package main

import (
    "database/sql"
    "fmt"
    "log"
    "time"
    "net/http"

    "github.com/shopspring/decimal"
    _ "github.com/lib/pq"
    "github.com/jmoiron/sqlx"
)

type Transaction struct {
    Id          int             `db:"trns_id"`
    Amount      decimal.Decimal `db:"trns_amount"`
    Description sql.NullString  `db:"trns_description"`
    Account     int             `db:"trns_account"`
    Bucket      sql.NullInt64   `db:"trns_bucket"`
    Date        time.Time       `db:"trns_date"`
}

func hello(w http.ResponseWriter, req *http.Request) {
    fmt.Fprintf(w, "hello\n")
}

func headers(w http.ResponseWriter, req *http.Request) {
    for name, headers := range req.Header {
        for _, h := range headers {
            fmt.Fprintf(w, "%v: %v\n", name, h)
        }
    }
}

func main() {
    log.SetPrefix("RecountServer: ")
    log.SetFlags(0)

    // 
    db, err := sqlx.Connect("postgres", "user=rcntuser password=Devel@pmentPa$$w0rd host=10.0.0.183 dbname=Borealis sslmode=disable")
    if err != nil {
        log.Fatal(err)
    }
    log.Print("Database connected")
    defer db.Close()

    // Confirm a successful connection.
    if err := db.Ping(); err != nil {
        log.Fatal(err)
    }
    log.Print("Database successfully pinged")

    transactions := []Transaction{}
    err = db.Select(&transactions, "SELECT trns_id, trns_amount, trns_description, trns_account, trns_bucket, trns_date FROM rcnt.transactions ORDER BY trns_id DESC")
    if err != nil {
        log.Fatal(err)
    }
    fmt.Print(fmt.Sprintf("%+v\n", transactions))
    log.Print("Select has been run")

    for _, trns := range transactions {
        if trns.Description.Valid {
            log.Print(fmt.Sprintf("%v : %#v", trns.Amount, trns.Id))
        } else {
            log.Print("amount invalid")
        }
    }

    log.Print("select all run is done")

    http.HandleFunc("/hello", hello)
    http.HandleFunc("/headers", headers)

    http.ListenAndServe(":8090", nil)

    //fmt.Println("Hello World")
}