package translators

import (
	"context"
	"time"

	"git.mstar.dev/mstar/goutils/sliceutils"
	"github.com/rs/zerolog/log"

	"git.mstar.dev/mstar/linstrom/activitypub"
	"git.mstar.dev/mstar/linstrom/config"
	"git.mstar.dev/mstar/linstrom/shared"
	"git.mstar.dev/mstar/linstrom/storage-new"
	"git.mstar.dev/mstar/linstrom/storage-new/dbgen"
	"git.mstar.dev/mstar/linstrom/storage-new/models"
	webshared "git.mstar.dev/mstar/linstrom/web/shared"
)

type UserKey struct {
	Id    string `json:"id"`
	Owner string `json:"owner"`
	Pem   string `json:"publicKeyPem"`
}

type User struct {
	Context           []any     `json:"@context"`
	Id                string    `json:"id"`
	Type              string    `json:"type"`
	PreferredUsername string    `json:"preferredUsername"`
	Inbox             string    `json:"inbox"`
	Outboux           string    `json:"outbox"`
	PublicKey         UserKey   `json:"publicKey"`
	Published         time.Time `json:"published"`
	DisplayName       string    `json:"name"`
	Description       *string   `json:"summary,omitempty"`
	PublicUrl         string    `json:"url"`
	Icon              *Media    `json:"icon,omitempty"`
	Banner            *Media    `json:"image,omitempty"`
	Discoverable      bool      `json:"discoverable"`
	Location          *string   `json:"vcard:Address,omitempty"`
	Birthday          *string   `json:"vcard:bday,omitempty"`
	SpeakAsCat        bool      `json:"speakAsCat"`
	IsCat             bool      `json:"isCat"`
	RestrictedFollow  bool      `json:"manuallyApprovesFollowers"`
	Following         string    `json:"following"`
	Followers         string    `json:"followers"`
}

func UserFromStorage(ctx context.Context, id string) (*User, error) {
	user, err := dbgen.User.Where(dbgen.User.ID.Eq(id)).
		Preload(dbgen.User.Icon).Preload(dbgen.User.Banner).
		Preload(dbgen.User.BeingTypes).
		First()

	err = storage.EnsureLocalUserIdHasLinks(id)
	if err != nil {
		log.Warn().Err(err).Msg("Failed to create links for local user")
	}
	apUrl := activitypub.UserIdToApUrl(user.ID)
	var keyBytes string
	if config.GlobalConfig.Experimental.UseEd25519Keys {
		keyBytes = shared.KeyBytesToPem(user.PublicKeyEd, true)
	} else {
		keyBytes = shared.KeyBytesToPem(user.PublicKeyRsa, false)
	}
	data := User{
		Id:                apUrl,
		Type:              "Person",
		PreferredUsername: user.Username,
		Inbox:             apUrl + "/inbox",
		Outboux:           apUrl + "/outbox",
		PublicKey: UserKey{
			Id:    apUrl + "#main-key",
			Owner: apUrl,
			Pem:   keyBytes,
		},
		Published:        user.CreatedAt,
		DisplayName:      user.DisplayName,
		PublicUrl:        config.GlobalConfig.General.GetFullPublicUrl() + "/user/" + user.Username,
		Discoverable:     user.Indexable,
		RestrictedFollow: user.RestrictedFollow,
		Following:        apUrl + "/following",
		Followers:        apUrl + "/followers",
	}
	if user.Description != "" {
		data.Description = &user.Description
	}
	if user.Icon != nil {
		log.Debug().Msg("icon found")
		data.Icon = &Media{
			Type: "Image",
			Url: config.GlobalConfig.General.GetFullPublicUrl() + webshared.EnsurePublicUrl(
				user.Icon.Location,
			),
			MediaType: user.Icon.Type,
		}
	}
	if user.Banner != nil {
		log.Debug().Msg("icon banner")
		data.Banner = &Media{
			Type: "Image",
			Url: config.GlobalConfig.General.GetFullPublicUrl() + webshared.EnsurePublicUrl(
				user.Banner.Location,
			),
			MediaType: user.Banner.Type,
		}
	}
	if sliceutils.ContainsFunc(user.BeingTypes, func(t models.UserToBeing) bool {
		return t.Being == string(models.BEING_CAT)
	}) {
		data.IsCat = true
		// data.SpeakAsCat = true // TODO: Move to check of separate field in db model
	}
	if user.Location.Valid {
		data.Location = &user.Location.String
	}
	if user.Birthday.Valid {
		data.Birthday = &user.Birthday.String
		// data.Birthday = other.IntoPointer(user.Birthday.Time.Format("2006-Jan-02")) //YYYY-Month-DD
	}
	return &data, nil
}