import { useValidatedBody, useValidatedParams, z, zh } from 'h3-zod';
import prisma from '~~/lib/prisma';

export default defineEventHandler(async (event) => {
  const user = await requireUserSession(event);

  if (user.user.role !== 'ADMIN') {
    throw createError({
      status: 403,
      statusText: 'Not allowed!'
    });
  }

  const { huntId } = await useValidatedParams(
    event,
    z.object({
      huntId: zh.numAsString
    })
  );

  const { userId } = await useValidatedBody(
    event,
    z.object({
      userId: z.int().gt(0)
    })
  );

  const hunt = await prisma.hunt.findUnique({
    where: {
      id: huntId,
      OR: [
        {
          creatorId: user.user.id
        },
        {
          members: {
            some: {
              memberId: user.user.id
            }
          }
        }
      ]
    },
    select: {
      id: true,
      members: {
        select: {
          memberId: true
        },
        where: {
          memberId: userId
        },
        take: 1
      }
    }
  });

  if (!hunt) {
    throw createError({ status: 404, statusText: 'Not found!' });
  }

  const newUser = await prisma.user.findUnique({
    select: {
      id: true,
      role: true
    },
    where: {
      id: userId,
      teamsOwner: {
        none: {
          huntId
        }
      },
      teamsMember: {
        none: {
          team: {
            huntId
          }
        }
      },
      huntsMember: {
        none: {
          huntId
        }
      },
      huntsCreated: {
        none: {
          id: huntId
        }
      }
    }
  });

  if (!newUser) {
    throw createError({ status: 409, statusText: 'User is already member!' });
  }

  await prisma.huntMember.create({
    data: {
      huntId: hunt.id,
      memberId: newUser.id
    }
  });
  if (newUser.role !== 'ADMIN') {
    await prisma.user.update({
      where: {
        id: newUser.id
      },
      data: {
        role: 'ADMIN'
      }
    });
  }

  return { success: true };
});