package eu.dnetlib.uoamonitorservice.controllers;

import eu.dnetlib.uoaadmintoolslibrary.entities.Portal;
import eu.dnetlib.uoaadmintoolslibrary.handlers.ForbiddenException;
import eu.dnetlib.uoaadmintoolslibrary.services.PortalService;
import eu.dnetlib.uoamonitorservice.dto.StakeholderFull;
import eu.dnetlib.uoamonitorservice.dto.TopicFull;
import eu.dnetlib.uoamonitorservice.entities.Stakeholder;
import eu.dnetlib.uoamonitorservice.primitives.Visibility;
import eu.dnetlib.uoamonitorservice.service.StakeholderService;
import eu.dnetlib.uoamonitorservice.service.TopicService;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.*;

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

@RestController
@CrossOrigin(origins = "*")
public class StakeholderController {
    private final Logger log = LogManager.getLogger(this.getClass());

    private final PortalService portalService;
    private final StakeholderService stakeholderService;

    @Autowired
    public StakeholderController(PortalService portalService, StakeholderService stakeholderService) {
        this.portalService = portalService;
        this.stakeholderService = stakeholderService;
    }

    @PreAuthorize("isAuthenticated()")
    @RequestMapping(value = "/stakeholder/alias", method = RequestMethod.GET)
    public List<String> getAllReservedStakeholderAlias() {
        List<String> stakeholderAlias = this.stakeholderService.getAllAliases();
        stakeholderAlias.add("all");
        stakeholderAlias.add("default");
        stakeholderAlias.add("alias");
        return stakeholderAlias;
    }

    @PreAuthorize("hasAnyAuthority(" +
            "@AuthorizationService.PORTAL_ADMIN, " +
            "@AuthorizationService.curator(#stakeholder.getType()))")
    @RequestMapping(value = "/build-stakeholder", method = RequestMethod.POST)
    public StakeholderFull buildStakeholder(@RequestBody StakeholderFull stakeholder) {
        log.debug("build stakeholder");
        log.debug("Alias: " + stakeholder.getAlias());
        Portal portal = portalService.getPortal(stakeholder.getAlias());
        if (portal == null) {
            portal = new Portal();
            portal.setPid(stakeholder.getAlias());
            portal.setName(stakeholder.getName());
            portal.setType(stakeholder.getType());
            portalService.insertPortal(portal);
        }
        return this.stakeholderService.buildStakeholder(stakeholder);
    }

    @PreAuthorize("hasAnyAuthority(" + "@AuthorizationService.PORTAL_ADMIN)")
    @RequestMapping(value = "/stakeholder/all", method = RequestMethod.GET)
    public List<Stakeholder> getAllStakeholders(@RequestParam(required = false) String type) {
        return this.stakeholderService.getAll(type);
    }

    @PreAuthorize("isAuthenticated()")
    @RequestMapping(value = "/stakeholder/default", method = RequestMethod.GET)
    public List<StakeholderFull> getAllDefaultStakeholders(@RequestParam(required = false) String type) {
        return this.stakeholderService.getAllDefaultByRole(type).stream()
                .map(this.stakeholderService::getFullStakeholder)
                .collect(Collectors.toList());
    }

    @RequestMapping(value = "/stakeholder", method = RequestMethod.GET)
    public List<Stakeholder> getVisibleStakeholders(@RequestParam(required = false) String type,
                                                    @RequestParam(required = false) String defaultId) {
        return stakeholderService.getStakeholdersByTypeAndRole(type, defaultId, false);
    }

    @PreAuthorize("isAuthenticated()")
    @RequestMapping(value = "/my-stakeholder", method = RequestMethod.GET)
    public List<Stakeholder> getManagedStakeholders(@RequestParam(required = false) String type) {
        return stakeholderService.getStakeholdersByTypeAndRole(type, null, true);
    }

    @RequestMapping(value = "/stakeholder/{alias:.+}", method = RequestMethod.GET)
    public StakeholderFull getStakeholder(@PathVariable("alias") String alias) {
        StakeholderFull stakeholder = this.stakeholderService.getFullStakeholder(this.stakeholderService.findByAlias(alias));
        if (stakeholder == null) {
            throw new ForbiddenException("Get stakeholder: You are not authorized to access stakeholder with alias: " + alias);
        }
        return stakeholder;
    }

    @PreAuthorize("hasAnyAuthority("
            + "@AuthorizationService.PORTAL_ADMIN, "
            + "@AuthorizationService.curator(#stakeholder.getType()), "
            + "@AuthorizationService.manager(#stakeholder.getType(), #stakeholder.getAlias()) "
            + ")")
    @RequestMapping(value = "/save", method = RequestMethod.POST)
    public StakeholderFull saveStakeholder(@RequestBody StakeholderFull stakeholder) {
        log.debug("save stakeholder");
        log.debug("Alias: " + stakeholder.getAlias() + " - Id: " + stakeholder.getId());
        return this.stakeholderService.getFullStakeholder(this.stakeholderService.save(new Stakeholder(stakeholder)));
    }

    @PreAuthorize("isAuthenticated()")
    @RequestMapping(value = "/{stakeholderId}/delete", method = RequestMethod.DELETE)
    public boolean deleteStakeholder(@PathVariable("stakeholderId") String id) {
        log.debug("delete stakeholder");
        log.debug("Id: " + id);
        Portal portal = portalService.getPortal(this.stakeholderService.delete(id));
        if (portal != null) {
            portalService.deletePortal(portal.getId());
        }
        return true;
    }

    @PreAuthorize("isAuthenticated()")
    @RequestMapping(value = "/{stakeholderId}/change-visibility", method = RequestMethod.POST)
    public StakeholderFull changeStakeholderVisibility(@PathVariable("stakeholderId") String stakeholderId,
                                                   @RequestParam("visibility") Visibility visibility, @RequestParam(defaultValue = "false") Boolean propagate) {
        log.debug("change stakeholder visibility: " + visibility + " - toggle propagate: " + propagate);
        log.debug("Stakeholder: " + stakeholderId);
        Stakeholder stakeholder = this.stakeholderService.findByPath(stakeholderId);
        return this.stakeholderService.changeVisibility(stakeholder, visibility, propagate);
    }
}