From 64c5003fad33b49fd30f92afae41f4fd97a4a6e0 Mon Sep 17 00:00:00 2001
From: idanoo <daniel@m2.nz>
Date: Tue, 14 Feb 2023 00:43:43 +1300
Subject: [PATCH] Progress

---
 .env.example |  8 ++---
 go.mod       |  5 +++
 go.sum       |  2 ++
 main.go      | 87 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 98 insertions(+), 4 deletions(-)
 create mode 100644 go.mod
 create mode 100644 go.sum
 create mode 100644 main.go

diff --git a/.env.example b/.env.example
index 2cc74b1..d0c6be8 100644
--- a/.env.example
+++ b/.env.example
@@ -1,4 +1,4 @@
-DISCORD_WEBHOOK=
-RTL_FREQ=157.950
-RTL_DEVICE_ID=
-RTL_GAIN=40.2
\ No newline at end of file
+DISCORD_WEBHOOK=""
+RTL_FREQ="157.50"
+RTL_DEVICE_ID=""
+RTL_GAIN="40.2"
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..5b37040
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,5 @@
+module go-pager-discord
+
+go 1.20
+
+require github.com/joho/godotenv v1.5.1
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..d61b19e
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,2 @@
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..4491bd9
--- /dev/null
+++ b/main.go
@@ -0,0 +1,87 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+
+	"github.com/joho/godotenv"
+)
+
+var (
+	DISCORD_WEBHOOK string
+	RTL_FREQ        string
+	RTL_DEVICE_ID   string
+	RTL_GAIN        string
+
+	// Emojies to replace
+	emojis = map[string][]string{
+		":house:":                     []string{"house", "roof"},
+		":blue_car:":                  []string{"mva", "mvc", "car "},
+		":fire:":                      []string{"fire", "smoke", "smoking", "chimney"},
+		":ocean:":                     []string{"flood"},
+		":evergreen_tree:":            []string{"tree"},
+		":wind_blowing_face:":         []string{"wind", "blow"},
+		":zap:":                       []string{"power", "electric", "spark"},
+		":ambulance: :purple_circle:": []string{"purple"},
+		":ambulance:":                 []string{"chest pain", "not alert", "seizure", "breath", "pain", "fall ", "orange", "sweats", "acute", "red 1", "red 2", "respitory", "bleeding", "purple"},
+		":biohazard":                  []string{"hazchem"},
+		":helmet_with_cross:":         []string{"resc "},
+	}
+
+	// Phrases to skip
+	skip = []string{
+		"this is a test",
+		"enabled demodulators",
+		"test page",
+		"assigned to station",
+	}
+)
+
+// Load .env file
+func init() {
+	err := godotenv.Load()
+	if err != nil {
+		log.Fatal("Error loading .env file")
+	}
+
+	// Webhook to post to
+	DISCORD_WEBHOOK = os.Getenv("DISCORD_WEBHOOK")
+	if DISCORD_WEBHOOK == "" {
+		log.Fatal("DISCORD_WEBHOOK empty or invalid")
+	}
+
+	// Frequency to listen to
+	RTL_FREQ = os.Getenv("RTL_FREQ")
+	if RTL_FREQ == "" {
+		log.Fatal("RTL_FREQ empty or invalid")
+	}
+
+	// Not required - if not set, skip setting
+	RTL_DEVICE_ID = os.Getenv("RTL_DEVICE_ID")
+
+	// Receiver gain
+	RTL_GAIN = os.Getenv("RTL_GAIN")
+	if RTL_FREQ == "" {
+		log.Fatal("RTL_GAIN empty or invalid")
+	}
+}
+
+// Start func
+func main() {
+	log.Println("Booting go-pager-discord")
+
+	// Start running rtl_fm + multimon
+	deviceID := ""
+	if RTL_DEVICE_ID != "" {
+		deviceID = fmt.Sprintf("-d %s", RTL_DEVICE_ID)
+	}
+
+	// Build command
+	_ = fmt.Sprintf(
+		"rtl_fm -M fm -d %s -f %sM -g %s -s 22050 -- | multimon-ng -t raw -a POCSAG512 -a POCSAG1200 -a FLEX -a POCSAG2400 /dev/stdin",
+		deviceID,
+		RTL_FREQ,
+		RTL_GAIN,
+	)
+}