package eu.dnetlib.scholix.api.controller;

import eu.dnetlib.common.controller.AbstractDnetController;
import eu.dnetlib.dhp.schema.sx.api.model.v1.LinkPublisher;
import eu.dnetlib.scholix.api.ScholixException;
import eu.dnetlib.scholix.api.index.ScholixIndexManager;

import io.micrometer.core.annotation.Timed;
import io.swagger.annotations.Api;
import io.swagger.v3.oas.annotations.Operation;
import org.apache.commons.lang3.tuple.Pair;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;


@RestController
@RequestMapping("/v1")
@Tag(tags = {
        "Datasources"
})
public class DatasourceV1  extends AbstractDnetController {

    @Autowired
    private ScholixIndexManager manager;

    @Timed(value = "scholix.v1.datasources", description = "Time taken to return all datasources on Version 1.0 of Scholix")
    @Operation(
            summary = "Get all Datasources",
            description = "returns a list of all datasources")
    @GetMapping("/listDatasources")
    public List<LinkPublisher> getDatasources() throws ScholixException {


        final List<Pair<String, Long>> result = manager.totalLinksByProvider(null);

        if (result == null)
            return new ArrayList<>();

        return result.stream().map(p -> new LinkPublisher().name(p.getKey()).totalRelationships(p.getValue().intValue())).collect(Collectors.toList());


    }
}