package slack
import (
"errors"
"net/url"
"strconv"
)
// ItemReaction is the reactions that have happened on an item.
type ItemReaction struct {
Name string `json:"name"`
Count int `json:"count"`
Users []string `json:"users"`
}
// ReactedItem is an item that was reacted to, and the details of the
// reactions.
type ReactedItem struct {
Item
Reactions []ItemReaction
}
// GetReactionsParameters is the inputs to get reactions to an item.
type GetReactionsParameters struct {
Full bool
}
// NewGetReactionsParameters initializes the inputs to get reactions to an item.
func NewGetReactionsParameters() GetReactionsParameters {
return GetReactionsParameters{
Full: false,
}
}
type getReactionsResponseFull struct {
Type string
M struct {
Reactions []ItemReaction
} `json:"message"`
F struct {
Reactions []ItemReaction
} `json:"file"`
FC struct {
Reactions []ItemReaction
} `json:"comment"`
SlackResponse
}
func (res getReactionsResponseFull) extractReactions() []ItemReaction {
switch res.Type {
case "message":
return res.M.Reactions
case "file":
return res.F.Reactions
case "file_comment":
return res.FC.Reactions
}
return []ItemReaction{}
}
const (
DEFAULT_REACTIONS_USER = ""
DEFAULT_REACTIONS_COUNT = 100
DEFAULT_REACTIONS_PAGE = 1
DEFAULT_REACTIONS_FULL = false
)
// ListReactionsParameters is the inputs to find all reactions by a user.
type ListReactionsParameters struct {
User string
Count int
Page int
Full bool
}
// NewListReactionsParameters initializes the inputs to find all reactions
// performed by a user.
func NewListReactionsParameters() ListReactionsParameters {
return ListReactionsParameters{
User: DEFAULT_REACTIONS_USER,
Count: DEFAULT_REACTIONS_COUNT,
Page: DEFAULT_REACTIONS_PAGE,
Full: DEFAULT_REACTIONS_FULL,
}
}
type listReactionsResponseFull struct {
Items []struct {
Type string
Channel string
M struct {
*Message
} `json:"message"`
F struct {
*File
Reactions []ItemReaction
} `json:"file"`
FC struct {
*Comment
Reactions []ItemReaction
} `json:"comment"`
}
Paging `json:"paging"`
SlackResponse
}
func (res listReactionsResponseFull) extractReactedItems() []ReactedItem {
items := make([]ReactedItem, len(res.Items))
for i, input := range res.Items {
item := ReactedItem{}
item.Type = input.Type
switch input.Type {
case "message":
item.Channel = input.Channel
item.Message = input.M.Message
item.Reactions = input.M.Reactions
case "file":
item.File = input.F.File
item.Reactions = input.F.Reactions
case "file_comment":
item.File = input.F.File
item.Comment = input.FC.Comment
item.Reactions = input.FC.Reactions
}
items[i] = item
}
return items
}
// AddReaction adds a reaction emoji to a message, file or file comment.
func (api *Client) AddReaction(name string, item ItemRef) error {
values := url.Values{
"token": {api.config.token},
}
if name != "" {
values.Set("name", name)
}
if item.Channel != "" {
values.Set("channel", string(item.Channel))
}
if item.Timestamp != "" {
values.Set("timestamp", string(item.Timestamp))
}
if item.File != "" {
values.Set("file", string(item.File))
}
if item.Comment != "" {
values.Set("file_comment", string(item.Comment))
}
response := &SlackResponse{}
if err := post("reactions.add", values, response, api.debug); err != nil {
return err
}
if !response.Ok {
return errors.New(response.Error)
}
return nil
}
// RemoveReaction removes a reaction emoji from a message, file or file comment.
func (api *Client) RemoveReaction(name string, item ItemRef) error {
values := url.Values{
"token": {api.config.token},
}
if name != "" {
values.Set("name", name)
}
if item.Channel != "" {
values.Set("channel", string(item.Channel))
}
if item.Timestamp != "" {
values.Set("timestamp", string(item.Timestamp))
}
if item.File != "" {
values.Set("file", string(item.File))
}
if item.Comment != "" {
values.Set("file_comment", string(item.Comment))
}
response := &SlackResponse{}
if err := post("reactions.remove", values, response, api.debug); err != nil {
return err
}
if !response.Ok {
return errors.New(response.Error)
}
return nil
}
// GetReactions returns details about the reactions on an item.
func (api *Client) GetReactions(item ItemRef, params GetReactionsParameters) ([]ItemReaction, error) {
values := url.Values{
"token": {api.config.token},
}
if item.Channel != "" {
values.Set("channel", string(item.Channel))
}
if item.Timestamp != "" {
values.Set("timestamp", string(item.Timestamp))
}
if item.File != "" {
values.Set("file", string(item.File))
}
if item.Comment != "" {
values.Set("file_comment", string(item.Comment))
}
if params.Full != DEFAULT_REACTIONS_FULL {
values.Set("full", strconv.FormatBool(params.Full))
}
response := &getReactionsResponseFull{}
if err := post("reactions.get", values, response, api.debug); err != nil {
return nil, err
}
if !response.Ok {
return nil, errors.New(response.Error)
}
return response.extractReactions(), nil
}
// ListReactions returns information about the items a user reacted to.
func (api *Client) ListReactions(params ListReactionsParameters) ([]ReactedItem, *Paging, error) {
values := url.Values{
"token": {api.config.token},
}
if params.User != DEFAULT_REACTIONS_USER {
values.Add("user", params.User)
}
if params.Count != DEFAULT_REACTIONS_COUNT {
values.Add("count", strconv.Itoa(params.Count))
}
if params.Page != DEFAULT_REACTIONS_PAGE {
values.Add("page", strconv.Itoa(params.Page))
}
if params.Full != DEFAULT_REACTIONS_FULL {
values.Add("full", strconv.FormatBool(params.Full))
}
response := &listReactionsResponseFull{}
err := post("reactions.list", values, response, api.debug)
if err != nil {
return nil, nil, err
}
if !response.Ok {
return nil, nil, errors.New(response.Error)
}
return response.extractReactedItems(), &response.Paging, nil
}