package main

import (
	"gorm.io/driver/sqlite"
	"gorm.io/gorm"
	"log"
	"os"
	. "planner/models"
)

func bootstrapDatabase() *gorm.DB {
	fi, err := os.Stat("./db.sqlite")
	var db *gorm.DB
	if err != nil {
		if os.IsNotExist(err) {
			db, err := gorm.Open(sqlite.Open("./db.sqlite"), &gorm.Config{})
			if err != nil {
				log.Fatal(err)
				return nil
			}

			db.AutoMigrate(&User{}, &Member{}, &Plan{}, &Poll{}, &Vote{})

			//var tables = [...]struct {
			//	key   string
			//	query string
			//}{
			//	{key: "users", query: "CREATE TABLE users(username STRING PRIMARY KEY, password STRING)"},
			//	{key: "plans", query: "CREATE TABLE plans(id INTEGER PRIMARY KEY AUTOINCREMENT, name STRING, owner STRING, FOREIGN KEY(owner) REFERENCES users(username))"},
			//	{key: "plan_user_relations", query: "CREATE TABLE plan_user_relations(username STRING, plan INTEGER, PRIMARY KEY(username, plan), FOREIGN KEY username REFERENCES user(username), FOREIGN KEY plan REFERENCES plans(id))"},
			//	{key: "polls", query: "CREATE TABLE polls(id INTEGER PRIMARY KEY AUTOINCREMENT, plan INTEGER, name STRING, options JSON, FOREIGN KEY plan REFERENCES plans(id))"},
			//	{key: "votes", query: "CREATE TABLE votes(id INTEGER, poll INTEGER, user STRING, value JSON, FOREIGN KEY poll REFERENCES polls(id), FOREIGN KEY user REFERENCES user(username))"},
			//}

			//for _, table := range tables {
			//	_, err = db.Exec(table.query)
			//	if err != nil {
			//		log.Fatal("Failed to create " + table.key + "  table")
			//		log.Fatal(err)
			//		return false
			//	}
			//}
			return db
		} else {
			log.Fatal(err)
			return nil
		}
	}

	if !fi.Mode().IsRegular() {
		log.Fatal("File is not regular file")
		return nil
	}

	db, err = gorm.Open(sqlite.Open("./db.sqlite"), &gorm.Config{})

	if err != nil {
		log.Fatal(err)
		return nil
	}

	return db
}