package db

import (
	"path"

	"gorm.io/gorm"
	"gorm.io/gorm/logger"
	"gorm.io/driver/sqlite"
    log "github.com/sirupsen/logrus"

	"reichard.io/imagini/internal/config"
	"reichard.io/imagini/internal/models"
)

type DBManager struct {
    db  *gorm.DB
}

func NewMgr(c *config.Config) *DBManager {
    gormConfig := &gorm.Config{
        PrepareStmt: true,
        Logger: logger.Default.LogMode(logger.Silent),
    }

    // Create manager
    dbm := &DBManager{}

    if c.DBType == "SQLite" {
        dbLocation := path.Join(c.ConfigPath, "imagini.db")
        dbm.db, _ = gorm.Open(sqlite.Open(dbLocation), gormConfig)
    } else {
        log.Fatal("Unsupported Database")
    }

    // Initialize database
    dbm.db.AutoMigrate(&models.ServerSetting{})
    dbm.db.AutoMigrate(&models.User{})
    dbm.db.AutoMigrate(&models.MediaItem{})
    dbm.db.AutoMigrate(&models.Tag{})
    dbm.db.AutoMigrate(&models.Album{})

    // Determine whether to bootstrap
    var count int64
    dbm.db.Model(&models.User{}).Count(&count)
    if count == 0 {
        dbm.bootstrapDatabase()
    }

    return dbm
}

func (dbm *DBManager) bootstrapDatabase() {
    log.Info("[query] Bootstrapping database.")
    err := dbm.CreateUser(models.User{
        Username: "admin",
        Password: "admin",
        AuthType: "Local",
    })

    if err != nil {
        log.Fatal("[query] Unable to bootstrap database.")
    }
}

func (dbm *DBManager) ItemsFromAlbum(user models.User, album models.Album) []models.MediaItem {
    var mediaItems []models.MediaItem
    // db.Table("media_albums").
    //     Select("media_item.*").
    //     Joins("INNER JOIN media_items ON media_albums.ID = media_items.Albums").
    //     Where("media_albums.album_id = ? AND media_items.User = ?", albumID, userID).


    dbm.db.
        //Where("album = ? AND user = ?", albumID, userID).
        Find(&mediaItems)
    return mediaItems

    // db.Raw(`
    //     SELECT
    //         MediaItems.*
    //     FROM
    //         MediaAlbums
    //     INNER JOIN MediaItems ON MediaAlbums.mediaID = MediaItems.mediaID
    //     WHERE MediaAlbums.albumID = ? AND MediaItems.userID = ?`, albumID, userID)
}

// func ItemsFromTags(userID int, tagID int) []MediaItem {
//     return nil
// }
// 
// func IndexMediaItems(newItems []MediaItem) {
// }

// func PopulateTestData() {
//     user1 := User{Username: "Evan", Email: "evan@reichard.io", FirstName: "Evan", LastName: "Reichard", AuthType: "LDAP", Salt: "1234", HashedPWSalt: "1234"}
//     user2 := User{Username: "Ryan", Email: "ryan@example.com", FirstName: "Ryan", LastName: "Dunfrey", AuthType: "Local", Salt: "2345", HashedPWSalt: "2345"}
//     user3 := User{Username: "Bill", Email: "bill@example.com", FirstName: "Bill", LastName: "Smith", AuthType: "LDAP", Salt: "3456", HashedPWSalt: "3456"}
// 
//     mi1 := MediaItem{
//         User: user1,
//         EXIFDate: time.Now(),
//         Latitude: "1234",
//         Longitude: "1234",
//         RelPath: "./1234.jpg",
//         Tags:   []Tag{
//             {Name: "Tag1"},
//             {Name: "Tag2"},
//         },
//         Albums:   []Album{
//             {Name: "Album1"},
//             {Name: "Album2"},
//         },
//     }
// 
//     mi2 := MediaItem{
//         User: user2,
//         EXIFDate: time.Now(),
//         Latitude: "1234",
//         Longitude: "1234",
//         RelPath: "./1234.jpg",
//         Tags:   []Tag{
//             {Name: "Tag3"},
//             {Name: "Tag4"},
//         },
//         Albums:   []Album{
//             {Name: "Album3"},
//             {Name: "Album4"},
//         },
//     }
// 
//     mi3 := MediaItem{
//         User: user3,
//         EXIFDate: time.Now(),
//         Latitude: "1234",
//         Longitude: "1234",
//         RelPath: "./1234.jpg",
//         Tags:   []Tag{
//             {Name: "Tag4"},
//             {Name: "Tag5"},
//         },
//         Albums:   []Album{
//             {Name: "Album1"},
//             {Name: "Album7"},
//         },
//     }
// 
//     // db.Create(&user1)
//     // db.Create(&user2)
//     // db.Create(&user3)
//     db.Create(&mi1)
//     db.Create(&mi2)
//     db.Create(&mi3)
// }