package presets

import (
	"fmt"
	"net/http"
	"net/url"

	"github.com/qor5/ui/vuetifyx"
	"github.com/qor5/web"
	h "github.com/theplant/htmlgo"
)

type ComponentFunc func(ctx *web.EventContext) h.HTMLComponent
type ObjectComponentFunc func(obj interface{}, ctx *web.EventContext) h.HTMLComponent
type EditingTitleComponentFunc func(obj interface{}, defaultTitle string, ctx *web.EventContext) h.HTMLComponent

type FieldComponentFunc func(obj interface{}, field *FieldContext, ctx *web.EventContext) h.HTMLComponent

type ActionComponentFunc func(id string, ctx *web.EventContext) h.HTMLComponent
type ActionUpdateFunc func(id string, ctx *web.EventContext) (err error)

type BulkActionComponentFunc func(selectedIds []string, ctx *web.EventContext) h.HTMLComponent
type BulkActionUpdateFunc func(selectedIds []string, ctx *web.EventContext) (err error)
type BulkActionSelectedIdsProcessorFunc func(selectedIds []string, ctx *web.EventContext) (processedSelectedIds []string, err error)
type BulkActionSelectedIdsProcessorNoticeFunc func(selectedIds []string, processedSelectedIds []string, unactionableIds []string) string

type MessagesFunc func(r *http.Request) *Messages

// Data Layer
type DataOperator interface {
	Search(obj interface{}, params *SearchParams, ctx *web.EventContext) (r interface{}, totalCount int, err error)
	// return ErrRecordNotFound if record not found
	Fetch(obj interface{}, id string, ctx *web.EventContext) (r interface{}, err error)
	Save(obj interface{}, id string, ctx *web.EventContext) (err error)
	Delete(obj interface{}, id string, ctx *web.EventContext) (err error)
}

type SetterFunc func(obj interface{}, ctx *web.EventContext)
type FieldSetterFunc func(obj interface{}, field *FieldContext, ctx *web.EventContext) (err error)
type ValidateFunc func(obj interface{}, ctx *web.EventContext) (err web.ValidationErrors)

type SearchFunc func(model interface{}, params *SearchParams, ctx *web.EventContext) (r interface{}, totalCount int, err error)
type FetchFunc func(obj interface{}, id string, ctx *web.EventContext) (r interface{}, err error)
type SaveFunc func(obj interface{}, id string, ctx *web.EventContext) (err error)
type DeleteFunc func(obj interface{}, id string, ctx *web.EventContext) (err error)

type SQLCondition struct {
	Query string
	Args  []interface{}
}

type SearchParams struct {
	KeywordColumns []string
	Keyword        string
	SQLConditions  []*SQLCondition
	PerPage        int64
	Page           int64
	OrderBy        string
	PageURL        *url.URL
}

type SlugDecoder interface {
	PrimaryColumnValuesBySlug(slug string) map[string]string
}

func RecoverPrimaryColumnValuesBySlug(dec SlugDecoder, slug string) (r map[string]string, err error) {
	defer func() {
		if e := recover(); e != nil {
			r = nil
			err = fmt.Errorf("wrong slug: %v", slug)
		}
	}()
	r = dec.PrimaryColumnValuesBySlug(slug)
	return r, nil
}

type SlugEncoder interface {
	PrimarySlug() string
}

type FilterDataFunc func(ctx *web.EventContext) vuetifyx.FilterData

type FilterTab struct {
	ID    string
	Label string
	// render AdvancedLabel if it is not nil
	AdvancedLabel h.HTMLComponent
	Query         url.Values
}

type FilterTabsFunc func(ctx *web.EventContext) []*FilterTab