Broadcast messages are now stored in database

lib/dbmapping/broadcast.go

@@ -0,0 +1,19 @@
+// i2_bot – Instinct PokememBro Bot
+// Copyright (c) 2017 Vladimir "fat0troll" Hodakov
+
+package dbmapping
+
+import (
+	// stdlib
+	"time"
+)
+
+// Broadcast is a struct, which represents `broadcast` table item in databse.
+type Broadcast struct {
+	ID            int       `db:"id"`
+	Text          string    `db:"text"`
+	BroadcastType string    `db:"broadcast_type"`
+	Status        string    `db:"status"`
+	AuthorID      int       `db:"author_id"`
+	CreatedAt     time.Time `db:"created_at"`
+}

lib/getters/broadcasts.go

@@ -0,0 +1,69 @@
+// i2_bot – Instinct PokememBro Bot
+// Copyright (c) 2017 Vladimir "fat0troll" Hodakov
+
+package getters
+
+import (
+	// stdlib
+	"log"
+	"time"
+	// local
+	"../dbmapping"
+)
+
+// CreateBroadcastMessage creates broadcast message item in database
+func (g *Getters) CreateBroadcastMessage(playerRaw *dbmapping.Player, messageBody string, broadcastType string) (dbmapping.Broadcast, bool) {
+	messageRaw := dbmapping.Broadcast{}
+	messageRaw.Text = messageBody
+	messageRaw.Status = "new"
+	messageRaw.BroadcastType = broadcastType
+	messageRaw.AuthorID = playerRaw.ID
+	messageRaw.CreatedAt = time.Now().UTC()
+	_, err := c.Db.NamedExec("INSERT INTO broadcasts VALUES(NULL, :text, :broadcast_type, :status, :author_id, :created_at)", &messageRaw)
+	if err != nil {
+		log.Printf(err.Error())
+		return messageRaw, false
+	}
+	err2 := c.Db.Get(&messageRaw, c.Db.Rebind("SELECT * FROM broadcasts WHERE author_id=? AND text=?"), messageRaw.AuthorID, messageRaw.Text)
+	if err2 != nil {
+		log.Println(err2)
+		return messageRaw, false
+	}
+
+	return messageRaw, true
+}
+
+// GetBroadcastMessageByID returns dbmapping.Broadcast instance with given ID.
+func (g *Getters) GetBroadcastMessageByID(messageID int) (dbmapping.Broadcast, bool) {
+	messageRaw := dbmapping.Broadcast{}
+	err := c.Db.Get(&messageRaw, c.Db.Rebind("SELECT * FROM broadcasts WHERE id=?"), messageID)
+	if err != nil {
+		log.Println(err)
+		return messageRaw, false
+	}
+
+	return messageRaw, true
+}
+
+// UpdateBroadcastMessageStatus updates broadcast message status
+func (g *Getters) UpdateBroadcastMessageStatus(messageID int, messageStatus string) (dbmapping.Broadcast, bool) {
+	messageRaw := dbmapping.Broadcast{}
+	err := c.Db.Get(&messageRaw, c.Db.Rebind("SELECT * FROM broadcasts WHERE id=?"), messageID)
+	if err != nil {
+		log.Println(err)
+		return messageRaw, false
+	}
+	messageRaw.Status = messageStatus
+	_, err = c.Db.NamedExec("UPDATE broadcasts SET status=:status WHERE id=:id", &messageRaw)
+	if err != nil {
+		log.Printf(err.Error())
+		return messageRaw, false
+	}
+	err = c.Db.Get(&messageRaw, c.Db.Rebind("SELECT * FROM broadcasts WHERE author_id=? AND text=?"), messageRaw.AuthorID, messageRaw.Text)
+	if err != nil {
+		log.Println(err)
+		return messageRaw, false
+	}
+
+	return messageRaw, true
+}

lib/getters/gettersinterface/gettersinterface.go

@@ -13,6 +13,9 @@ import (
 // GettersInterface implements Getters for importing via appcontext.
 type GettersInterface interface {
 	Init()
+	CreateBroadcastMessage(playerRaw *dbmapping.Player, messageBody string, broadcastType string) (dbmapping.Broadcast, bool)
+	GetBroadcastMessageByID(messageID int) (dbmapping.Broadcast, bool)
+	UpdateBroadcastMessageStatus(messageID int, messageStatus string) (dbmapping.Broadcast, bool)
 	GetOrCreateChat(update *tgbotapi.Update) (dbmapping.Chat, bool)
 	GetChatByID(chatID int) (dbmapping.Chat, bool)
 	GetAllPrivateChats() ([]dbmapping.Chat, bool)

lib/migrations/19_create_broadcasts.go

@@ -0,0 +1,37 @@
+// i2_bot – Instinct PokememBro Bot
+// Copyright (c) 2017 Vladimir "fat0troll" Hodakov
+
+package migrations
+
+import (
+	// stdlib
+	"database/sql"
+)
+
+func CreateBroadcastsUp(tx *sql.Tx) error {
+	request := "CREATE TABLE `broadcasts` ("
+	request += "`id` int(11) NOT NULL AUTO_INCREMENT COMMENT 'ID сообщения',"
+	request += "`text` text NOT NULL COMMENT 'Тело сообщения',"
+	request += "`broadcast_type` varchar(191) NOT NULL COMMENT 'Тип широковещательного сообщения',"
+	request += "`status` varchar(191) NOT NULL DEFAULT 'new' COMMENT 'Статус сообщения',"
+	request += "`author_id` int(11) NOT NULL COMMENT 'ID автора',"
+	request += "`created_at` datetime NOT NULL COMMENT 'Добавлено в базу',"
+	request += "PRIMARY KEY (`id`),"
+	request += "UNIQUE KEY `id` (`id`),"
+	request += "KEY `broadcasts_created_at` (`created_at`)"
+	request += ") ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COMMENT='Широковещательные сообщения';"
+	_, err := tx.Exec(request)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func CreateBroadcastsDown(tx *sql.Tx) error {
+	_, err := tx.Exec("DROP TABLE `broadcasts`;")
+	if err != nil {
+		return err
+	}
+	return nil
+}

lib/migrations/migrations.go

@@ -33,6 +33,7 @@ func (m *Migrations) Init() {
 	goose.AddNamedMigration("16_change_chat_type_column.go", ChangeChatTypeColumnUp, ChangeChatTypeColumnDown)
 	goose.AddNamedMigration("17_change_profile_pokememes_columns.go", ChangeProfilePokememesColumnsUp, ChangeProfilePokememesColumnsDown)
 	goose.AddNamedMigration("18_add_pokememes_wealth.go", AddPokememesWealthUp, AddPokememesWealthDown)
+	goose.AddNamedMigration("19_create_broadcasts.go", CreateBroadcastsUp, CreateBroadcastsDown)
 }
 
 func (m *Migrations) Migrate() error {

lib/router/router.go

@@ -50,6 +50,7 @@ func (r *Router) RouteRequest(update tgbotapi.Update) string {
 
 	// Owner commands
 	var sendAllMsg = regexp.MustCompile("/send_all(.+)")
+	var sendConfirmMsg = regexp.MustCompile(`/send_confirm(\s)(\d+)`)
 
 	// Forwards
 	var pokememeMsg = regexp.MustCompile("(Уровень)(.+)(Опыт)(.+)\n(Элементы:)(.+)\n(.+)(💙MP)")
@@ -131,7 +132,13 @@ func (r *Router) RouteRequest(update tgbotapi.Update) string {
 		// Admin commands
 		case sendAllMsg.MatchString(text):
 			if c.Getters.PlayerBetterThan(&playerRaw, "admin") {
-				c.Talkers.AdminBroadcastMessage(update)
+				c.Talkers.AdminBroadcastMessageCompose(update, &playerRaw)
+			} else {
+				c.Talkers.AnyMessageUnauthorized(update)
+			}
+		case sendConfirmMsg.MatchString(text):
+			if c.Getters.PlayerBetterThan(&playerRaw, "admin") {
+				c.Talkers.AdminBroadcastMessageSend(update, &playerRaw)
 			} else {
 				c.Talkers.AnyMessageUnauthorized(update)
 			}

lib/talkers/broadcast.go

@@ -3,16 +3,68 @@
 
 package talkers
 
-import ( // stdlib
-	// 3rd party
+import (
+	// stdlib
+	"strconv"
 	"strings"
-
+	// 3rd party
 	"github.com/go-telegram-bot-api/telegram-bot-api"
+	// local
+	"../dbmapping"
 )
 
-// AdminBroadcastMessage sends message to all private chats with bot
-func (t *Talkers) AdminBroadcastMessage(update tgbotapi.Update) string {
-	broadcastingMessageBody := strings.Replace(update.Message.Text, "/send_all", "", 1)
+// AdminBroadcastMessageCompose saves message for future broadcast
+func (t *Talkers) AdminBroadcastMessageCompose(update tgbotapi.Update, playerRaw *dbmapping.Player) string {
+	broadcastingMessageBody := strings.Replace(update.Message.Text, "/send_all ", "", 1)
+
+	messageRaw, ok := c.Getters.CreateBroadcastMessage(playerRaw, broadcastingMessageBody, "all")
+	if !ok {
+		return "fail"
+	}
+
+	message := "Сообщение сохранено в базу.\n"
+	message += "Выглядеть оно будет так:"
+
+	msg := tgbotapi.NewMessage(update.Message.Chat.ID, message)
+	msg.ParseMode = "Markdown"
+
+	c.Bot.Send(msg)
+
+	broadcastingMessage := "*Привет, %username%!*\n\n"
+	broadcastingMessage += "*Важное сообщение от администратора " + update.Message.From.FirstName + " " + update.Message.From.LastName + "* (@" + update.Message.From.UserName + ")\n\n"
+	broadcastingMessage += messageRaw.Text
+
+	msg = tgbotapi.NewMessage(update.Message.Chat.ID, broadcastingMessage)
+	msg.ParseMode = "Markdown"
+
+	c.Bot.Send(msg)
+
+	message = "Чтобы отправить сообщение всем, отправь команду /send\\_confirm " + strconv.Itoa(messageRaw.ID)
+
+	msg = tgbotapi.NewMessage(update.Message.Chat.ID, message)
+	msg.ParseMode = "Markdown"
+
+	c.Bot.Send(msg)
+
+	return "ok"
+}
+
+// AdminBroadcastMessageSend sends saved message to all private chats
+func (t *Talkers) AdminBroadcastMessageSend(update tgbotapi.Update, playerRaw *dbmapping.Player) string {
+	messageNum := strings.Replace(update.Message.Text, "/send_confirm ", "", 1)
+	messageNumInt, _ := strconv.Atoi(messageNum)
+	messageRaw, ok := c.Getters.GetBroadcastMessageByID(messageNumInt)
+	if !ok {
+		return "fail"
+	}
+	if messageRaw.AuthorID != playerRaw.ID {
+		return "fail"
+	}
+	if messageRaw.Status != "new" {
+		return "fail"
+	}
+
+	broadcastingMessageBody := messageRaw.Text
 
 	privateChats, ok := c.Getters.GetAllPrivateChats()
 	if !ok {
@@ -30,6 +82,11 @@ func (t *Talkers) AdminBroadcastMessage(update tgbotapi.Update) string {
 		c.Bot.Send(msg)
 	}
 
+	messageRaw, ok = c.Getters.UpdateBroadcastMessageStatus(messageRaw.ID, "sent")
+	if !ok {
+		return "fail"
+	}
+
 	message := "Сообщение всем отправлено. Надеюсь, пользователи бота за него тебя не убьют.\n"
 
 	msg := tgbotapi.NewMessage(update.Message.Chat.ID, message)

lib/talkers/talkersinterface/talkersinterface.go

@@ -30,7 +30,8 @@ type TalkersInterface interface {
 	AnyMessageUnauthorized(update tgbotapi.Update)
 	GetterError(update tgbotapi.Update)
 
-	AdminBroadcastMessage(update tgbotapi.Update) string
+	AdminBroadcastMessageCompose(update tgbotapi.Update, playerRaw *dbmapping.Player) string
+	AdminBroadcastMessageSend(update tgbotapi.Update, playerRaw *dbmapping.Player) string	
 
 	DurakMessage(update tgbotapi.Update)
 	MatMessage(update tgbotapi.Update)