"use server"

import { revalidatePath } from "next/cache"
import { flattenError } from "zod"
import { getI18n } from "@/i18n/server"
import {
  buildCreatePersonSchema,
  buildUpdatePersonSchema,
  type CreatePersonFormType,
  type UpdatePersonFormType,
} from "@/schemas/person.schema"
import {
  buildUnifiedCreateSchema,
  type UnifiedCreateFormType,
} from "@/schemas/user.schema"
import {
  createPersonUseCase,
  createPersonUserUseCase,
  updatePersonUseCase,
} from "@/use-cases/person.use-cases"

import { localizePersonFieldErrors } from "./person.messages"
import { localizeUnifiedCreateFieldErrors } from "./user.messages"

const PERSON_USER_PATH = "/admin/users"

export async function createNewPerson(formData: CreatePersonFormType) {
  const { dictionary } = await getI18n()
  const copy = dictionary.inventory.people
  const validatedFields = buildCreatePersonSchema(copy.schema).safeParse(
    formData,
  )

  if (!validatedFields.success) {
    return {
      success: false,
      errors: flattenError(validatedFields.error).fieldErrors,
    }
  }

  try {
    const result = await createPersonUseCase(validatedFields.data)

    if (!result.success) {
      return {
        ...result,
        errors: localizePersonFieldErrors(result.errors, copy.actions),
        message: copy.actions.createFailure,
      }
    }

    revalidatePath("/people")

    return {
      success: true,
      message: copy.actions.createSuccess,
    }
  } catch (error) {
    console.error("Database error:", error)
    return {
      success: false,
      message: copy.actions.createFailure,
    }
  }
}

export async function createPersonUserAction(formData: UnifiedCreateFormType) {
  const { dictionary } = await getI18n()
  const userCopy = dictionary.admin.users
  const schemaCopy = {
    ...userCopy.schema,
    ...dictionary.inventory.people.schema,
  }
  const validatedFields =
    buildUnifiedCreateSchema(schemaCopy).safeParse(formData)

  if (!validatedFields.success) {
    return {
      success: false,
      errors: flattenError(validatedFields.error).fieldErrors,
    }
  }

  try {
    const result = await createPersonUserUseCase(validatedFields.data)

    if (!result.success) {
      return {
        ...result,
        errors: localizeUnifiedCreateFieldErrors(
          result.errors,
          userCopy.actions,
          schemaCopy,
        ),
        message: userCopy.actions.createFailure,
      }
    }

    revalidatePath(PERSON_USER_PATH)

    return { success: true, message: userCopy.actions.createSuccess }
  } catch (error) {
    console.error("Database error:", error)
    return { success: false, message: userCopy.actions.createFailure }
  }
}

export async function updatePerson(formData: UpdatePersonFormType) {
  const { dictionary } = await getI18n()
  const copy = dictionary.inventory.people
  const validatedFields = buildUpdatePersonSchema(copy.schema).safeParse(
    formData,
  )

  if (!validatedFields.success) {
    return {
      success: false,
      errors: flattenError(validatedFields.error).fieldErrors,
    }
  }

  try {
    const result = await updatePersonUseCase(validatedFields.data)

    if (!result.success) {
      return {
        ...result,
        errors: localizePersonFieldErrors(result.errors, copy.actions),
        message: copy.actions.updateFailure,
      }
    }

    revalidatePath("/people")

    return {
      success: true,
      message: copy.actions.updateSuccess,
    }
  } catch (error) {
    console.error("Database error:", error)
    return {
      success: false,
      message: copy.actions.updateFailure,
    }
  }
}