import { type } from "arktype";
import { log } from "../utils/cli.ts";
import { fixDoubleEscapedString } from "../utils/fixDoubleEscapedString.ts";
import type { ToolContext } from "./server.ts";
import { execute, tool } from "./shared.ts";

interface GiteaIssue {
  number: number; html_url: string; title: string; state: string;
  labels?: Array<{ name?: string }>; assignees?: Array<{ login: string }>;
}

export const Issue = type({
  title: type.string.describe("the title of the issue"),
  body: type.string.describe("the body content of the issue"),
  labels: type.string.array().optional(),
  assignees: type.string.array().optional(),
});

export function IssueTool(ctx: ToolContext) {
  return tool({
    name: "create_issue",
    description: "Create a new Gitea issue",
    parameters: Issue,
    execute: execute(async (params) => {
      const r = await ctx.gitea.request(
        "POST /repos/{owner}/{repo}/issues",
        {
          owner: ctx.repo.owner, repo: ctx.repo.name,
          title: params.title, body: fixDoubleEscapedString(params.body),
          ...(params.assignees ? { assignees: params.assignees } : {}),
        }
      );
      const data = r.data as GiteaIssue;
      log.info(`» created issue #${data.number}`);
      return {
        success: true, number: data.number, url: data.html_url, title: data.title, state: data.state,
        labels: data.labels?.map((l) => l.name).filter((n): n is string => n !== undefined),
        assignees: data.assignees?.map((a) => a.login).filter((n): n is string => n !== undefined),
      };
    }),
  });
}