package web

import (
	"strconv"
	"strings"
	"time"

	"github.com/jinzhu/gorm"

	system "dev.sum7.eu/sum7/warehost/system"
)

// Website struct
type Website struct {
	ID      int64
	Name    string   `gorm:"type:varchar(255);column:name" json:"name"`
	Domains []Domain `gorm:"foreignkey:Domain" json:"domains"`
}

// TableName of struct
func (Website) TableName() string { return "web_website" }

// Domain struct
type Domain struct {
	WebsiteID int64  `sql:"type:bigint REFERENCES web_website(id) ON UPDATE CASCADE ON DELETE CASCADE;column:website;primary_key"`
	Name      string `gorm:"type:varchar(255);unique;column:name;primary_key" json:"name"`
}

// TableName of struct
func (Domain) TableName() string { return "web_domain" }

// Manager struct
type Manager struct {
	LoginID   int64        `sql:"type:bigint REFERENCES login(id) ON UPDATE CASCADE ON DELETE CASCADE;column:login;primary_key" json:"-"`
	Login     system.Login `gorm:"foreignkey:Login" json:"login"`
	WebsiteID int64        `sql:"type:bigint REFERENCES web_website(id) ON UPDATE CASCADE ON DELETE CASCADE;column:website;primary_key" json:"-"`
	Website   Website      `gorm:"foreignkey:Website" json:"website"`
}

// TableName of struct
func (Manager) TableName() string { return "web_manager" }

// Media struct
type Media struct {
	ID        int64  `gorm:"primary_key"`
	WebsiteID int64  `sql:"type:bigint REFERENCES web_website(id) ON UPDATE CASCADE ON DELETE CASCADE;column:website;unique_index:media_website_path"  json:"-"`
	Path      string `gorm:"type:varchar(255);column:path;unique_index:media_website_path" json:"path"`
}

// TableName of struct
func (Media) TableName() string { return "web_media" }

// Menu struct
type Menu struct {
	ID        int64   `gorm:"primary_key"`
	WebsiteID int64   `sql:"type:bigint REFERENCES web_website(id) ON UPDATE CASCADE ON DELETE CASCADE;column:website" json:"-"`
	Name      string  `gorm:"type:varchar(255);column:name" json:"name"`
	ParentID  *int64  `sql:"type:bigint REFERENCES web_menu(id) ON UPDATE SET NULL ON DELETE SET NULL;column:menu" json:"parentid"`
	URLID     *int64  `sql:"type:bigint REFERENCES web_url(id) ON UPDATE CASCADE ON DELETE SET NULL;column:url" json:"-"`
	URL       *URL    `gorm:"foreignkey:URL" json:"url"`
	Position  int     `sql:"type:int;column:position" json:"position"`
	Children  []*Menu `json:"children"`
}

// TableName of struct
func (Menu) TableName() string { return "web_menu" }

// URL struct
type URL struct {
	ID        int64  `gorm:"primary_key"`
	WebsiteID int64  `sql:"type:bigint REFERENCES web_website(id) ON UPDATE CASCADE ON DELETE CASCADE;column:website;unique_index:url_website_path" gorm:"unique_index:idx_url_website_path" json:"-"`
	Path      string `gorm:"type:varchar(255);column:path;unique_index:idx_url_website_path" json:"path"`
}

// TableName of struct
func (URL) TableName() string { return "web_url" }

// Page struct
type Page struct {
	ID        int64  `gorm:"primary_key"`
	WebsiteID int64  `sql:"type:bigint REFERENCES web_website(id) ON UPDATE CASCADE ON DELETE CASCADE;column:website" json:"-"`
	URLID     int64  `sql:"type:bigint unique REFERENCES web_url(id) ON UPDATE CASCADE ON DELETE CASCADE;column:url" json:"-"`
	URL       *URL   `gorm:"foreignkey:URL" json:"url"`
	Title     string `gorm:"type:varchar(255);column:title" json:"title"`
	Content   string `gorm:"type:text;column:content" json:"content"`
}

// TableName of struct
func (Page) TableName() string { return "web_page" }

// PostURLType of URL Schema on a blog
type PostURLType int

const (
	// PostURLDate http(s)://DOMAIN/url/year/month/day/posttitle
	PostURLDate = 0
	// PostURLTitle http(s)://DOMAIN/url/posttitle
	PostURLTitle = 1
)

// Blog struct
type Blog struct {
	ID              int64       `gorm:"primary_key"`
	WebsiteID       int64       `sql:"type:bigint REFERENCES web_website(id) ON UPDATE CASCADE ON DELETE CASCADE;column:website" json:"-"`
	URLID           int64       `sql:"type:bigint unique REFERENCES web_url(id) ON UPDATE CASCADE ON DELETE CASCADE;column:url" json:"-"`
	URL             *URL        `gorm:"foreignkey:URL" json:"url"`
	PostURL         PostURLType `sql:"type:int;column:posturl" json:"posturl"`
	PreviewEnable   bool        `gorm:"column:preview_enable" json:"preview_enable"`
	AuthorEnable    bool        `gorm:"column:author_enable" json:"author_enable"`
	CreateAtEnable  bool        `gorm:"column:createat_enable" json:"createat_enable"`
	TimerangeEnable bool        `gorm:"column:timerange_enable" json:"timerange_enable"`
	Title           string      `gorm:"type:varchar(255);column:title" json:"title"`
	Content         string      `gorm:"type:text;column:content" json:"content"`
	Posts           []*BlogPost `gorm:"foreignkey:Blog" json:"posts"`
}

// TableName of struct
func (Blog) TableName() string { return "web_blog" }

// BlogPost struct
type BlogPost struct {
	ID        int64     `gorm:"primary_key"`
	BlogID    int64     `sql:"type:bigint REFERENCES web_blog(id) ON UPDATE CASCADE ON DELETE CASCADE;column:blog" json:"-"`
	Blog      *Blog     `json:"blog"`
	CreateAt  time.Time `sql:"default:current_timestamp" gorm:"column:createat" json:"createat"`
	Author    string    `gorm:"type:varchar(255);column:author" json:"author"`
	Title     string    `gorm:"type:varchar(255);column:title" json:"title"`
	Location  string    `gorm:"type:varchar(255);column:location" json:"location"`
	Start     time.Time `gorm:"column:start" json:"start"`
	End       time.Time `gorm:"column:end" json:"end"`
	Link      string    `gorm:"type:varchar(255);column:link" json:"link"`
	PreviewID *int64    `sql:"type:bigint REFERENCES web_media(id) ON UPDATE CASCADE ON DELETE SET NULL;column:preview" json:"-"`
	Preview   *Media    `gorm:"foreignkey:Media" json:"preview"`
	Summary   string    `gorm:"type:text;column:summary" json:"summary"`
	Content   string    `gorm:"type:text;column:content" json:"content"`
}

func (bg *BlogPost) GetURL() string {
	var parts []string
	if blog := bg.Blog; blog != nil {
		parts = append(parts, blog.URL.Path)
		if blog.PostURL == 1 {
			month := strconv.Itoa(int(bg.CreateAt.Month()))
			if len(month) == 1 {
				month = "0" + month
			}
			parts = append(parts, strconv.Itoa(bg.CreateAt.Year()), month)
		}
	}
	parts = append(parts, bg.Title)
	return "/" + FixPath(strings.Join(parts, "/"))
}

// TableName of struct
func (BlogPost) TableName() string { return "web_blogpost" }

// BuildMenuTree format a array of Menu to a Tree of Menu (with Children)
func BuildMenuTree(items []*Menu) []*Menu {
	menumap := make(map[int64]*Menu)
	var menuexit []*Menu
	for _, item := range items {
		if menumap[item.ID] == nil {
			menumap[item.ID] = item
		}
		if menumap[item.ID].ID == -1 {
			tmp := menumap[item.ID].Children
			menumap[item.ID] = item
			menumap[item.ID].Children = tmp
		}
		if item.ParentID == nil {
			menuexit = append(menuexit, item)
		} else {
			if menumap[*item.ParentID] == nil {
				menumap[*item.ParentID] = &Menu{ID: -1}
			}
			menumap[*item.ParentID].Children = append(menumap[*item.ParentID].Children, item)
		}
	}
	return menuexit
}

// SyncModels to verify the database schema
func SyncModels(dbconnection *gorm.DB) {
	dbconnection.AutoMigrate(&Website{}, &Domain{}, &Manager{}, &URL{}, &Media{}, &Menu{}, &Page{}, &Blog{}, &BlogPost{})
}