import { describe, expect, it } from "vitest";
import {
  normalizeAdjustedPlanResponse,
  normalizeTrainingPlanResponse,
} from "./trainingPlan";

describe("normalizeTrainingPlanResponse", () => {
  it("accepts canonical title/exercises output", () => {
    const result = normalizeTrainingPlanResponse({
      content: JSON.stringify({
        title: "7天训练计划",
        exercises: [
          {
            day: 1,
            name: "正手影子挥拍",
            category: "影子挥拍",
            duration: 15,
            description: "完成正手挥拍练习",
            tips: "保持重心稳定",
            sets: 3,
            reps: 12,
          },
        ],
      }),
      fallbackTitle: "fallback",
    });

    expect(result.title).toBe("7天训练计划");
    expect(result.exercises).toHaveLength(1);
    expect(result.exercises[0]?.category).toBe("影子挥拍");
  });

  it("normalizes qwen day map output into plan exercises", () => {
    const result = normalizeTrainingPlanResponse({
      content: JSON.stringify({
        day_1: {
          duration_minutes: 45,
          focus: "基础握拍与正手影子挥拍",
          exercises: [
            {
              name: "握拍方式学习",
              description: "学习大陆式与东方式握拍",
              duration_minutes: 10,
            },
            {
              name: "原地小碎步热身与放松",
              description: "30秒快速小碎步 + 30秒休息",
              duration_minutes: 10,
            },
          ],
        },
      }),
      fallbackTitle: "7天训练计划",
    });

    expect(result.title).toBe("7天训练计划");
    expect(result.exercises).toHaveLength(2);
    expect(result.exercises[0]).toMatchObject({
      day: 1,
      name: "握拍方式学习",
      duration: 10,
      sets: 3,
      reps: 10,
    });
    expect(result.exercises[1]?.category).toBe("脚步移动");
  });

  it("derives a fallback exercise when a day section has no exercises array", () => {
    const result = normalizeTrainingPlanResponse({
      content: JSON.stringify({
        day_1: {
          duration_minutes: 35,
          focus: "基础脚步与启动速度",
          summary: "围绕启动速度和小碎步调整展开",
        },
      }),
      fallbackTitle: "7天训练计划",
    });

    expect(result.exercises).toHaveLength(1);
    expect(result.exercises[0]).toMatchObject({
      day: 1,
      name: "基础脚步与启动速度",
    });
  });

  it("returns a readable error when no exercises can be derived", () => {
    expect(() => normalizeTrainingPlanResponse({
      content: JSON.stringify({
        title: "空计划",
        exercises: [],
      }),
      fallbackTitle: "fallback",
    })).toThrow("训练计划结果为空，请重试或缩小训练重点后再生成。");
  });
});

describe("normalizeAdjustedPlanResponse", () => {
  it("fills missing adjustment notes for day map output", () => {
    const result = normalizeAdjustedPlanResponse({
      content: JSON.stringify({
        day_1: {
          duration_minutes: 30,
          focus: "脚步移动",
          exercises: [
            {
              name: "交叉步移动",
              description: "左右移动并快速回位",
              duration_minutes: 12,
            },
          ],
        },
      }),
      fallbackTitle: "当前训练计划",
    });

    expect(result.title).toBe("当前训练计划");
    expect(result.adjustmentNotes).toContain("已根据最近分析结果调整");
    expect(result.exercises[0]).toMatchObject({
      day: 1,
      name: "交叉步移动",
      category: "脚步移动",
    });
  });
});