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