From c54167dc400da7659b3c7c2b2fa85f02b93e8c42 Mon Sep 17 00:00:00 2001
From: Aleksandr Zelenin <aleksandr@zelenin.me>
Date: Fri, 24 Mar 2023 05:29:41 +0300
Subject: [PATCH] add example

---
 README.md          |  4 +++
 example/Dockerfile | 85 ++++++++++++++++++++++++++++++++++++++++++++++
 example/demo.go    | 83 ++++++++++++++++++++++++++++++++++++++++++++
 example/go.mod     |  5 +++
 example/go.sum     |  2 ++
 5 files changed, 179 insertions(+)
 create mode 100644 example/Dockerfile
 create mode 100644 example/demo.go
 create mode 100644 example/go.mod
 create mode 100644 example/go.sum

diff --git a/README.md b/README.md
index 7941c6d..dcec17e 100644
--- a/README.md
+++ b/README.md
@@ -135,6 +135,10 @@ tdlibClient, err := client.NewClient(authorizer, proxy)
 
 ```
 
+## Example
+
+[Example application](https://github.com/zelenin/go-tdlib/tree/master/example)
+
 ## Notes
 
 * WIP. Library API can be changed in the future
diff --git a/example/Dockerfile b/example/Dockerfile
new file mode 100644
index 0000000..4fd7154
--- /dev/null
+++ b/example/Dockerfile
@@ -0,0 +1,85 @@
+FROM alpine:3.17 as tdlib-builder
+
+ENV LANG en_US.UTF-8
+ENV TZ UTC
+
+ARG TD_TAG
+
+RUN apk update && \
+    apk upgrade && \
+    apk add --update \
+        build-base \
+        ca-certificates \
+        ccache \
+        cmake \
+        git \
+        gperf \
+        linux-headers \
+        openssl-dev \
+        php \
+        php-ctype \
+        readline-dev \
+        zlib-dev && \
+    git clone -b "${TD_TAG}" "https://github.com/tdlib/td.git" /src && \
+    mkdir /src/build && \
+    cd /src/build && \
+    cmake \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_INSTALL_PREFIX:PATH=/usr/local \
+        .. && \
+    cmake --build . --target prepare_cross_compiling && \
+    cd .. && \
+    php SplitSource.php && \
+    cd build && \
+    cmake --build . --target install && \
+    ls -lah /usr/local
+
+
+FROM golang:1.20.2-alpine3.17 as go-builder
+
+ENV LANG en_US.UTF-8
+ENV TZ UTC
+
+RUN set -eux && \
+    apk update && \
+    apk upgrade && \
+    apk add \
+        bash \
+        build-base \
+        ca-certificates \
+        curl \
+        git \
+        linux-headers \
+        openssl-dev \
+        zlib-dev
+
+WORKDIR /src
+
+COPY --from=tdlib-builder /usr/local/include/td /usr/local/include/td/
+COPY --from=tdlib-builder /usr/local/lib/libtd* /usr/local/lib/
+COPY . /src
+
+RUN go build \
+    -a \
+    -trimpath \
+    -ldflags "-s -w" \
+    -o app \
+    "./demo.go" && \
+    ls -lah
+
+
+FROM alpine:3.17
+
+ENV LANG en_US.UTF-8
+ENV TZ UTC
+
+RUN apk upgrade --no-cache && \
+    apk add --no-cache \
+            ca-certificates \
+            libstdc++
+
+WORKDIR /app
+
+COPY --from=go-builder /src/app .
+
+CMD ["./app"]
diff --git a/example/demo.go b/example/demo.go
new file mode 100644
index 0000000..472fbeb
--- /dev/null
+++ b/example/demo.go
@@ -0,0 +1,83 @@
+package main
+
+import (
+	"log"
+	"os"
+	"os/signal"
+	"path/filepath"
+	"strconv"
+	"syscall"
+
+	"github.com/zelenin/go-tdlib/client"
+)
+
+func main() {
+	authorizer := client.ClientAuthorizer()
+	go client.CliInteractor(authorizer)
+
+	var (
+		apiIdRaw = os.Getenv("API_ID")
+		apiHash  = os.Getenv("API_HASH")
+	)
+
+	apiId64, err := strconv.ParseInt(apiIdRaw, 10, 32)
+	if err != nil {
+		log.Fatalf("strconv.Atoi error: %s", err)
+	}
+
+	apiId := int32(apiId64)
+
+	authorizer.TdlibParameters <- &client.TdlibParameters{
+		UseTestDc:              false,
+		DatabaseDirectory:      filepath.Join(".tdlib", "database"),
+		FilesDirectory:         filepath.Join(".tdlib", "files"),
+		UseFileDatabase:        true,
+		UseChatInfoDatabase:    true,
+		UseMessageDatabase:     true,
+		UseSecretChats:         false,
+		ApiId:                  apiId,
+		ApiHash:                apiHash,
+		SystemLanguageCode:     "en",
+		DeviceModel:            "Server",
+		SystemVersion:          "1.0.0",
+		ApplicationVersion:     "1.0.0",
+		EnableStorageOptimizer: true,
+		IgnoreFileNames:        false,
+	}
+
+	_, err = client.SetLogVerbosityLevel(&client.SetLogVerbosityLevelRequest{
+		NewVerbosityLevel: 1,
+	})
+	if err != nil {
+		log.Fatalf("SetLogVerbosityLevel error: %s", err)
+	}
+
+	tdlibClient, err := client.NewClient(authorizer)
+	if err != nil {
+		log.Fatalf("NewClient error: %s", err)
+	}
+
+	optionValue, err := tdlibClient.GetOption(&client.GetOptionRequest{
+		Name: "version",
+	})
+	if err != nil {
+		log.Fatalf("GetOption error: %s", err)
+	}
+
+	log.Printf("TDLib version: %s", optionValue.(*client.OptionValueString).Value)
+
+	me, err := tdlibClient.GetMe()
+	if err != nil {
+		log.Fatalf("GetMe error: %s", err)
+	}
+
+	log.Printf("Me: %s %s [%s]", me.FirstName, me.LastName, me.Username)
+
+	ch := make(chan os.Signal, 2)
+	signal.Notify(ch, os.Interrupt, syscall.SIGTERM)
+	go func() {
+		<-ch
+		tdlibClient.Stop()
+		os.Exit(1)
+	}()
+}
diff --git a/example/go.mod b/example/go.mod
new file mode 100644
index 0000000..6e21b65
--- /dev/null
+++ b/example/go.mod
@@ -0,0 +1,5 @@
+module go-tdlib-demo
+
+go 1.20
+
+require github.com/zelenin/go-tdlib v0.6.0 // indirect
diff --git a/example/go.sum b/example/go.sum
new file mode 100644
index 0000000..b00f97d
--- /dev/null
+++ b/example/go.sum
@@ -0,0 +1,2 @@
+github.com/zelenin/go-tdlib v0.6.0 h1:dmdaPYcluNPiVuagM7D2FPT/nLYftTmqeKndz30vSDM=
+github.com/zelenin/go-tdlib v0.6.0/go.mod h1:Xs8fXbk5n7VaPyrSs9DP7QYoBScWYsjX+lUcWmx1DIU=