package v01

import (
	"encoding/json"
	"sync"

	patch "github.com/evanphx/json-patch/v5"
)

type (
	config struct {
		lock      *sync.Mutex
		Feedback  configFeedback
		Users     map[string]configUser
		Players   []configPlayer
		Quiet     bool
		Broadcast configBroadcast
		GM        configGM
	}

	configGM struct {
		Hotwords map[string]configGMHotword
	}

	configGMHotword struct {
		Call string
		Args []string
	}

	configBroadcast struct {
		Message string
	}

	configFeedback struct {
		Addr   string
		TTSURL string
	}

	configUser struct {
		Meta  configUserMeta
		State configUserState
	}

	configUserMeta struct {
		LastTSMS int64
		LastLag  int64
	}

	configUserState struct {
		Player  int
		Message string
		GM      configUserStateGM
	}

	configUserStateGM struct {
		Alias     string
		LastAlias string
		Vote      string
	}

	configPlayer struct {
		Transformation transformation
	}
)

func (cfg config) WithPatch(v interface{}) config {
	cfg.lock.Lock()
	defer cfg.lock.Unlock()
	originalData, _ := json.Marshal(cfg)
	patchData, _ := json.Marshal(v)
	patcher, err := patch.DecodePatch(patchData)
	if err != nil {
		return cfg
	}
	patchedData, err := patcher.Apply(originalData)
	if err != nil {
		return cfg
	}
	var patched config
	if err := json.Unmarshal(patchedData, &patched); err != nil {
		return cfg
	}
	return patched
}