import { z } from "zod";

export const courseSchema = z.object({
  name: z.string().min(1, "课程名称不能为空"),
  description: z.string().optional(),
});

export const classroomSchema = z.object({
  name: z.string().min(1, "班级名称不能为空"),
  description: z.string().optional(),
  courseId: z.number().int().positive(),
});

export const assignmentSchema = z.object({
  title: z.string().min(1, "作业标题不能为空"),
  description: z.string().optional(),
  courseId: z.number().int().positive(),
  classroomId: z.number().int().positive(),
  gradingCriteria: z.string().optional(),
  autoEvaluate: z.boolean().optional(),
  formSchema: z
    .object({
      fields: z
        .array(
          z.object({
            name: z.string().min(1),
            label: z.string().min(1),
            type: z.enum(["text", "textarea"]).default("text"),
            placeholder: z.string().optional(),
            required: z.boolean().optional(),
          }),
        )
        .default([]),
      file_upload: z
        .object({
          accept: z.array(z.string()).default([".pdf"]),
          label: z.string().optional(),
        })
        .default({ accept: [".pdf"], label: "上传 PDF 文件" }),
    })
    .default({
      fields: [
        {
          name: "student_id",
          label: "学号",
          type: "text",
          placeholder: "请输入学号",
          required: true,
        },
        {
          name: "student_name",
          label: "姓名",
          type: "text",
          placeholder: "请输入姓名",
          required: true,
        },
      ],
      file_upload: { accept: [".pdf"], label: "上传 PDF 文件" },
    }),
});

export const submissionSchema = z.object({
  formPayload: z.record(z.any()).optional(),
  studentId: z.string().min(1, "学号不能为空"),
  studentName: z.string().min(1, "姓名不能为空"),
});

export const assignmentUpdateSchema = z.object({
  gradingCriteria: z.string().nullable().optional(),
  autoEvaluate: z.boolean().optional(),
});