package cache

import (
	"context"
	"github.com/fthvgb1/wp-go/app/cmd/cachemanager"
	"github.com/fthvgb1/wp-go/app/pkg/config"
	"github.com/fthvgb1/wp-go/app/pkg/dao"
	"github.com/fthvgb1/wp-go/app/pkg/logs"
	"github.com/fthvgb1/wp-go/app/pkg/models"
	"github.com/fthvgb1/wp-go/cache"
	"github.com/fthvgb1/wp-go/helper/slice"
	"github.com/fthvgb1/wp-go/safety"
	"time"
)

var postContextCache *cache.MapCache[uint64, dao.PostContext]
var categoryAndTagsCaches *cache.MapCache[string, []models.TermsMy]
var recentPostsCaches *cache.VarCache[[]models.Posts]
var recentCommentsCaches *cache.VarCache[[]models.Comments]
var postCommentCaches *cache.MapCache[uint64, []uint64]
var postsCache *cache.MapCache[uint64, models.Posts]

var postMetaCache *cache.MapCache[uint64, map[string]any]

var monthPostsCache *cache.MapCache[string, []uint64]
var postListIdsCache *cache.MapCache[string, dao.PostIds]
var searchPostIdsCache *cache.MapCache[string, dao.PostIds]
var maxPostIdCache *cache.VarCache[uint64]

var usersNameCache *cache.MapCache[string, models.Users]
var feedCache *cache.VarCache[[]string]

var postFeedCache *cache.MapCache[string, string]

var commentsFeedCache *cache.VarCache[[]string]

var newCommentCache *cache.MapCache[string, string]

var allUsernameCache *cache.VarCache[map[string]struct{}]

func InitActionsCommonCache() {
	c := config.GetConfig()

	searchPostIdsCache = cachemanager.NewMemoryMapCache(nil, dao.SearchPostIds, c.CacheTime.SearchPostCacheTime, "searchPostIds", func() time.Duration {
		return config.GetConfig().CacheTime.SearchPostCacheTime
	})

	postListIdsCache = cachemanager.NewMemoryMapCache(nil, dao.SearchPostIds, c.CacheTime.PostListCacheTime, "listPostIds", func() time.Duration {
		return config.GetConfig().CacheTime.PostListCacheTime
	})

	monthPostsCache = cachemanager.NewMemoryMapCache(nil, dao.MonthPost, c.CacheTime.MonthPostCacheTime, "monthPostIds", func() time.Duration {
		return config.GetConfig().CacheTime.MonthPostCacheTime
	})

	postContextCache = cachemanager.NewMemoryMapCache(nil, dao.GetPostContext, c.CacheTime.ContextPostCacheTime, "postContext", func() time.Duration {
		return config.GetConfig().CacheTime.ContextPostCacheTime
	})

	postsCache = cachemanager.NewMemoryMapCache(dao.GetPostsByIds, nil, c.CacheTime.PostDataCacheTime, "postData", func() time.Duration {
		return config.GetConfig().CacheTime.PostDataCacheTime
	})

	postMetaCache = cachemanager.NewMemoryMapCache(dao.GetPostMetaByPostIds, nil, c.CacheTime.PostDataCacheTime, "postMetaData", func() time.Duration {
		return config.GetConfig().CacheTime.PostDataCacheTime
	})

	categoryAndTagsCaches = cachemanager.NewMemoryMapCache(nil, dao.CategoriesAndTags, c.CacheTime.CategoryCacheTime, "categoryAndTagsData", func() time.Duration {
		return config.GetConfig().CacheTime.CategoryCacheTime
	})

	recentPostsCaches = cache.NewVarCache(dao.RecentPosts, c.CacheTime.RecentPostCacheTime)

	recentCommentsCaches = cache.NewVarCache(dao.RecentComments, c.CacheTime.RecentCommentsCacheTime)

	postCommentCaches = cachemanager.NewMemoryMapCache(nil, dao.PostComments, c.CacheTime.PostCommentsCacheTime, "postCommentIds", func() time.Duration {
		return config.GetConfig().CacheTime.PostCommentsCacheTime
	})

	maxPostIdCache = cache.NewVarCache(dao.GetMaxPostId, c.CacheTime.MaxPostIdCacheTime)

	cachemanager.NewMemoryMapCache(nil, dao.GetUserById, c.CacheTime.UserInfoCacheTime, "userData", func() time.Duration {
		return config.GetConfig().CacheTime.UserInfoCacheTime
	})

	usersNameCache = cachemanager.NewMemoryMapCache(nil, dao.GetUserByName, c.CacheTime.UserInfoCacheTime, "usernameMapToUserData", func() time.Duration {
		return config.GetConfig().CacheTime.UserInfoCacheTime
	})

	cachemanager.NewMemoryMapCache(dao.GetCommentByIds, nil, c.CacheTime.CommentsCacheTime, "commentData", func() time.Duration {
		return config.GetConfig().CacheTime.CommentsCacheTime
	})

	allUsernameCache = cache.NewVarCache(dao.AllUsername, c.CacheTime.UserInfoCacheTime)

	feedCache = cache.NewVarCache(feed, time.Hour)

	postFeedCache = cachemanager.NewMemoryMapCache(nil, postFeed, time.Hour, "postFeed")

	commentsFeedCache = cache.NewVarCache(commentsFeed, time.Hour)

	newCommentCache = cachemanager.NewMemoryMapCache[string, string](nil, nil, 15*time.Minute, "NewComment")

	InitFeed()
}

type Arch struct {
	data  []models.PostArchive
	fn    func(context.Context) ([]models.PostArchive, error)
	month time.Month
}

var arch = safety.NewVar(Arch{
	fn: dao.Archives,
})

func Archives(ctx context.Context) []models.PostArchive {
	a := arch.Load()
	data := a.data
	l := len(data)
	m := time.Now().Month()
	if l > 0 && a.month != m || l < 1 {
		r, err := a.fn(ctx)
		if err != nil {
			logs.Error(err, "set cache fail")
			return nil
		}
		a.month = m
		a.data = r
		arch.Store(a)
		data = r
	}
	return data
}

// CategoriesTags categories or tags
//
// t is constraints.Tag or constraints.Category
func CategoriesTags(ctx context.Context, t ...string) []models.TermsMy {
	tt := ""
	if len(t) > 0 {
		tt = t[0]
	}
	r, err := categoryAndTagsCaches.GetCache(ctx, tt, time.Second, ctx, tt)
	logs.IfError(err, "get category fail")
	return r
}
func AllCategoryTagsNames(ctx context.Context, t ...string) map[string]struct{} {
	tt := ""
	if len(t) > 0 {
		tt = t[0]
	}
	r, err := categoryAndTagsCaches.GetCache(ctx, tt, time.Second, ctx, tt)
	if err != nil {
		logs.Error(err, "get category fail")
		return nil
	}
	return slice.ToMap(r, func(t models.TermsMy) (string, struct{}) {
		return t.Name, struct{}{}
	}, true)
}