133 lines
3.3 KiB
Go
133 lines
3.3 KiB
Go
package broadcasters
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import (
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"context"
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"strings"
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"time"
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"encore.dev/beta/errs"
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)
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type ChatLogEntry struct {
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ID int64 `json:"id"`
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Timestamp time.Time `json:"timestamp"`
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Room string `json:"room"`
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Type string `json:"type"`
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Data string `json:"data"`
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}
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type AddChatLogParams struct {
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Type string `json:"type"`
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Data string `json:"data"`
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}
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type ListChatLogParams struct {
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Limit int `json:"limit,omitempty" query:"limit"`
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Type string `json:"type,omitempty" query:"type"`
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}
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type ListChatLogResponse struct {
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Messages []*ChatLogEntry `json:"messages"`
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}
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// AddChatLog inserisce un nuovo evento o messaggio nella tabella chatlog.
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//
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//encore:api public method=POST path=/broadcasters/id/:id/chatlog
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func AddChatLog(ctx context.Context, id string, p *AddChatLogParams) (*ChatLogEntry, error) {
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if strings.TrimSpace(id) == "" {
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return nil, &errs.Error{Code: errs.InvalidArgument, Message: "id stanza obbligatorio"}
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}
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if p == nil || strings.TrimSpace(p.Data) == "" {
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return nil, &errs.Error{Code: errs.InvalidArgument, Message: "data obbligatorio"}
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}
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msgType := strings.ToUpper(strings.TrimSpace(p.Type))
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if msgType == "" {
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msgType = "MESSAGE"
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} else if msgType == "ALERT" {
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msgType = "ALLERT"
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}
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switch msgType {
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case "ACTION", "MESSAGE", "ALLERT", "CMD":
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default:
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msgType = "MESSAGE"
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}
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entry := &ChatLogEntry{
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Room: id,
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Type: msgType,
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Data: p.Data,
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}
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err := db.QueryRow(ctx, `
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INSERT INTO chatlog (room, type, data, timestamp)
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VALUES ($1, $2, $3, NOW())
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RETURNING id, timestamp
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`, entry.Room, entry.Type, entry.Data).Scan(&entry.ID, &entry.Timestamp)
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if err != nil {
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return nil, errs.WrapCode(err, errs.Internal, "impossibile salvare il messaggio di chat")
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}
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return entry, nil
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}
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// ListChatLog preleva gli ultimi messaggi per la stanza (default 30) e li ordina
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// in ordine cronologico crescente (dal più vecchio al più recente), pronti per l'append nella UI.
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//
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//encore:api public method=GET path=/broadcasters/id/:id/chatlog
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func ListChatLog(ctx context.Context, id string, p *ListChatLogParams) (*ListChatLogResponse, error) {
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if strings.TrimSpace(id) == "" {
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return nil, &errs.Error{Code: errs.InvalidArgument, Message: "id stanza obbligatorio"}
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}
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limit := 30
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filterType := ""
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if p != nil {
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if p.Limit > 0 {
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limit = p.Limit
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}
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if t := strings.TrimSpace(p.Type); t != "" {
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filterType = strings.ToUpper(t)
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}
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}
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if limit > 100 {
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limit = 100
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}
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query := `
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SELECT id, timestamp, room, type, data
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FROM (
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SELECT id, timestamp, room, type, data
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FROM chatlog
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WHERE room = $1 AND ($3 = '' OR type = $3)
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ORDER BY timestamp DESC, id DESC
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LIMIT $2
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) sub
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ORDER BY timestamp ASC, id ASC
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`
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rows, err := db.Query(ctx, query, id, limit, filterType)
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if err != nil {
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return nil, errs.WrapCode(err, errs.Internal, "impossibile recuperare i messaggi di chat")
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}
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defer rows.Close()
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var list []*ChatLogEntry
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for rows.Next() {
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var e ChatLogEntry
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if err := rows.Scan(&e.ID, &e.Timestamp, &e.Room, &e.Type, &e.Data); err != nil {
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return nil, errs.WrapCode(err, errs.Internal, "errore nella lettura dei messaggi")
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}
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list = append(list, &e)
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}
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if err := rows.Err(); err != nil {
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return nil, errs.WrapCode(err, errs.Internal, "errore iterazione messaggi")
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}
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if list == nil {
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list = []*ChatLogEntry{}
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}
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return &ListChatLogResponse{Messages: list}, nil
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}
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