send notifications and worker stuff

Procfile

@@ -1,4 +1,3 @@
 postgres: postgres -D tmp/postgresql
-faktory: faktory
 server: go run github.com/andremedeiros/apollo/cmd/apollo-api
 worker: go run github.com/andremedeiros/apollo/cmd/apollo-worker

cmd/apollo-api/main.go

@@ -8,12 +8,11 @@ import (
 	"net/http"
 	"os"
 
-	"github.com/andremedeiros/apollo/internal/data"
-	"github.com/andremedeiros/apollo/internal/reddit"
-
-	faktory "github.com/contribsys/faktory/client"
 	"github.com/joho/godotenv"
 	_ "github.com/lib/pq"
+
+	"github.com/andremedeiros/apollo/internal/data"
+	"github.com/andremedeiros/apollo/internal/reddit"
 )
 
 type config struct {
@@ -24,7 +23,6 @@ type application struct {
 	cfg    config
 	logger *log.Logger
 	db     *sql.DB
-	faktory *faktory.Client
 	models *data.Models
 	client *reddit.Client
 }
@@ -47,19 +45,12 @@ func main() {
 	}
 	defer db.Close()
 
-	faktory, err := faktory.Open()
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer faktory.Close()
-
 	rc := reddit.NewClient(os.Getenv("REDDIT_CLIENT_ID"), os.Getenv("REDDIT_CLIENT_SECRET"))
 
 	app := &application{
 		cfg,
 		logger,
 		db,
-		faktory,
 		data.NewModels(db),
 		rc,
 	}
@@ -72,10 +63,4 @@ func main() {
 	logger.Printf("starting server on %s", srv.Addr)
 	err = srv.ListenAndServe()
 	logger.Fatal(err)
-
-	/*
-		rc := reddit.NewClient("C7MjYkx1czyRDA", "I2AsVWbrf8h4vdQxVa5Pvf84vScF1w")
-		rac := rc.NewAuthenticatedClient("2532458-kGp6OeR-LMoQNrUXRL-7UNfyBbViRA", "2532458-UE7IvJK3-VuTdMJB0bgMv58fxKQhww")
-		rac.MessageInbox()
-	*/
 }

cmd/apollo-worker/main.go

@@ -4,9 +4,16 @@ import (
 	"database/sql"
 	"log"
 	"os"
+	"os/signal"
+	"runtime"
+	"syscall"
+	"time"
 
-	worker "github.com/contribsys/faktory_worker_go"
 	"github.com/joho/godotenv"
+	_ "github.com/lib/pq"
+	"github.com/sideshow/apns2"
+	"github.com/sideshow/apns2/payload"
+	"github.com/sideshow/apns2/token"
 
 	"github.com/andremedeiros/apollo/internal/data"
 	"github.com/andremedeiros/apollo/internal/reddit"
@@ -19,6 +26,95 @@ type application struct {
 	client *reddit.Client
 }
 
+var workers int = runtime.NumCPU() * 2
+
+func accountWorker(id int, rc *reddit.Client, db *sql.DB, logger *log.Logger, quit chan bool) {
+	authKey, err := token.AuthKeyFromFile("./tmp/authkey.p8")
+	token := &token.Token{
+		AuthKey: authKey,
+		KeyID:   "T88A7G9LZ8",
+		TeamID:  "XG3L8T56DK",
+	}
+
+	if err != nil {
+		log.Fatal("token error:", err)
+	}
+
+	client := apns2.NewTokenClient(token)
+
+	for {
+		select {
+		case <-quit:
+			return
+		default:
+			now := time.Now().UTC().Unix()
+
+			tx, err := db.Begin()
+
+			if err != nil {
+				log.Fatal(err)
+				continue
+			}
+
+			query := `
+				SELECT id, access_token, refresh_token, expires_at, last_message_id FROM accounts
+				WHERE last_checked_at <= $1 - 5
+				ORDER BY last_checked_at
+				LIMIT 1
+				FOR UPDATE SKIP LOCKED`
+			args := []interface{}{now}
+
+			account := &data.Account{}
+			err = tx.QueryRow(query, args...).Scan(&account.ID, &account.AccessToken, &account.RefreshToken, &account.ExpiresAt, &account.LastMessageID)
+
+			if account.ID == 0 {
+				time.Sleep(100 * time.Millisecond)
+				tx.Commit()
+				continue
+			}
+
+			logger.Printf("Worker #%d, account %d", id, account.ID)
+
+			_, err = tx.Exec(`UPDATE accounts SET last_checked_at = $1 WHERE id = $2`, now, account.ID)
+
+			rac := rc.NewAuthenticatedClient(account.RefreshToken, account.AccessToken)
+			if account.ExpiresAt < now {
+				tokens, _ := rac.RefreshTokens()
+				tx.Exec(`UPDATE accounts SET access_token = $1, refresh_token = $2, expires_at = $3 WHERE id = $4`,
+					tokens.AccessToken, tokens.RefreshToken, now+3500, account.ID)
+			}
+
+			msgs, err := rac.MessageInbox(account.LastMessageID)
+			if err != nil {
+				log.Fatal(err)
+			}
+
+			if len(msgs.MessageListing.Messages) == 0 {
+				tx.Commit()
+				continue
+			}
+
+			// Set latest message we alerted on
+			latestMsg := msgs.MessageListing.Messages[0]
+
+			_, err = tx.Exec(`UPDATE accounts SET last_message_id = $1 WHERE id = $2`, latestMsg.FullName(), account.ID)
+			if err != nil {
+				log.Fatal(err)
+			}
+
+			for _, msg := range msgs.MessageListing.Messages {
+				notification := &apns2.Notification{}
+				notification.DeviceToken = "9e1eb4c68d24a8f43eb92ed0a65f46aadbfbdbfe0a15ef4b5c34a9a4deb9ca49"
+				notification.Topic = "com.christianselig.Apollo"
+				notification.Payload = payload.NewPayload().AlertTitle(msg.Subject).AlertBody(msg.Body)
+				client.Push(notification)
+			}
+
+			tx.Commit()
+		}
+	}
+}
+
 func main() {
 	err := godotenv.Load()
 	if err != nil {
@@ -27,23 +123,31 @@ func main() {
 
 	logger := log.New(os.Stdout, "", log.Ldate|log.Ltime)
 
+	rc := reddit.NewClient(os.Getenv("REDDIT_CLIENT_ID"), os.Getenv("REDDIT_CLIENT_SECRET"))
+
 	db, err := sql.Open("postgres", os.Getenv("DATABASE_URL"))
 	if err != nil {
 		log.Fatal(err)
 	}
 	defer db.Close()
 
-	rc := reddit.NewClient(os.Getenv("REDDIT_CLIENT_ID"), os.Getenv("REDDIT_CLIENT_SECRET"))
+	db.SetMaxOpenConns(workers)
 
-	app := &application{
+	// This is a very conservative value -- seen as most of the work that is done in these jobs is
-		logger,
+	//
-		db,
+	runtime.GOMAXPROCS(workers)
-		data.NewModels(db),
+	quitCh := make(chan bool, workers)
-		rc,
+	for i := 0; i < workers; i++ {
+		go accountWorker(i, rc, db, logger, quitCh)
 	}
 
-	mgr := worker.NewManager()
+	sigs := make(chan os.Signal, 1)
-	mgr.ProcessStrictPriorityQueues("critical", "default", "bulk")
+	signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
-	mgr.Concurrency = 20
+
-	mgr.Run()
+	<-sigs
+
+	for i := 0; i < workers; i++ {
+		quitCh <- true
+	}
+	os.Exit(0)
 }

go.mod

@@ -6,8 +6,10 @@ require (
 	github.com/contribsys/faktory v1.5.1
 	github.com/contribsys/faktory_worker_go v1.4.2
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/dgrijalva/jwt-go v3.2.0+incompatible // indirect
 	github.com/joho/godotenv v1.3.0
 	github.com/julienschmidt/httprouter v1.3.0
 	github.com/lib/pq v1.10.1
+	github.com/sideshow/apns2 v0.20.0 // indirect
 	github.com/stretchr/testify v1.5.1 // indirect
 )

go.sum

@@ -1,4 +1,6 @@
+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/benbjohnson/ego v0.4.0 h1:dJJoyR+HVi0CAyg6Eo/j3bLozdK91p/5WkAZ7ul99Uc=
 github.com/benbjohnson/ego v0.4.0/go.mod h1:6Qzj43pKX58WdlHDZKZS4Q/XXYwz6toIqXqNjzt4mNA=
 github.com/contribsys/faktory v1.3.0-1/go.mod h1:qCp3bcPrIT7mb/aR5KendsK/Nyg7yE3JOg4sETojQN8=
 github.com/contribsys/faktory v1.5.1 h1:Ac22RjbR8USVEwRV7jvz0+ytp2NquL5j7HC0IRM1K34=
@@ -8,9 +10,14 @@ github.com/contribsys/faktory_worker_go v1.4.2/go.mod h1:v53dJh0lrk18B/3zFJjAWM6
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumCAMpl/TFQ4/5kLM=
+github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
+github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
+github.com/go-bindata/go-bindata v3.1.2+incompatible h1:5vjJMVhowQdPzjE1LdxyFF7YFTXg5IgGVW4gBr5IbvE=
 github.com/go-bindata/go-bindata v3.1.2+incompatible/go.mod h1:xK8Dsgwmeed+BBsSy2XTopBn/8uK2HWuGSnA11C3Joo=
+github.com/go-redis/redis v6.15.7+incompatible h1:3skhDh95XQMpnqeqNftPkQD9jL9e5e36z/1SUm6dy1U=
 github.com/go-redis/redis v6.15.7+incompatible/go.mod h1:NAIEuMOZ/fxfXJIrKDQDz8wamY7mA7PouImQ2Jvg6kA=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
@@ -18,45 +25,60 @@ github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:x
 github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
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 github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
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 github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
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+golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9 h1:SQFwaSi55rU7vdNs9Yr0Z324VNlrF+0wMqRXT4St8ck=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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@@ -66,24 +88,32 @@ golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210112080510-489259a85091 h1:DMyOG0U+gKfu8JZzg2UQe9MeaC1X+xQWlAKcRnjxjCw=
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 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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+golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e h1:4nW4NLDYnU28ojHaHO8OVxFHk/aQ33U01a9cjED+pzE=
 golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
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 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
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 google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
+google.golang.org/protobuf v1.23.0 h1:4MY060fB1DLGMB/7MBTLnwQUY6+F09GEiz6SsrNqyzM=
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
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+gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
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 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

internal/reddit/client.go

@@ -2,7 +2,6 @@ package reddit
 
 import (
 	"encoding/json"
-	"fmt"
 	"io/ioutil"
 	"net/http"
 	"strings"
@@ -51,7 +50,7 @@ func (rac *AuthenticatedClient) request(r *Request) ([]byte, error) {
 	return ioutil.ReadAll(resp.Body)
 }
 
-func (rac *AuthenticatedClient) refreshTokens() (string, string, error) {
+func (rac *AuthenticatedClient) RefreshTokens() (*RefreshTokenResponse, error) {
 	req := NewRequest(
 		WithMethod("POST"),
 		WithURL(tokenURL),
@@ -61,20 +60,33 @@ func (rac *AuthenticatedClient) refreshTokens() (string, string, error) {
 	)
 
 	body, err := rac.request(req)
-	fmt.Println(string(body))
+
-	return "", "", err
+	if err != nil {
+		return nil, err
+	}
+
+	rtr := &RefreshTokenResponse{}
+	json.Unmarshal([]byte(body), rtr)
+	return rtr, nil
 }
 
-func (rac *AuthenticatedClient) MessageInbox() error {
+func (rac *AuthenticatedClient) MessageInbox(from string) (*MessageListingResponse, error) {
 	req := NewRequest(
 		WithMethod("GET"),
 		WithToken(rac.accessToken),
 		WithURL("https://oauth.reddit.com/message/inbox.json"),
+		WithQuery("before", from),
 	)
 
-	body, _ := rac.request(req)
+	body, err := rac.request(req)
-	fmt.Println(string(body))
+
-	return nil
+	if err != nil {
+		return nil, err
+	}
+
+	mlr := &MessageListingResponse{}
+	json.Unmarshal([]byte(body), mlr)
+	return mlr, nil
 }
 
 type MeResponse struct {

internal/reddit/request.go

@@ -8,10 +8,11 @@ import (
 	"strings"
 )
 
-const userAgent = "server:test-api:v0.0.1 (by /u/changelog)"
+const userAgent = "server:test-api:v0.0.2 (by /u/changelog)"
 
 type Request struct {
 	body   url.Values
+	query  url.Values
 	method string
 	token  string
 	url    string
@@ -21,7 +22,7 @@ type Request struct {
 type RequestOption func(*Request)
 
 func NewRequest(opts ...RequestOption) *Request {
-	req := &Request{url.Values{}, "GET", "", "", ""}
+	req := &Request{url.Values{}, url.Values{}, "GET", "", "", ""}
 	for _, opt := range opts {
 		opt(req)
 	}
@@ -31,6 +32,8 @@ func NewRequest(opts ...RequestOption) *Request {
 
 func (r *Request) HTTPRequest() (*http.Request, error) {
 	req, err := http.NewRequest(r.method, r.url, strings.NewReader(r.body.Encode()))
+	req.URL.RawQuery = r.query.Encode()
+
 	req.Header.Add("User-Agent", userAgent)
 
 	if r.token != "" {
@@ -74,3 +77,9 @@ func WithBody(key, val string) RequestOption {
 		req.body.Set(key, val)
 	}
 }
+
+func WithQuery(key, val string) RequestOption {
+	return func(req *Request) {
+		req.query.Set(key, val)
+	}
+}

internal/reddit/types.go

@@ -0,0 +1,34 @@
+package reddit
+
+import "fmt"
+
+type Message struct {
+	ID        string  `json:"id"`
+	Kind      string  `json:"kind"`
+	Author    string  `json:"author"`
+	Subject   string  `json:"subject"`
+	Body      string  `json:"body"`
+	CreatedAt float64 `json:"created_utc"`
+}
+
+type MessageData struct {
+	Message `json:"data"`
+	Kind    string `json:"kind"`
+}
+
+func (md MessageData) FullName() string {
+	return fmt.Sprintf("%s_%s", md.Kind, md.ID)
+}
+
+type MessageListing struct {
+	Messages []MessageData `json:"children"`
+}
+
+type MessageListingResponse struct {
+	MessageListing MessageListing `json:"data"`
+}
+
+type RefreshTokenResponse struct {
+	AccessToken  string `json:"access_token"`
+	RefreshToken string `json:"refresh_token"`
+}

migrations/20210509191431_create_accounts.up.sql

@@ -1,10 +1,10 @@
 CREATE TABLE IF NOT EXISTS accounts (
     id SERIAL PRIMARY KEY,
-    username character(20),
+    username character varying(20),
-    access_token character(64),
+    access_token character varying(64),
-    refresh_token character(64),
+    refresh_token character varying(64),
     expires_at integer,
-    last_message_id character(32),
+    last_message_id character varying(32),
     device_count integer,
     last_checked_at integer
 );