// Package `tracking` defines a generic track (sort of record) type
// and a container type that allows storing of tracks in a SQL database.
package tracking

import (
	"time"

	lib "git.sr.ht/~cco/go-scopes"
	"git.sr.ht/~cco/go-scopes/storage"
	sql "git.sr.ht/~cco/go-scopes/storage"
)

type track struct {
	TrackId   uint
	Head      map[string]string
	TimeStamp *time.Time
	Data      lib.Payload
	Container *container
}

type container struct {
	headFields []string
	indexes    [][]string
	storage    *sql.Storage
}

func Container(db *sql.Storage) *container {
	return &container{
		headFields: []string{"taskId", "userName"},
		indexes:    [][]string{[]string{"taskId", "userName"}, []string{"userName"}},
		storage:    db,
	}
}

func Create(cont *container) *container {
	db := cont.storage
	data := map[string]interface{}{
		"schema":     db.Schema,
		"tablename":  "tracks",
		"headFields": cont.headFields,
		"indexes":    cont.indexes,
		"params":     db.Params,
	}
	sql := storage.BuildSql(SqlCreate, data)
	println(sql)
	_, err := db.Exec(sql)
	if err == nil {
		return cont
	}
	return nil
}