Initial commit

README.md

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+# Bahá'í message of the day tool
+
+Early stage. The database needed can be found at prayers.kiefte.eu

main.go

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+package main
+
+import (
+	"database/sql"
+	"fmt"
+	"time"
+	"math/rand"
+	"os"
+
+	_ "modernc.org/sqlite"
+)
+
+func main() {
+	rand.Seed(time.Now().UnixNano())
+	db, err := sql.Open("sqlite", "prayers.db")
+	if err != nil {
+		fmt.Println("put prayers.db alongside the binary: "+ err.Error())
+		os.Exit(1)
+	}
+	langcode := "en"
+	if len(os.Args) > 1 {
+		langcode = os.Args[1]
+	}
+	rows, err := db.Query("select text, author from prayers where language = ?", langcode)
+	if err != nil {
+		fmt.Println("database query failed: " +err.Error())
+		os.Exit(2)
+	}
+	var prayers []string
+	for rows.Next() {
+		var prayer, author string
+		rows.Scan(&prayer, &author)
+		prayers = append(prayers, prayer+"\n\n-- "+author)
+	}
+	if len(prayers) < 1 {
+		fmt.Println("query returns no prayers")
+		os.Exit(3)
+	}
+	fmt.Println(prayers[rand.Intn(len(prayers))])
+}