f814c51b53
- Create a live thread - Get a live thread's contributors - Accept an invite to contribute to a live thread - Leave a live thread Signed-off-by: Vartan Benohanian <vartanbeno@gmail.com>
223 lines
6.0 KiB
Go
223 lines
6.0 KiB
Go
package reddit
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"net/http"
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"net/url"
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"github.com/google/go-querystring/query"
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)
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// LiveThreadService handles communication with the live thread
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// related methods of the Reddit API.
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//
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// Reddit API docs: https://www.reddit.com/dev/api/#section_live
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type LiveThreadService struct {
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client *Client
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}
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// LiveThread is a thread on Reddit that provides real-time updates.
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type LiveThread struct {
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ID string `json:"id,omitempty"`
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FullID string `json:"name,omitempty"`
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Created *Timestamp `json:"created_utc,omitempty"`
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Title string `json:"title,omitempty"`
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Description string `json:"description,omitempty"`
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Resources string `json:"resources,omitempty"`
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State string `json:"state,omitempty"`
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ViewerCount int `json:"viewer_count"`
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ViewerCountFuzzed bool `json:"viewer_count_fuzzed"`
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// Empty when a list thread has ended.
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WebSocketURL string `json:"websocket_url,omitempty"`
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Announcement bool `json:"is_announcement"`
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NSFW bool `json:"nsfw"`
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}
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// LiveThreadCreateRequest represents a request to create a live thread.
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type LiveThreadCreateRequest struct {
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// No longer than 120 characters.
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Title string `url:"title"`
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Description string `url:"description,omitempty"`
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Resources string `url:"resources,omitempty"`
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NSFW bool `url:"nsfw,omitempty"`
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}
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// LiveThreadContributor is a user that can contribute to a live thread.
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type LiveThreadContributor struct {
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ID string `json:"id,omitempty"`
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Name string `json:"name,omitempty"`
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Permissions []string `json:"permissions,omitempty"`
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}
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// LiveThreadContributors is a list of users that can contribute to a live thread.
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type LiveThreadContributors struct {
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Current []*LiveThreadContributor `json:"current_contributors"`
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// This is only filled if you are a contributor in the live thread with the "manage" permission.
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Invited []*LiveThreadContributor `json:"invited_contributors,omitempty"`
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}
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// UnmarshalJSON implements the json.Unmarshaler interface.
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func (c *LiveThreadContributors) UnmarshalJSON(b []byte) error {
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if len(b) == 0 {
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return errors.New("no bytes to unmarshal")
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}
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// neat trick taken from:
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// https://www.calhoun.io/how-to-parse-json-that-varies-between-an-array-or-a-single-item-with-go
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switch b[0] {
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case '{':
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return c.unmarshalSingle(b)
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case '[':
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return c.unmarshalMany(b)
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}
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// This shouldn't really happen as the standard library seems to strip
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// whitespace from the bytes being passed in, but just in case let's guess at
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// multiple tags and fall back to a single one if that doesn't work.
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err := c.unmarshalSingle(b)
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if err != nil {
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return c.unmarshalMany(b)
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}
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return nil
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}
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func (c *LiveThreadContributors) unmarshalSingle(b []byte) error {
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root := new(struct {
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Data struct {
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Children []*LiveThreadContributor `json:"children"`
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} `json:"data"`
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})
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err := json.Unmarshal(b, &root)
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if err != nil {
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return err
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}
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c.Current = root.Data.Children
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return nil
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}
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func (c *LiveThreadContributors) unmarshalMany(b []byte) error {
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var root [2]struct {
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Data struct {
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Children []*LiveThreadContributor `json:"children"`
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} `json:"data"`
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}
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err := json.Unmarshal(b, &root)
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if err != nil {
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return err
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}
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c.Current = root[0].Data.Children
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c.Invited = root[1].Data.Children
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return nil
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}
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// Get information about a live thread.
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func (s *LiveThreadService) Get(ctx context.Context, id string) (*LiveThread, *Response, error) {
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path := fmt.Sprintf("live/%s/about", id)
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req, err := s.client.NewRequest(http.MethodGet, path, nil)
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if err != nil {
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return nil, nil, err
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}
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root := new(thing)
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resp, err := s.client.Do(ctx, req, root)
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if err != nil {
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return nil, resp, err
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}
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t, _ := root.LiveThread()
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return t, resp, nil
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}
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// Create a live thread and get its id.
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func (s *LiveThreadService) Create(ctx context.Context, request *LiveThreadCreateRequest) (string, *Response, error) {
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if request == nil {
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return "", nil, errors.New("*LiveThreadCreateRequest: cannot be nil")
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}
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form, err := query.Values(request)
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if err != nil {
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return "", nil, err
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}
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form.Set("api_type", "json")
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path := "api/live/create"
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req, err := s.client.NewRequest(http.MethodPost, path, form)
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if err != nil {
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return "", nil, err
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}
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root := new(struct {
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JSON struct {
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Data struct {
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ID string `json:"id"`
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} `json:"data"`
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} `json:"json"`
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})
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resp, err := s.client.Do(ctx, req, root)
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if err != nil {
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return "", resp, err
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}
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return root.JSON.Data.ID, resp, nil
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}
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// Contributors gets a list of users that are contributors to the live thread.
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// If you are a contributor and you have the "manage" permission (to manage contributors), you
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// also get a list of invited contributors that haven't yet accepted/refused their invitation.
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func (s *LiveThreadService) Contributors(ctx context.Context, id string) (*LiveThreadContributors, *Response, error) {
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path := fmt.Sprintf("live/%s/contributors", id)
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req, err := s.client.NewRequest(http.MethodGet, path, nil)
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if err != nil {
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return nil, nil, err
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}
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root := new(LiveThreadContributors)
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resp, err := s.client.Do(ctx, req, &root)
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if err != nil {
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return nil, resp, err
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}
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return root, resp, nil
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}
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// Accept a pending invite to contribute to the live thread.
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func (s *LiveThreadService) Accept(ctx context.Context, id string) (*Response, error) {
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form := url.Values{}
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form.Set("api_type", "json")
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path := fmt.Sprintf("api/live/%s/accept_contributor_invite", id)
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req, err := s.client.NewRequest(http.MethodPost, path, form)
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if err != nil {
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return nil, err
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}
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return s.client.Do(ctx, req, nil)
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}
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// Leave the live thread by abdicating your status as contributor.
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// todo: test as the author who leaves the thread.
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func (s *LiveThreadService) Leave(ctx context.Context, id string) (*Response, error) {
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form := url.Values{}
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form.Set("api_type", "json")
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path := fmt.Sprintf("api/live/%s/leave_contributor", id)
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req, err := s.client.NewRequest(http.MethodPost, path, form)
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if err != nil {
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return nil, err
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}
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return s.client.Do(ctx, req, nil)
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}
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