71 lines
2.0 KiB
Go
71 lines
2.0 KiB
Go
package mcfetch
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import (
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"encoding/json"
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"errors"
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"net/http"
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"time"
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)
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// AsyncPlayerFetcher is responsible for fetching Minecraft player data asynchronously
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type AsyncPlayerFetcher struct {
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playerName string
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retries int
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retryDelay time.Duration
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timeout time.Duration
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cache ICache
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}
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// NewAsyncPlayerFetcher creates a new AsyncPlayerFetcher with an abstract cache (ICache)
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func NewAsyncPlayerFetcher(playerName string, cache ICache, retries int, retryDelay time.Duration, timeout time.Duration) *AsyncPlayerFetcher {
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cache.Init()
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return &AsyncPlayerFetcher{
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playerName: playerName,
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retries: retries,
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retryDelay: retryDelay,
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timeout: timeout,
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cache: cache,
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}
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}
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// FetchPlayerData fetches the player data asynchronously using channels
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func (pf *AsyncPlayerFetcher) FetchPlayerData(resultChan chan *FetchedPlayerResult, errorChan chan error) {
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go func() {
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cachedData, found := pf.cache.Get(pf.playerName)
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if found {
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resultChan <- (*FetchedPlayerResult)(cachedData)
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return
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}
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// If not in cache, make request to Mojang API
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var player FetchedPlayerResult
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for i := 0; i < pf.retries; i++ {
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resp, err := pf.makeRequest(pf.playerName)
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if err == nil {
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defer resp.Body.Close()
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// Decode the response into FetchedPlayerResult
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if err := json.NewDecoder(resp.Body).Decode(&player); err == nil {
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// Store the result in the cache and return the data
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pf.cache.Set(pf.playerName, (*CacheResult)(&player))
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pf.cache.Sync()
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resultChan <- &player
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return
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}
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}
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time.Sleep(pf.retryDelay)
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}
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errorChan <- errors.New("Failed to fetch player data after retries")
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}()
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}
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// makeRequest performs the HTTP request to Mojang API
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func (pf *AsyncPlayerFetcher) makeRequest(playerName string) (*http.Response, error) {
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client := http.Client{Timeout: pf.timeout}
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url := "https://api.mojang.com/users/profiles/minecraft/" + playerName
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resp, err := client.Get(url)
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if err != nil || resp.StatusCode != http.StatusOK {
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return nil, errors.New("Request failed")
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}
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return resp, nil
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}
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