//
//  pool-import
//
//  Copyright (C) 2016 Christian Pointner <equinox@helsinki.at>
//
//  This file is part of pool-import.
//
//  pool-import is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  any later version.
//
//  pool-import is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with pool-import. If not, see <http://www.gnu.org/licenses/>.
//

package main

import (
	"log"
	"os"
	"sort"

	"code.helsinki.at/rhrd-go/rddb"
	"code.helsinki.at/rhrd-go/rhimport"
)

const (
	NEW_RD_CONF = "/etc/rd.conf"
	OLD_RD_CONF = "rd.conf"
)

func main() {
	if len(os.Args) < 3 {
		log.Fatal("Usage: pool-import <old pool group> <new pool group>")
	}
	old_group := os.Args[1]
	new_group := os.Args[2]

	impconf, err := rhimport.NewConfig(NEW_RD_CONF, "http://localhost/rd-bin/rdxport.cgi", "/tmp", "snd/")
	if err != nil {
		log.Fatal("Error parsing configuration file:", err)
	}

	newdb, err := rddb.NewDB(NEW_RD_CONF)
	if err != nil {
		log.Fatal("Error initializing NEW Rivdenll DB:", err)
	}
	defer newdb.Cleanup()

	stdlog := log.New(os.Stderr, "[std] ", log.LstdFlags)
	dbglog := log.New(os.Stderr, "[dbg] ", log.LstdFlags)
	sessions, err := rhimport.NewSessionStore(impconf, newdb.GetInterface(), stdlog, dbglog)
	if err != nil {
		log.Fatal("Error initializing Session Store:", err)
	}
	defer sessions.Cleanup()

	olddb, err := NewDB(OLD_RD_CONF)
	if err != nil {
		log.Fatal("Error initializing OLD Rivdenll DB:", err)
	}
	defer olddb.Cleanup()
	olddbi := olddb.GetInterface()

	pool := PoolListEntry{old_group, ""}
	carts, err := olddbi.GetPoolCartList(pool)
	if err != nil {
		log.Fatal("Error fetching Pool cart list:", err)
	}

	log.Printf("will import: %d carts from old:%s -> new:%s", len(carts), old_group, new_group)

	var keys []int
	for k := range carts {
		keys = append(keys, int(k))
	}
	sort.Ints(keys)
	for _, k := range keys {
		cart := carts[uint(k)]
		if len(cart.Cuts) == 0 {
			log.Printf("Warning: Cart %d has no cuts - ingoring it", cart.Number)
			continue
		} else if len(cart.Cuts) > 1 {
			log.Printf("Warning: Cart %d has multiple cuts - will only use the first", cart.Number)
		}
		cut := cart.Cuts[0].Number
		log.Printf(" %06d_%03d: '%s' / '%s' / '%s'", cart.Number, cut, cart.Artist, cart.Album, cart.Title)

	}
}