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// Package eax queries the EA App API.
package eax
import (
"context"
"encoding/json"
"errors"
"fmt"
"io"
"mime"
"net/http"
"net/url"
"strconv"
)
type Client struct {
// The [net/http.Client] to use for requests. If not provided,
// [net/http.DefaultClient] is used.
Client *http.Client
// The UpdateMgr for requests which require version information.
UpdateMgr *UpdateMgr
}
var ErrVersionRequired = errors.New("client version is required for this endpoint")
// PlayerID contains basic identifiers and names for a player.
type PlayerID struct {
PD uint64 // origin ID
PSD uint64 // ?
DisplayName string // in-game name
Nickname string // social name?
}
// PlayerByPd gets basic information about an Origin ID. If the player does not
// exist, nil will be returned.
func (c *Client) PlayerIDByPD(ctx context.Context, pd uint64) (*PlayerID, error) {
var obj struct {
PlayerByPD *struct {
PD string `json:"pd"`
PSD string `json:"psd"`
DisplayName string `json:"displayName"`
Nickname string `json:"nickname"`
} `json:"playerByPd"`
}
if err := c.gql1(ctx, true, `query { playerByPd (pd: `+strconv.FormatUint(pd, 10)+`) { pd psd displayName nickname } }`, &obj); err != nil {
return nil, err
}
if obj.PlayerByPD == nil {
return nil, nil
}
res := &PlayerID{
DisplayName: obj.PlayerByPD.DisplayName,
Nickname: obj.PlayerByPD.Nickname,
}
if s := obj.PlayerByPD.PD; s != "" {
if v, err := strconv.ParseUint(s, 10, 64); err == nil {
res.PD = v
} else {
return res, fmt.Errorf("parse pd %q: %w", s, err)
}
}
if s := obj.PlayerByPD.PSD; s != "" {
if v, err := strconv.ParseUint(s, 10, 64); err == nil {
res.PD = v
} else {
return res, fmt.Errorf("parse psd %q: %w", s, err)
}
}
return res, nil
}
// gql1 performs a basic GraphQL query.
func (c *Client) gql1(ctx context.Context, ver bool, query string, out any) error {
req, err := c.req(ctx, ver, http.MethodGet, "https://service-aggregation-layer.juno.ea.com/graphql?query="+url.QueryEscape(query), nil)
if err != nil {
return err
}
resp, err := c.do(req)
if err != nil {
return err
}
defer resp.Body.Close()
if mt, _, _ := mime.ParseMediaType(resp.Header.Get("Content-Type")); mt != "application/json" {
if resp.StatusCode != http.StatusOK {
return fmt.Errorf("response status %d (%s) with content-type %q", resp.StatusCode, resp.Status, mt)
}
return fmt.Errorf("unexpected content-type %q", mt)
}
buf, err := io.ReadAll(resp.Body)
if err != nil {
return err
}
var obj struct {
Data json.RawMessage `json:"data"`
Errors []struct {
Message string `json:"message"`
} `json:"errors"`
}
if err := json.Unmarshal(buf, &obj); err != nil {
if resp.StatusCode != http.StatusOK {
return fmt.Errorf("response status %d (%s) with invalid json", resp.StatusCode, resp.Status)
}
return fmt.Errorf("invalid json resp: %w", err)
}
if len(obj.Errors) != 0 {
return fmt.Errorf("got %d errors, including %q", len(obj.Errors), obj.Errors[0].Message)
}
if err := json.Unmarshal([]byte(obj.Data), out); err != nil {
return fmt.Errorf("invalid json data: %w", err)
}
return nil
}
func (c *Client) do(r *http.Request) (*http.Response, error) {
if c.Client == nil {
return http.DefaultClient.Do(r)
}
return c.Client.Do(r)
}
func (c *Client) req(ctx context.Context, ver bool, method, url string, body io.Reader) (*http.Request, error) {
req, err := http.NewRequestWithContext(ctx, method, url, body)
if err == nil {
if ver {
if c.UpdateMgr == nil {
return nil, ErrVersionRequired
}
ver, _, err := c.UpdateMgr.Update(false)
if err != nil {
return nil, fmt.Errorf("%w: failed to update version: %v", ErrVersionRequired, err)
}
if ver == "" {
return nil, ErrVersionRequired
}
req.Header.Set("User-Agent", "EADesktop/"+ver)
}
req.Header.Set("x-client-id", "EAX-JUNO-CLIENT")
}
return req, err
}
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