// Copyright 2022 The Prometheus Authors
// 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 vultr

import (
	"fmt"
	"net/http"
	"net/http/httptest"
	"testing"
)

// SDMock is the interface for the Vultr mock
type SDMock struct {
	t      *testing.T
	Server *httptest.Server
	Mux    *http.ServeMux
}

// NewSDMock returns a new Vultr mock server.
func NewSDMock(t *testing.T) *SDMock {
	return &SDMock{
		t: t,
	}
}

// Endpoint returns the URI to the mock server.
func (m *SDMock) Endpoint() string {
	return m.Server.URL + "/"
}

// Setup creates the mock server.
func (m *SDMock) Setup() {
	m.Mux = http.NewServeMux()
	m.Server = httptest.NewServer(m.Mux)
}

// ShutdownServer shuts down the mock server.
func (m *SDMock) ShutdownServer() {
	m.Server.Close()
}

const APIKey = "ABCBTDG35OTGH2UKCC3S6CNMDUPCN3ZWSGFQ"

// HandleInstanceList mocks vultr instances list.
func (m *SDMock) HandleInstanceList() {
	m.Mux.HandleFunc("/v2/instances", func(w http.ResponseWriter, r *http.Request) {
		if r.Header.Get("Authorization") != fmt.Sprintf("Bearer %s", APIKey) {
			w.WriteHeader(http.StatusForbidden)
			return
		}

		w.Header().Add("content-type", "application/json; charset=utf-8")
		w.WriteHeader(http.StatusOK)

		fmt.Fprint(w, `
{
    "instances": [
        {
            "id": "dbdbd38c-9884-4c92-95fe-899e50dee717",
            "os": "Marketplace",
            "ram": 4096,
            "disk": 128,
            "main_ip": "149.28.234.27",
            "vcpu_count": 2,
            "region": "ewr",
            "plan": "vhf-2c-4gb",
            "date_created": "2022-03-10T02:25:30+00:00",
            "status": "active",
            "allowed_bandwidth": 3000,
            "netmask_v4": "255.255.254.0",
            "gateway_v4": "149.28.234.1",
            "power_status": "running",
            "server_status": "ok",
            "v6_network": "",
            "v6_main_ip": "",
            "v6_network_size": 0,
            "label": "np-2-eae38a19b0f3",
            "internal_ip": "10.1.96.5",
            "kvm": "https://my.vultr.com/subs/vps/novnc/api.php?data=djJ8Q2k2NlVpNUlZNE5kM3NZMWdBNzFKUkVadDBDU3ItTEJ8-yNWBdMn1AWPqX-EnpTVbA1qBeP0txBZbahSOh3UtHIL2p0fZKEdFJwFNjWtvBKC9BGvJkoJdWBoo7hF-6RzavdUKPD3KIU5xD_T6keV8X-PPukPgXMuSUaAqurAuJvwAWXcTcodBjaIH961xgbvfkFyqVl0ZgHf3ErZQE-EmpZ0Jc3uF1DO2McJ4UL8KUvHLwa-ZDUZ_AtWJjQWsjNkxjvOiA",
            "hostname": "np-2-eae38a19b0f3",
            "os_id": 426,
            "app_id": 0,
            "image_id": "vke-worker",
            "firewall_group_id": "",
            "features": ["backups"],
            "tags": ["tag1", "tag2", "tag3"]
        },
        {
            "id": "fccb117c-62f7-4b17-995d-a8e56dd30b33",
            "os": "Marketplace",
            "ram": 4096,
            "disk": 128,
            "main_ip": "45.63.1.222",
            "vcpu_count": 2,
            "region": "ewr",
            "plan": "vhf-2c-4gb",
            "date_created": "2022-03-10T02:25:32+00:00",
            "status": "active",
            "allowed_bandwidth": 3000,
            "netmask_v4": "255.255.254.0",
            "gateway_v4": "45.63.0.1",
            "power_status": "running",
            "server_status": "ok",
            "v6_network": "",
            "v6_main_ip": "",
            "v6_network_size": 0,
            "label": "np-2-fd0714b5fe42",
            "internal_ip": "10.1.96.6",
            "kvm": "https://my.vultr.com/subs/vps/novnc/api.php?data=djJ8R0tzbmI0VWVfSDR6VE51Q0FGUTBCamwyTFNzZDNkVTF8Zwm93t6L2BLTYSNmM0g0Ppf43r71aIbqLiJCx6_1NuCugUqIKz8POshH91vi6XXDorpb3hYTk8RrJWQbaFMak7XbbfMObzsrFxKAQUVGfbjTBIHCKftxNIXeQOp1fEIDa3p-vkfSxEpx6ZX8nChGYYSVuOjS1twV6oI_IKtHXKdFJiVFz0Unay_K3HuXW_H2wrYSjmAChloR-eA1jSmBXLccJQ",
            "hostname": "np-2-fd0714b5fe42",
            "os_id": 426,
            "app_id": 0,
            "image_id": "vke-worker",
            "firewall_group_id": "",
            "features": [],
            "tags": []
        },
        {
            "id": "c4e58767-f61b-4c5e-9bce-43761cc04868",
            "os": "Marketplace",
            "ram": 4096,
            "disk": 128,
            "main_ip": "149.28.237.151",
            "vcpu_count": 2,
            "region": "ewr",
            "plan": "vhf-2c-4gb",
            "date_created": "2022-03-10T02:25:33+00:00",
            "status": "active",
            "allowed_bandwidth": 3000,
            "netmask_v4": "255.255.254.0",
            "gateway_v4": "149.28.236.1",
            "power_status": "running",
            "server_status": "ok",
            "v6_network": "",
            "v6_main_ip": "",
            "v6_network_size": 0,
            "label": "np-2-d04e7829fa43",
            "internal_ip": "10.1.96.7",
            "kvm": "https://my.vultr.com/subs/vps/novnc/api.php?data=djJ8NFEzbFZmV2hOUWNrc2R4bndnckhFQTJ3ME1yWmxVeW98P-p-KeyNtP73wzVvuWZSOrV5PvQDiBmYyB3cp99btIy5nczmvX8DOGSChbEldk3idKNdFLQMIieWnpR5xU5K-dMYlL6n6oYv2u-rh8zxS6-8hQsSbL2OsoywNPoLpQ3xPkT9Rb-yPrZX4fDLbt8yPVKDHqHO0GB-TxVPemueovfkkUZMXSraAXgHtl1YgK2uLMQf1WBFVzgwnQ7MYcfMGGYFQw",
            "hostname": "np-2-d04e7829fa43",
            "os_id": 426,
            "app_id": 0,
            "image_id": "vke-worker",
            "firewall_group_id": "",
            "features": [],
            "tags": []
        }
    ],
    "meta": {
        "total": 3,
        "links": {
            "next": "",
            "prev": ""
        }
    }
}
`)
	})
}
