package cabana_test

import (
	"io/fs"
	"os"
	"time"

	"git.golem15.com/golem15/summercms/modules/backpack"
	"git.golem15.com/golem15/summercms/modules/pact"
)

// Post is the model behind the acme.blog posts controller.
type Post struct {
	ID          uint       `gorm:"column:id;primaryKey"`
	Title       string     `gorm:"column:title"`
	Slug        string     `gorm:"column:slug"`
	Status      string     `gorm:"column:status"`
	Published   bool       `gorm:"column:published"`
	PublishedAt *time.Time `gorm:"column:published_at"`
	Content     string     `gorm:"column:content"`
}

func (Post) TableName() string { return "acme_blog_posts" }

// Fillable lists the columns the admin form may write.
func (Post) Fillable() []string {
	return []string{"title", "slug", "status", "published", "content"}
}

// PostsController is the admin controller for posts: the Go form of a
// WinterCMS controller with the List and Form behaviours.
type PostsController struct{}

var (
	_ pact.AdminController     = PostsController{}
	_ pact.AdminRecordSource   = PostsController{}
	_ pact.AdminPermissioned   = PostsController{}
	_ pact.HasAdminControllers = (*BlogPlugin)(nil)
)

// ID is the controller ID; its admin API path is /acme/blog/posts.
func (PostsController) ID() string { return "acme.blog.posts" }

// ModelName must equal modelClass in the YAML.
func (PostsController) ModelName() string { return "Post" }

// ConfigDir holds config_list.yaml, config_form.yaml and config_filter.yaml.
func (PostsController) ConfigDir() string { return "controllers/posts" }

// NewRecord returns the model the generic admin handlers query.
func (PostsController) NewRecord() any { return &Post{} }

// RequiredPermissions are checked before any schema or query.
func (PostsController) RequiredPermissions() []string {
	return []string{"acme.blog.access_posts"}
}

// BlogSettings is the singleton row behind the plugin's settings page.
type BlogSettings struct {
	ID              uint `gorm:"column:id;primaryKey"`
	PostsPerPage    int  `gorm:"column:posts_per_page"`
	CommentsEnabled bool `gorm:"column:comments_enabled"`
}

func (BlogSettings) TableName() string { return "acme_blog_settings" }

func (BlogSettings) Fillable() []string { return []string{"posts_per_page", "comments_enabled"} }

// Rules validates a settings save, as a WinterCMS settings model's $rules.
func (BlogSettings) Rules() map[string]string {
	return map[string]string{"posts_per_page": "required|integer|between:1,100"}
}

// BlogPlugin is the acme.blog plugin; only its backend surface is shown.
type BlogPlugin struct{}

var (
	_ pact.AdminAssets    = (*BlogPlugin)(nil)
	_ pact.HasPermissions = (*BlogPlugin)(nil)
	_ pact.HasNavigation  = (*BlogPlugin)(nil)
	_ pact.HasSettings    = (*BlogPlugin)(nil)
)

func (p *BlogPlugin) ID() string                       { return "acme.blog" }
func (p *BlogPlugin) Requires() []string               { return nil }
func (p *BlogPlugin) Register(app *backpack.App) error { return nil }
func (p *BlogPlugin) Boot(app *backpack.App) error     { return nil }

// AdminControllers registers the plugin's admin controllers.
func (p *BlogPlugin) AdminControllers() []pact.AdminController {
	return []pact.AdminController{PostsController{}}
}

// AdminFS is the plugin's embedded controllers/ and models/ tree. A real
// plugin returns an embed.FS; the example reads the same files from testdata.
func (p *BlogPlugin) AdminFS() fs.FS { return os.DirFS("testdata/docs") }

// Permissions replaces registerPermissions().
func (p *BlogPlugin) Permissions() []pact.Permission {
	return []pact.Permission{
		{Code: "acme.blog.access_posts", Tab: "acme.blog::lang.plugin.name", Label: "acme.blog::lang.permissions.posts"},
		{Code: "acme.blog.access_settings", Tab: "acme.blog::lang.plugin.name", Label: "acme.blog::lang.permissions.settings"},
	}
}

// Navigation replaces registerNavigation().
func (p *BlogPlugin) Navigation() []pact.NavigationItem {
	return []pact.NavigationItem{{
		Code:        "blog",
		Label:       "acme.blog::lang.plugin.name",
		Icon:        "icon-pencil",
		Permissions: []string{"acme.blog.access_posts"},
		Controller:  "acme.blog.posts",
		SideMenu: []pact.NavigationItem{
			{Code: "posts", Label: "acme.blog::lang.posts.title", Controller: "acme.blog.posts"},
		},
	}}
}

// Settings replaces registerSettings().
func (p *BlogPlugin) Settings() []pact.SettingsItem {
	return []pact.SettingsItem{{
		Code:        "blog",
		Label:       "acme.blog::lang.settings.label",
		Description: "acme.blog::lang.settings.description",
		Category:    "acme.blog::lang.plugin.name",
		Icon:        "icon-pencil",
		Model:       "BlogSettings",
		Permissions: []string{"acme.blog.access_settings"},
		Form:        "models/settings/fields.yaml",
		NewModel:    func() any { return &BlogSettings{} },
	}}
}