// Single agent-turn command registration; delegates execution to the Gateway-backed agent command.
import { normalizeLowercaseStringOrEmpty } from "@openclaw/normalization-core/string-coerce";
import type { Command } from "commander";
import { formatDocsLink } from "../../../packages/terminal-core/src/links.js";
import { theme } from "../../../packages/terminal-core/src/theme.js";
import { THINKING_LEVELS_HELP } from "../../auto-reply/thinking.shared.js";
import { inheritOptionFromParent } from "../command-options.js";
import { measureCliCommandStartup } from "../command-startup-timing.js";
import { formatHelpExamples } from "../help-format.js";

function collectFallback(value: string, previous: string[]): string[] {
  return [...previous, value];
}

/** Register `openclaw agent` for one Gateway-backed agent turn. */
export function registerAgentTurnCommand(
  program: Command,
  args: { agentChannelOptions: string },
): void {
  const agent = program
    .command("agent")
    .description("Run an agent turn via the Gateway (use --local for embedded)")
    .option("-m, --message <text>", "Message body for the agent")
    .option("--message-file <path>", "Read the agent message body from a UTF-8 file (max 4 MiB)")
    .option("-t, --to <number>", "Recipient number in E.164 used to derive the session key")
    .option("--session-key <key>", "Explicit session key (agent:<id>:<key>, or scoped to --agent)")
    .option("--session-id <id>", "Use an explicit session id")
    .option("--agent <id>", "Agent id (overrides routing bindings)")
    .option("--model <id>", "Model override for this run (provider/model or model id)")
    .option(
      "--thinking <level>",
      `Thinking level: ${THINKING_LEVELS_HELP.replaceAll("|", " | ")} where supported`,
    )
    .option("--verbose <on|off>", "Persist agent verbose level for the session")
    .option(
      "--channel <channel>",
      `Delivery channel: ${args.agentChannelOptions} (omit to use the main session channel)`,
    )
    .option("--reply-to <target>", "Delivery target override (separate from session routing)")
    .option("--reply-channel <channel>", "Delivery channel override (separate from routing)")
    .option("--reply-account <id>", "Delivery account id override")
    .option(
      "--local",
      "Run the embedded agent locally using configured provider credentials or local CLI logins",
      false,
    )
    .option("--deliver", "Send the agent's reply back to the selected channel", false)
    .option("--json", "Output result as JSON", false)
    .option(
      "--timeout <seconds>",
      "Override agent command timeout (seconds, default 600 or config value)",
    )
    .addHelpText(
      "after",
      () =>
        `
${theme.heading("Examples:")}
${formatHelpExamples([
  ['openclaw agent --to +15555550123 --message "status update"', "Start a new session."],
  ['openclaw agent --agent ops --message "Summarize logs"', "Use a specific agent."],
  ["openclaw agent --agent ops --message-file ./task.md", "Read a multiline message file."],
  [
    'openclaw agent --session-key agent:ops:incident-42 --message "Summarize status"',
    "Target an exact session key.",
  ],
  [
    'openclaw agent --session-id 1234 --message "Summarize inbox" --thinking medium',
    "Target a session with explicit thinking level.",
  ],
  [
    'openclaw agent --to +15555550123 --message "Trace logs" --verbose on --json',
    "Enable verbose logging and JSON output.",
  ],
  ['openclaw agent --to +15555550123 --message "Summon reply" --deliver', "Deliver reply."],
  [
    'openclaw agent --agent ops --message "Generate report" --deliver --reply-channel slack --reply-to "#reports"',
    "Send reply to a different channel/target.",
  ],
])}

${theme.muted("Docs:")} ${formatDocsLink("/cli/agent", "docs.openclaw.ai/cli/agent")}`,
    )
    .action(async (opts): Promise<void> => {
      const verboseLevel =
        typeof opts.verbose === "string" ? normalizeLowercaseStringOrEmpty(opts.verbose) : "";
      const [
        { defaultRuntime },
        { runCommandWithRuntime },
        { setVerbose },
        { agentCliCommand },
        { requestExitAfterOneShotOutput },
      ] = await measureCliCommandStartup("agent-action-imports", () =>
        Promise.all([
          import("../../runtime.js"),
          import("../cli-utils.js"),
          import("../../global-state.js"),
          import("../../commands/agent-via-gateway.js"),
          import("../one-shot-exit.js"),
        ]),
      );
      await runCommandWithRuntime(defaultRuntime, async () => {
        setVerbose(verboseLevel === "on");
        await agentCliCommand(opts, defaultRuntime);
        requestExitAfterOneShotOutput(defaultRuntime);
      });
    });

  agent
    .command("exec [message]")
    .description("Run one isolated headless embedded agent turn")
    .option("--message-file <path>", "Read the UTF-8 prompt from a file; use - for stdin")
    .option("--cwd <dir>", "Set both the agent workspace and tool working directory")
    .option("--state-dir <dir>", "Use an existing state directory without deleting it")
    .option(
      "--config <path>",
      "Run against this config file instead of the ambient config (pins a reproducible run)",
    )
    .option("--isolated", "Ignore the ambient config and run against exec defaults only", false)
    .option("--model <provider/model>", "Use an explicit primary model for this run")
    .option("--code-mode <mode>", "Tool mode: direct | auto | code")
    .option("--local-model-lean", "Use the reduced local-model tool surface")
    .option(
      "--thinking <level>",
      `Thinking level: ${THINKING_LEVELS_HELP.replaceAll("|", " | ")} where supported`,
    )
    .option(
      "--fallback <provider/model>",
      "Add an ordered fallback model (repeatable; requires --model)",
      collectFallback,
      [],
    )
    .option("--auth-env-only", "Use provider credentials from environment variables only", false)
    .option("--no-auth-env-only", "Allow stored and external CLI credential discovery")
    .option("--timeout <seconds>", "Agent deadline in seconds", "600")
    .option("--json", "Emit the stable agent-exec JSON envelope", false)
    .addHelpText(
      "after",
      () =>
        `\n${theme.heading("Examples:")}\n${formatHelpExamples([
          ['openclaw agent exec "Fix the failing test"', "Run in the current directory."],
          [
            "openclaw agent exec --message-file task.md --cwd ./repo",
            "Read a prompt file and set the workspace.",
          ],
          [
            'openclaw agent exec "Summarize this repo" --model openai/gpt-6-astra --fallback anthropic/claude-sonnet-4-6 --json',
            "Use an explicit fallback chain and JSON output.",
          ],
          [
            'openclaw agent exec "Inspect this repo" --model ollama/qwen3.5:9b --code-mode code --local-model-lean --json',
            "Force Code Mode with the lean local-model tool surface.",
          ],
        ])}\n\n${theme.muted("Docs:")} ${formatDocsLink("/cli/agent#agent-exec", "docs.openclaw.ai/cli/agent#agent-exec")}`,
    )
    .action(async (message: string | undefined, opts, command): Promise<void> => {
      const parentOpts = command.parent?.opts() as
        | {
            messageFile?: string;
            model?: string;
            thinking?: string;
            timeout?: string;
            json?: boolean;
          }
        | undefined;
      const execOpts = {
        ...opts,
        messageFile: opts.messageFile ?? parentOpts?.messageFile,
        model: opts.model ?? parentOpts?.model,
        thinking: opts.thinking ?? parentOpts?.thinking,
        // Exec --timeout defaults to "600"; inherit a parent flag only when the
        // leaf source is default. An explicit nested --timeout must win.
        timeout: inheritOptionFromParent<string>(command, "timeout") ?? opts.timeout,
        json: opts.json === true || parentOpts?.json === true,
      };
      const [
        { defaultRuntime },
        { runCommandWithRuntime },
        { agentExecCommand },
        { requestExitAfterOneShotOutput },
      ] = await Promise.all([
        import("../../runtime.js"),
        import("../cli-utils.js"),
        import("../../commands/agent-exec.js"),
        import("../one-shot-exit.js"),
      ]);
      await runCommandWithRuntime(defaultRuntime, async () => {
        const result = await agentExecCommand(message, execOpts, defaultRuntime);
        if (result.exitCode !== 0) {
          defaultRuntime.exit(result.exitCode, { resetStream: process.stderr });
          return;
        }
        requestExitAfterOneShotOutput(defaultRuntime, result.exitCode);
      });
    });
}