package main

import "log"
import "encoding/json"
import "database/sql"

var db *sql.DB
var dbVersion string
var dbAdapter string

// ErrNoRows is an alias of sql.ErrNoRows, just in case we end up with non-database/sql datastores
var ErrNoRows = sql.ErrNoRows

func initDatabase() (err error) {
	// Engine specific code
	err = _initDatabase()
	if err != nil {
		return err
	}

	log.Print("Loading the usergroups.")
	groups = append(groups, Group{ID: 0, Name: "System"})

	rows, err := get_groups_stmt.Query()
	if err != nil {
		return err
	}
	defer rows.Close()

	i := 1
	for ; rows.Next(); i++ {
		group := Group{ID: 0}
		err := rows.Scan(&group.ID, &group.Name, &group.PermissionsText, &group.PluginPermsText, &group.IsMod, &group.IsAdmin, &group.IsBanned, &group.Tag)
		if err != nil {
			return err
		}

		// Ugh, you really shouldn't physically delete these items, it makes a big mess of things
		if group.ID != i {
			log.Print("Stop physically deleting groups. You are messing up the IDs. Use the Group Manager or delete_group() instead x.x")
			fillGroupIDGap(i, group.ID)
		}

		err = json.Unmarshal(group.PermissionsText, &group.Perms)
		if err != nil {
			return err
		}
		if dev.DebugMode {
			log.Print(group.Name + ": ")
			log.Printf("%+v\n", group.Perms)
		}

		err = json.Unmarshal(group.PluginPermsText, &group.PluginPerms)
		if err != nil {
			return err
		}
		if dev.DebugMode {
			log.Print(group.Name + ": ")
			log.Printf("%+v\n", group.PluginPerms)
		}

		//group.Perms.ExtData = make(map[string]bool)
		groups = append(groups, group)
	}
	err = rows.Err()
	if err != nil {
		return err
	}
	groupCapCount = i

	log.Print("Binding the Not Loggedin Group")
	GuestPerms = groups[6].Perms

	log.Print("Loading the forums.")
	fstore = NewMemoryForumStore()
	err = fstore.LoadForums()
	if err != nil {
		return err
	}

	log.Print("Loading the forum permissions.")
	err = buildForumPermissions()
	if err != nil {
		return err
	}

	log.Print("Loading the settings.")
	err = LoadSettings()
	if err != nil {
		return err
	}

	log.Print("Loading the plugins.")
	err = LoadPlugins()
	if err != nil {
		return err
	}

	log.Print("Loading the themes.")
	return LoadThemes()
}