74 lines
1.6 KiB
Go
74 lines
1.6 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"net/url"
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"strconv"
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)
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type mcApiPoller struct {
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Address string
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}
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func (p *mcApiPoller) PollPlayerCount() (PlayerCount, error) {
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url, _ := url.Parse("https://mcapi.us/server/status")
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query := url.Query()
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query.Set("ip", p.Address)
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url.RawQuery = query.Encode()
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res, err := http.Get(url.String())
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if err != nil {
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return PlayerCount{}, fmt.Errorf("http request: %w", err)
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}
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defer res.Body.Close()
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var data struct {
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Players struct {
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Max int `json:"max"`
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Now int `json:"now"`
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Sample []struct {
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Name string `json:"name"`
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Id string `json:"id"`
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} `json:"sample"`
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} `json:"players"`
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}
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err = json.NewDecoder(res.Body).Decode(&data)
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if err != nil {
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return PlayerCount{}, fmt.Errorf("invalid json response: %w", err)
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}
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var count PlayerCount
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for _, player := range data.Players.Sample {
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matched := playerRegex.FindStringSubmatch(player.Name)
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if matched == nil || len(matched) != 3 {
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return PlayerCount{}, fmt.Errorf("match player regex against \"%s\"", player.Name)
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}
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value, err := strconv.Atoi(matched[2])
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if err != nil {
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return PlayerCount{}, fmt.Errorf("parse number: %w", err)
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}
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switch matched[1] {
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case "§6In-game":
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count.Playing = value
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case "§6Queue":
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count.NormalQueue = value
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case "§6Priority queue":
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count.PriorityQueue = value
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default:
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return PlayerCount{}, fmt.Errorf("unknown player \"%s\"", matched[1])
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}
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}
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return count, nil
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}
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func (p *mcApiPoller) String() string {
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return fmt.Sprintf("mcapi[address=%s]", p.Address)
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}
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