import { z } from "zod";

const MAX_FILE_SIZE = 5 * 1024 * 1024; // 5MB
const ALLOWED_TYPES = [
  "application/pdf",
  "image/png",
  "image/jpg",
  "image/jpeg",
];


export const ExpenseSchema = (expenseTypes) => {
  return z
    .object({
      projectId: z.string().min(1, { message: "Project is required" }),
      expensesTypeId: z.string().min(1, { message: "Expense type is required" }),
      paymentModeId: z.string().min(1, { message: "Payment mode is required" }),
      paidById: z.string().min(1, { message: "Employee name is required" }),
      transactionDate: z.string().min(1, { message: "Date is required" }),
      transactionId: z.string().optional(),
      description: z.string().min(1, { message: "Description is required" }),
      location: z.string().min(1, { message: "Location is required" }),
      supplerName: z.string().min(1, { message: "Supplier name is required" }),
      amount: z
        .coerce
        .number({ invalid_type_error: "Amount is required and must be a number" })
        .min(1, "Amount must be Enter")
        .refine((val) => /^\d+(\.\d{1,2})?$/.test(val.toString()), {
          message: "Amount must have at most 2 decimal places",
        }),
      noOfPersons: z.coerce
  .number()
  .optional(),
      billAttachments: z
        .array(
          z.object({
            fileName: z.string().min(1, { message: "Filename is required" }),
            base64Data: z.string().nullable(),
            contentType: z.string().refine((val) => ALLOWED_TYPES.includes(val), {
              message: "Only PDF, PNG, JPG, or JPEG files are allowed",
            }),
            fileSize: z.number().max(MAX_FILE_SIZE, {
              message: "File size must be less than or equal to 5MB",
            }),
            description: z.string().optional(),
          })
        )
        .nonempty({ message: "At least one file attachment is required" }),
    })
    .refine(
      (data) => {
        return !data.projectId || (data.paidById && data.paidById.trim() !== "");
      },
      {
        message: "Please select who paid (employee)",
        path: ["paidById"],
      }
    )
    .superRefine((data, ctx) => {
      const expenseType = expenseTypes.find((et) => et.id === data.expensesTypeId);
      if (expenseType?.noOfPersonsRequired && (!data.noOfPersons || data.noOfPersons < 1)) {
        ctx.addIssue({
          code: z.ZodIssueCode.custom,
          message: "No. of Persons is required and must be at least 1",
          path: ["noOfPersons"],
        });
      }
    });
};

export const defaultExpense = {
      projectId: "",
      expensesTypeId: "",
      paymentModeId: "",
      paidById: "",
      transactionDate: "",
      transactionId: "",
      description: "",
      location: "",
      supplerName: "",
      amount: "",
      noOfPersons: "",
      billAttachments: [],
    }

export const ActionSchema = z.object({
  comment : z.string().min(1,{message:"Please leave comment"}),
   selectedStatus: z.string().min(1, { message: "Please select a status" }),
})