/**
 * ⚠️ NO IMPORTS except modes.ts - this file is imported by Next.js and must avoid pulling in backend code.
 * All shared constants, types, and data used by both the Next.js app and the action runtime live here.
 * Other files in action/ re-export from this file for backward compatibility.
 */

import { type } from "arktype";
import type { Mode } from "./modes.ts";

// mcp name constant
export const ghPullfrogMcpName = "gh_pullfrog";

export interface AgentManifest {
  displayName: string;
  apiKeyNames: string[];
  url: string;
}

// agent manifest - static metadata about available agents
export const agentsManifest = {
  claude: {
    displayName: "Claude Code",
    apiKeyNames: ["anthropic_api_key"],
    url: "https://claude.com/claude-code",
  },
  codex: {
    displayName: "Codex CLI",
    apiKeyNames: ["openai_api_key"],
    url: "https://platform.openai.com/docs/guides/codex",
  },
  cursor: {
    displayName: "Cursor CLI",
    apiKeyNames: ["cursor_api_key"],
    url: "https://cursor.com/",
  },
  gemini: {
    displayName: "Gemini CLI",
    apiKeyNames: ["google_api_key", "gemini_api_key"],
    url: "https://ai.google.dev/gemini-api/docs",
  },
} as const satisfies Record<string, AgentManifest>;

// agent name type - union of agent slugs
export type AgentName = keyof typeof agentsManifest;
export const AgentName = type.enumerated(...Object.keys(agentsManifest));

export type AgentApiKeyName = (typeof agentsManifest)[AgentName]["apiKeyNames"][number];

// discriminated union for payload event based on trigger
// note: all events use issue_number for consistency (PRs are issues in GitHub's API)
export type PayloadEvent =
  | {
      trigger: "pull_request_opened";
      issue_number: number;
      pr_title: string;
      pr_body: string | null;
      branch: string;
      [key: string]: any;
    }
  | {
      trigger: "pull_request_review_requested";
      issue_number: number;
      pr_title: string;
      pr_body: string | null;
      branch: string;
      [key: string]: any;
    }
  | {
      trigger: "pull_request_review_submitted";
      issue_number: number;
      review_id: number;
      review_body: string | null;
      review_state: string;
      review_comments: any[];
      context: any;
      branch: string;
      [key: string]: any;
    }
  | {
      trigger: "pull_request_review_comment_created";
      issue_number: number;
      pr_title: string;
      comment_id: number;
      comment_body: string;
      thread?: any;
      branch: string;
      [key: string]: any;
    }
  | {
      trigger: "issues_opened";
      issue_number: number;
      issue_title: string;
      issue_body: string | null;
      [key: string]: any;
    }
  | {
      trigger: "issues_assigned";
      issue_number: number;
      issue_title: string;
      issue_body: string | null;
      [key: string]: any;
    }
  | {
      trigger: "issues_labeled";
      issue_number: number;
      issue_title: string;
      issue_body: string | null;
      [key: string]: any;
    }
  | {
      trigger: "issue_comment_created";
      comment_id: number;
      comment_body: string;
      issue_number: number;
      branch?: string;
      [key: string]: any;
    }
  | {
      trigger: "check_suite_completed";
      issue_number: number;
      pr_title: string;
      pr_body: string | null;
      pull_request: any;
      branch: string;
      check_suite: {
        id: number;
        head_sha: string;
        head_branch: string | null;
        status: string | null;
        conclusion: string | null;
        url: string;
      };
      [key: string]: any;
    }
  | {
      trigger: "workflow_dispatch";
      [key: string]: any;
    };

// payload type for agent execution
export type Payload = {
  "~pullfrog": true;

  /**
   * Agent slug identifier (e.g., "claude", "codex", "gemini")
   */
  readonly agent: AgentName | null;

  /**
   * The prompt/instructions for the agent to execute
   */
  readonly prompt: string;

  /**
   * Event data from webhook payload.
   * Discriminated union based on trigger field.
   */
  readonly event: PayloadEvent;

  /**
   * Execution mode configuration
   */
  modes: readonly Mode[];

  /**
   * Optional IDs of the issue, PR, or comment that the agent is working on
   */
  readonly comment_id?: number | null;
  readonly issue_id?: number | null;
  readonly pr_id?: number | null;
};