/*
 * Copyright 2019 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.optaweb.employeerostering.service.tenant;

import java.time.ZoneId;
import java.util.List;

import javax.validation.Valid;
import javax.validation.constraints.Min;

import org.optaweb.employeerostering.domain.roster.view.RosterStateView;
import org.optaweb.employeerostering.domain.tenant.RosterConstraintConfiguration;
import org.optaweb.employeerostering.domain.tenant.Tenant;
import org.optaweb.employeerostering.domain.tenant.view.RosterConstraintConfigurationView;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;

@RestController
@RequestMapping("/rest/tenant")
@CrossOrigin
@Validated
@Api(tags = "Tenant")
public class TenantController {

    private final TenantService tenantService;

    public TenantController(TenantService tenantService) {
        this.tenantService = tenantService;
    }

    // ************************************************************************
    // Tenant
    // ************************************************************************

    @ApiOperation("Get a list of all tenants")
    @GetMapping("/")
    public ResponseEntity<List<Tenant>> getTenantList() {
        return new ResponseEntity<>(tenantService.getTenantList(), HttpStatus.OK);
    }

    @ApiOperation("Get a tenant by id")
    @GetMapping("/{id}")
    public ResponseEntity<Tenant> getTenant(@PathVariable @Min(0) Integer id) {
        return new ResponseEntity<>(tenantService.getTenant(id), HttpStatus.OK);
    }

    @ApiOperation("Add a new tenant")
    @PostMapping("/add")
    public ResponseEntity<Tenant> createTenant(@RequestBody @Valid RosterStateView initialRosterStateView) {
        return new ResponseEntity<>(tenantService.createTenant(initialRosterStateView), HttpStatus.OK);
    }

    @ApiOperation("Delete a tenant")
    @PostMapping("/remove/{id}")
    public ResponseEntity<Boolean> deleteTenant(@PathVariable @Min(0) Integer id) {
        return new ResponseEntity<>(tenantService.deleteTenant(id), HttpStatus.OK);
    }

    // ************************************************************************
    // RosterConstraintConfiguration
    // ************************************************************************

    @ApiOperation("Get a tenant constraint configuration")
    @GetMapping("/{tenantId}/config/constraint")
    public ResponseEntity<RosterConstraintConfiguration> getRosterConstraintConfiguration(
            @PathVariable @Min(0) Integer tenantId) {
        return new ResponseEntity<>(tenantService.getRosterConstraintConfiguration(tenantId), HttpStatus.OK);
    }

    @ApiOperation("Update a tenant roster parametrization")
    @PostMapping("/{tenantId}/config/constraint/update")
    public ResponseEntity<RosterConstraintConfiguration> updateRosterConstraintConfiguration(
            @RequestBody @Valid RosterConstraintConfigurationView rosterConstraintConfigurationView) {
        return new ResponseEntity<>(
                tenantService.updateRosterConstraintConfiguration(rosterConstraintConfigurationView), HttpStatus.OK);
    }

    // TODO: Where should this be?
    @ApiOperation("Get supported timezones")
    @GetMapping("/supported/timezones")
    public ResponseEntity<List<ZoneId>> getSupportedTimezones() {
        return new ResponseEntity<>(tenantService.getSupportedTimezones(), HttpStatus.OK);
    }
}
