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";

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()
    .describe("optional array of label names to apply to the issue")
    .optional(),
  assignees: type.string
    .array()
    .describe("optional array of usernames to assign to the issue")
    .optional(),
});

export function IssueTool(ctx: ToolContext) {
  return tool({
    name: "create_issue",
    description: "Create a new Gitea issue",
    parameters: Issue,
    execute: execute(async (params) => {
      const result = await ctx.gitea.rest.issue.issueCreateIssue({
        owner: ctx.repo.owner,
        repo: ctx.repo.name,
        body: {
          title: params.title,
          body: fixDoubleEscapedString(params.body),
          assignees: params.assignees,
        },
      });

      log.info(`» created issue #${result.data.number}`);

      return {
        success: true,
        number: result.data.number,
        url: result.data.html_url,
        title: result.data.title,
        state: result.data.state,
        labels: result.data.labels
          ?.map((l) => (typeof l === "string" ? l : l.name))
          .filter((n): n is string => n !== undefined),
        assignees: result.data.assignees
          ?.map((a) => a.login)
          .filter((n): n is string => n !== undefined),
      };
    }),
  });
}