function makeRunId(deployCommit: string): string {
  const stamp = new Date().toISOString().replace(/[-:.TZ]/g, "").slice(0, 14).toLowerCase();
  return `${stamp}-${deployCommit.slice(0, 8).toLowerCase()}`.replace(/[^a-z0-9-]/gu, "-").slice(0, 48);
}

async function runDevE2E(options: CiDevE2EOptions): Promise<Record<string, unknown>> {
  const result = await runRemoteDevE2ELauncher(options);
  const wait = result.ok ? await waitForDevE2EResult(options.runId, options.waitMs) : null;
  const ok = result.ok && (result.exitCode === null || result.exitCode === 0) && (wait === null || wait.ok);
  return {
    ok,
    runId: options.runId,
    namespace: "unidesk-ci",
    temporaryNamespace: `unidesk-ci-e2e-${options.runId}`,
    repoUrl: options.repoUrl,
    desiredRef: options.desiredRef,
    deployCommit: options.deployCommit,
    scriptRepo: options.scriptRepo,
    scriptPath: options.scriptPath,
    environment: options.environment,
    services: options.services,
    keepNamespace: options.keepNamespace,
    triggerMode: "commit-pinned-ssh-launcher",
    launcher: {
      taskId: result.taskId,
      status: result.status,
      exitCode: result.exitCode,
      stdoutTail: result.stdout.slice(-6000),
      stderrTail: result.stderr.slice(-6000),
    },
    wait: wait === null ? null : {
      status: wait.status,
      exitCode: wait.exitCode,
      stdoutTail: wait.stdout.slice(-6000),
      stderrTail: wait.stderr.slice(-6000),
    },
    resultDir: `/home/ubuntu/.unidesk/runs/${options.runId}`,
    next: [
      `bun scripts/cli.ts ci logs ${options.runId}`,
      "bun scripts/cli.ts ci status",
    ],
  };
}

async function logs(name: string): Promise<Record<string, unknown>> {
  if (name.length === 0) throw new Error("ci logs requires run id or PipelineRun name");
  if (/^[a-z0-9]([-a-z0-9]{0,46}[a-z0-9])?$/u.test(name)) {
    const result = await dispatchSsh([
      "set -euo pipefail",
      `run_id=${shellQuote(name)}`,
      "result_dir=\"/home/ubuntu/.unidesk/runs/$run_id\"",
      "printf 'result_dir=%s\\n' \"$result_dir\"",
      "found=0",
      "if [ -f \"$result_dir/result.json\" ]; then found=1; echo '===== result.json'; cat \"$result_dir/result.json\"; fi",
      "if [ -f \"$result_dir/launcher.log\" ]; then found=1; echo '===== launcher.log'; tail -n 160 \"$result_dir/launcher.log\"; fi",
      "if [ -f \"$result_dir/runner.log\" ]; then found=1; echo '===== runner.log'; tail -n 240 \"$result_dir/runner.log\"; fi",
      "if [ -f \"$result_dir/pods.log\" ]; then found=1; echo '===== pods.log'; tail -n 240 \"$result_dir/pods.log\"; fi",
      "if [ \"$found\" = \"0\" ]; then echo \"no_run_files=$result_dir\" >&2; exit 42; fi",
    ].join("\n"), 60_000, 45_000);
    if (result.ok || (result.exitCode !== 42 && !result.stderr.includes("no_run_files="))) {
      return {
        ok: result.ok,
        runId: name,
        output: result.stdout,
        stderr: result.stderr,
        exitCode: result.exitCode,
      };
    }
  }
  const result = await runRemoteKubectl([
    "set -euo pipefail",
    `kubectl get pipelinerun/${shellQuote(name)} -n unidesk-ci -o wide`,
    `kubectl get taskrun -n unidesk-ci -l tekton.dev/pipelineRun=${shellQuote(name)} -o wide`,
    `for pod in $(kubectl get pods -n unidesk-ci -l tekton.dev/pipelineRun=${shellQuote(name)} -o name); do echo "===== $pod"; kubectl logs -n unidesk-ci "$pod" --all-containers=true --tail=160 || true; done`,
  ].join("\n"), 60_000, 45_000);
  return {
    ok: true,
    pipelineRun: name,
    output: result.stdout,
    stderr: result.stderr,
  };
}

function help(): Record<string, unknown> {
  return {
    command: "ci install|status|run|run-dev-e2e|logs",
    description: "Manage the D601 k3s Tekton CI gate. This intentionally does not deploy CD.",
    examples: [
      "bun scripts/cli.ts ci install",
      "bun scripts/cli.ts ci run --revision <commit>",
      "bun scripts/cli.ts ci run-dev-e2e --wait-ms 600000",
      "bun scripts/cli.ts ci logs <runId>",
    ],
    tekton: {
      pipelineVersion: tektonPipelineVersion,
      triggersVersion: tektonTriggersVersion,
      sources: {
        pipeline: tektonPipelineReleaseUrl,
        triggers: tektonTriggersReleaseUrl,
        interceptors: tektonTriggersInterceptorsUrl,
      },
    },
    runDevE2E: {
      defaultTriggerMode: "commit-pinned-ssh-launcher",
      desiredState: "origin/master:deploy.json#environments.dev",
      scriptSource: "origin/master:deploy.json#environments.dev.ci",
    },
  };
}

function requireRunId(value: string): string {
  if (!/^[a-z0-9]([-a-z0-9]{0,46}[a-z0-9])?$/u.test(value)) {
    throw new Error("ci run-dev-e2e run id must be DNS-safe lowercase alnum/dash, max 48 chars");
  }
  return value;
}

export async function runCiCommand(_config: UniDeskConfig, args: string[]): Promise<Record<string, unknown>> {
  const [action = "status", nameArg] = args;
  if (action === "help" || action === "--help" || action === "-h") return help();
  if (action === "install") return install();
  if (action === "status") return status();
  if (action === "run") {
    const repoUrl = stringOption(args, "--repo") ?? stringOption(args, "--repo-url") ?? "https://github.com/pikasTech/unidesk";
    const revision = requireRevision(stringOption(args, "--revision") ?? stringOption(args, "--commit"));
    const waitMs = numberOption(args, "--wait-ms", 0);
    return run({ repoUrl, revision, waitMs });
  }
  if (action === "run-dev-e2e") {
    const repoUrl = stringOption(args, "--repo") ?? stringOption(args, "--repo-url") ?? "https://github.com/pikasTech/unidesk";
    const desiredRef = requireDesiredRef(stringOption(args, "--desired-ref") ?? stringOption(args, "--deploy-branch"));
    const manifest = resolveDeployDevManifest(desiredRef);
    const waitMs = numberOption(args, "--wait-ms", 0);
    const runId = requireRunId(stringOption(args, "--run-id") ?? makeRunId(manifest.deployCommit));
    return runDevE2E({
      repoUrl,
      desiredRef,
      deployCommit: manifest.deployCommit,
      environment: manifest.environment,
      scriptRepo: manifest.ci.repo,
      scriptPath: manifest.ci.scriptPath,
      scriptTimeoutMs: manifest.ci.timeoutMs,
      services: manifest.services,
      runId,
      keepNamespace: boolFlag(args, "--keep-namespace"),
      waitMs,
    });
  }
  if (action === "logs") return logs(nameArg ?? "");
  throw new Error("ci command must be one of: install, status, run, run-dev-e2e, logs");
}

export function startCiInstallJob(): Record<string, unknown> {
  const job = startJob("ci_install", ["bun", "scripts/cli.ts", "ci", "install"], "Install/refresh Tekton CI on D601 k3s");
  return { ok: true, job };
}