Add EmojiService

Signed-off-by: Vartan Benohanian <vartanbeno@gmail.com>

emoji.go

@@ -0,0 +1,84 @@
+package reddit
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strings"
+)
+
+// EmojiService handles communication with the emoji
+// related methods of the Reddit API.
+//
+// Reddit API docs: https://www.reddit.com/dev/api/#section_collections
+type EmojiService struct {
+	client *Client
+}
+
+// Emoji is a graphic element you can include in a post flair or user flair.
+type Emoji struct {
+	Name             string `json:"name,omitempty"`
+	URL              string `json:"url,omitempty"`
+	UserFlairAllowed bool   `json:"user_flair_allowed,omitempty"`
+	PostFlairAllowed bool   `json:"post_flair_allowed,omitempty"`
+	ModFlairOnly     bool   `json:"mod_flair_only,omitempty"`
+	// ID of the user who created this emoji.
+	CreatedBy string `json:"created_by,omitempty"`
+}
+
+// UnmarshalJSON implements the json.Unmarshaler interface.
+// func (e *Emoji) UnmarshalJSON(data []byte) (err error) {
+// 	fmt.Println("===", string(data))
+// 	return nil
+// }
+
+type emojis []*Emoji
+
+func (e *emojis) UnmarshalJSON(data []byte) (err error) {
+	emojiMap := make(map[string]json.RawMessage)
+	err = json.Unmarshal(data, &emojiMap)
+	if err != nil {
+		return
+	}
+
+	for emojiName, emojiValue := range emojiMap {
+		emoji := new(Emoji)
+		err = json.Unmarshal(emojiValue, emoji)
+		if err != nil {
+			return
+		}
+		emoji.Name = emojiName
+		*e = append(*e, emoji)
+	}
+
+	return
+}
+
+// Get returns the default set of Reddit emojis, and those of the subreddit, respectively.
+func (s *EmojiService) Get(ctx context.Context, subreddit string) ([]*Emoji, []*Emoji, *Response, error) {
+	path := fmt.Sprintf("api/v1/%s/emojis/all", subreddit)
+
+	req, err := s.client.NewRequest(http.MethodGet, path, nil)
+	if err != nil {
+		return nil, nil, nil, err
+	}
+
+	root := make(map[string]emojis)
+	resp, err := s.client.Do(ctx, req, &root)
+	if err != nil {
+		return nil, nil, resp, err
+	}
+
+	defaultEmojis := root["snoomojis"]
+	var subredditEmojis []*Emoji
+
+	for k := range root {
+		if strings.HasPrefix(k, kindSubreddit) {
+			subredditEmojis = root[k]
+			break
+		}
+	}
+
+	return defaultEmojis, subredditEmojis, resp, nil
+}

emoji_test.go

@@ -0,0 +1,57 @@
+package reddit
+
+import (
+	"fmt"
+	"net/http"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+var expectedDefaultEmojis = []*Emoji{
+	{
+		Name:             "cake",
+		URL:              "https://emoji.redditmedia.com/46kel8lf1guz_t5_3nqvj/cake",
+		UserFlairAllowed: true,
+		PostFlairAllowed: true,
+		ModFlairOnly:     false,
+		CreatedBy:        "t2_6zfp6ii",
+	},
+	{
+		Name:             "cat_blep",
+		URL:              "https://emoji.redditmedia.com/p9sxc1zh1guz_t5_3nqvj/cat_blep",
+		UserFlairAllowed: true,
+		PostFlairAllowed: true,
+		ModFlairOnly:     false,
+		CreatedBy:        "t2_6zfp6ii",
+	},
+}
+
+var expectedSubredditEmojis = []*Emoji{
+	{
+		Name:             "TestEmoji",
+		URL:              "https://emoji.redditmedia.com/fxe5a674hpf51_t5_2uquw1/TestEmoji",
+		UserFlairAllowed: true,
+		PostFlairAllowed: true,
+		ModFlairOnly:     false,
+		CreatedBy:        "t2_164ab8",
+	},
+}
+
+func TestEmojiService_Get(t *testing.T) {
+	setup()
+	defer teardown()
+
+	blob, err := readFileContents("./testdata/emoji/emojis.json")
+	assert.NoError(t, err)
+
+	mux.HandleFunc("/api/v1/test/emojis/all", func(w http.ResponseWriter, r *http.Request) {
+		assert.Equal(t, http.MethodGet, r.Method)
+		fmt.Fprint(w, blob)
+	})
+
+	defaultEmojis, subredditEmojis, _, err := client.Emoji.Get(ctx, "test")
+	assert.NoError(t, err)
+	assert.Equal(t, expectedDefaultEmojis, defaultEmojis)
+	assert.Equal(t, expectedSubredditEmojis, subredditEmojis)
+}

reddit.go

@@ -94,6 +94,7 @@ type Client struct {
 	Account    *AccountService
 	Collection *CollectionService
 	Comment    *CommentService
+	Emoji      *EmojiService
 	Flair      *FlairService
 	Listings   *ListingsService
 	Moderation *ModerationService
@@ -141,6 +142,7 @@ func newClient(httpClient *http.Client) *Client {
 
 	c.Account = &AccountService{client: c}
 	c.Collection = &CollectionService{client: c}
+	c.Emoji = &EmojiService{client: c}
 	c.Flair = &FlairService{client: c}
 	c.Listings = &ListingsService{client: c}
 	c.Moderation = &ModerationService{client: c}

reddit_test.go

@@ -69,6 +69,7 @@ func testClientServices(t *testing.T, c *Client) {
 		"Account",
 		"Collection",
 		"Comment",
+		"Emoji",
 		"Flair",
 		"Listings",
 		"Moderation",

testdata/emoji/emojis.json

@@ -0,0 +1,27 @@
+{
+  "snoomojis": {
+    "cake": {
+      "url": "https://emoji.redditmedia.com/46kel8lf1guz_t5_3nqvj/cake",
+      "user_flair_allowed": true,
+      "post_flair_allowed": true,
+      "mod_flair_only": false,
+      "created_by": "t2_6zfp6ii"
+    },
+    "cat_blep": {
+      "url": "https://emoji.redditmedia.com/p9sxc1zh1guz_t5_3nqvj/cat_blep",
+      "user_flair_allowed": true,
+      "post_flair_allowed": true,
+      "mod_flair_only": false,
+      "created_by": "t2_6zfp6ii"
+    }
+  },
+  "t5_2uquw1": {
+    "TestEmoji": {
+      "url": "https://emoji.redditmedia.com/fxe5a674hpf51_t5_2uquw1/TestEmoji",
+      "user_flair_allowed": true,
+      "post_flair_allowed": true,
+      "mod_flair_only": false,
+      "created_by": "t2_164ab8"
+    }
+  }
+}