import type { Task } from "../models/task.ts";
import { toKebabCase } from "../models/task.ts";

export function serializeTask(task: Task): string {
  const parts = [
    `title="${task.title}"`,
    `status=${toKebabCase(task.status)}`,
    `priority=${task.priority ?? "unknown"}`,
    `type=${task.taskType || "task"}`,
  ];

  if (task.id) {
    parts.unshift(`id=${task.id}`);
  }

  const description = task.description?.trim();
  if (description) {
    parts.push(`description="${description.replaceAll("\n", "\\n")}"`);
  }

  if (task.dueAt) {
    parts.push(`due="${task.dueAt}"`);
  }

  return `task(${parts.join(", ")})`;
}

export function buildTaskWorkPrompt(task: Task): string {
  const leadLine = task.id
    ? `Work on task ${task.id}: ${task.title}`
    : `Work on task: ${task.title}`;

  const lines = [
    leadLine,
    "",
    `Status: ${toKebabCase(task.status)}`,
    `Priority: ${task.priority ?? "unknown"}`,
  ];

  if (task.description && task.description.trim()) {
    lines.push("", "Context:", task.description.trim());
  }

  return lines.join("\n");
}