Issue #18, #19 resolved

Added pagination and sorting to the /api/pokemon endpoint

src/main/java/nl/utwente/mod4/pokemon/routes/PokemonRoute.java

+package nl.utwente.mod4.pokemon.routes;
+
+import jakarta.ws.rs.*;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
+import java.util.*;
+import nl.utwente.mod4.pokemon.dao.PokemonDao;
+import nl.utwente.mod4.pokemon.model.Pokemon;
+import nl.utwente.mod4.pokemon.model.ResourceCollection;
+
+@Path("/pokemon")
+public class PokemonRoute {
+    @GET
+    @Produces(MediaType.APPLICATION_JSON)
+    public ResourceCollection<Pokemon> getPokemon(
+            @QueryParam("sortBy") String sortOrder,
+            @QueryParam("pageSize") int pageSize,
+            @QueryParam("pageNumber") int pageNum
+    ) {
+        Integer ps = pageSize > 0 ? pageSize : Integer.MAX_VALUE;
+        Integer pn = pageNum > 0 ? pageNum : 1;
+
+
+        Pokemon [] pokemons =  PokemonDao.INSTANCE.getPokemon(ps, pn).toArray(new Pokemon[0]);
+        if (sortOrder != null && sortOrder.equals("name")) {
+            pokemons = Arrays.stream(pokemons).sorted(Comparator.comparing(p -> p.name)).toArray(Pokemon[]::new);
+
+//            pokemons.sort(Comparator.comparing(pok -> pok.name));
+        }
+        Integer totalPokemons = PokemonDao.INSTANCE.getTotalPokemon();
+        ps = pokemons == null ? 0 : pokemons.length;
+
+        return new ResourceCollection<>(pokemons, ps, pn, totalPokemons);
+    }
+
+    @POST
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Produces(MediaType.APPLICATION_JSON)
+    public Pokemon createNewPokemon(Pokemon pokemon) {
+        if (pokemon.created != null || pokemon.id != null || pokemon.lastUpDate !=null) {
+            throw new BadRequestException();
+        }
+        return PokemonDao.INSTANCE.create(pokemon);
+    }
+
+
+    @GET
+    @Path("/{id}")
+    @Produces(MediaType.APPLICATION_JSON)
+    public Pokemon getPokemonById(@PathParam("id") String id) {
+        Pokemon gotPokemon;
+        try {
+            gotPokemon = PokemonDao.INSTANCE.getPokemon(id);
+        } catch (NotFoundException e) {
+            throw new WebApplicationException(404);
+        }
+
+        return gotPokemon;
+    }
+
+    @DELETE
+    @Path("/{id}")
+    public Response deletePokemonById(@PathParam("id") String id) {
+        PokemonDao.INSTANCE.delete(id);
+        return Response.noContent().build();
+    }
+
+    @PUT
+    @Path("/{id}")
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Produces(MediaType.APPLICATION_JSON)
+    public Pokemon updatePokemon(@PathParam("id") String id, Pokemon updatedPokemon) {
+        if (id == null || !id.equals(updatedPokemon.id))
+            throw new BadRequestException("Id mismatch.");
+        return PokemonDao.INSTANCE.replace(updatedPokemon);
+    }
+}
+