package req

import (
	"reflect"

	"git.fsdpf.net/go/reflux/valuex"
	"github.com/samber/lo"
	"github.com/spf13/cast"
	"github.com/tidwall/gjson"
	"github.com/tidwall/sjson"
)

type GParams = GlobalParams

// GlobalParams 为全局参数访问与操作接口
type GlobalParams interface {
	UserAccessor

	Session() string

	// 通过路径获取值
	Get(path string) GlobalParams
	// 路径包裹
	Wrapped(p string) GlobalParams
	// 追加到新 json
	AppendTo(root, p string) GlobalParams
	// 通过路径设置参数
	Set(p string, v any) bool
	// 通过路径设置原始参数
	SetValue(p string, v string) bool
	// 删除路径参数
	Delete(p string) bool
	// 转数组 GlobalParams
	Array() []GlobalParams
	// 判断内容是否存在
	Exists() bool
}

type gparams struct {
	session string
	user    *User
	gjson   gjson.Result
}

// 获取用户信息
func (this gparams) Session() string {
	return this.session
}

// 获取用户信息
func (this gparams) User() User {
	return *this.user
}

// 获取指定路径的 value
func (this gparams) Get(path string) GlobalParams {
	return &gparams{
		user:    this.user,
		session: this.session,
		gjson:   this.gjson.Get(path),
	}
}

func (this gparams) Array() []GlobalParams {
	return lo.Map(this.gjson.Array(), func(item gjson.Result, _ int) GlobalParams {
		return &gparams{user: this.user, gjson: item, session: this.session}
	})
}

func (this gparams) Lookup(path string) (valuex.Accessor, bool) {
	v := this.gjson.Get(path)
	if v.Exists() {
		return this.Get(path), true
	}
	return valuex.Nil, false
}

func (this gparams) MustLookup(path string) valuex.Accessor {
	if accessor, ok := this.Lookup(path); ok {
		return accessor
	}
	return valuex.Nil
}

func (this gparams) Any() any {
	return this.gjson.Value()
}

func (this gparams) Ptr() any {
	return nil
}

func (this gparams) Raw() reflect.Value {
	return reflect.ValueOf(this.gjson)
}

func (this gparams) Value() string {
	return this.gjson.Raw
}

// 设置json值
func (this *gparams) Set(p string, v any) bool {
	if s, err := sjson.Set(this.Value(), p, v); err != nil {
		return false
	} else {
		this.gjson = gjson.Parse(s)
	}
	return true
}

// 设置json原始值
func (this *gparams) SetValue(p, v string) bool {
	if s, err := sjson.SetRaw(this.Value(), p, v); err != nil {
		return false
	} else {
		this.gjson = gjson.Parse(s)
	}
	return true
}

// 删除路径内容
func (this *gparams) Delete(p string) bool {
	if s, err := sjson.Delete(this.Value(), p); err != nil {
		return false
	} else {
		this.gjson = gjson.Parse(s)
	}
	return true
}

// 路径包裹
func (this *gparams) Wrapped(p string) GlobalParams {
	return this.AppendTo("", p)
}

// 包裹内容
func (this *gparams) AppendTo(root, p string) GlobalParams {
	if root != "" && !gjson.Valid(root) {
		root = ""
	}

	json := lo.Must(sjson.SetRaw(root, p, this.Value()))

	return &gparams{
		user:    this.user,
		session: this.session,
		gjson:   gjson.Parse(json),
	}
}

// 判断值是否存在
func (this gparams) Exists() bool {
	return this.gjson.Exists()
}

// to Bool
func (this gparams) Bool() bool {
	return cast.ToBool(this.Any())
}

// to float64
func (this gparams) Float64() float64 {
	return cast.ToFloat64(this.Any())
}

// to float32
func (this gparams) Float32() float32 {
	return cast.ToFloat32(this.Any())
}

// to int64
func (this gparams) Int64() int64 {
	return cast.ToInt64(this.Any())
}

// to int32
func (this gparams) Int32() int32 {
	return cast.ToInt32(this.Any())
}

// to int16
func (this gparams) Int16() int16 {
	return cast.ToInt16(this.Any())
}

// to int8
func (this gparams) Int8() int8 {
	return cast.ToInt8(this.Any())
}

// to int
func (this gparams) Int() int {
	return cast.ToInt(this.Any())
}

// to uint
func (this gparams) Uint() uint {
	return cast.ToUint(this.Any())
}

// to uint64
func (this gparams) Uint64() uint64 {
	return cast.ToUint64(this.Any())
}

// to uint32
func (this gparams) Uint32() uint32 {
	return cast.ToUint32(this.Any())
}

// to uint16
func (this gparams) Uint16() uint16 {
	return cast.ToUint16(this.Any())
}

// to uint8
func (this gparams) Uint8() uint8 {
	return cast.ToUint8(this.Any())
}

// to string
func (this gparams) String() string {
	return cast.ToString(this.Any())
}

// to map[string]string
func (this gparams) StringMapString() map[string]string {
	return cast.ToStringMapString(this.Any())
}

// to map[string][]string
func (this gparams) StringMapStringSlice() map[string][]string {
	return cast.ToStringMapStringSlice(this.Any())
}

// to map[string]bool
func (this gparams) StringMapBool() map[string]bool {
	return cast.ToStringMapBool(this.Any())
}

// to map[string]int
func (this gparams) StringMapInt() map[string]int {
	return cast.ToStringMapInt(this.Any())
}

// to map[string]int64
func (this gparams) StringMapInt64() map[string]int64 {
	return cast.ToStringMapInt64(this.Any())
}

// to map[string]any
func (this gparams) StringMap() map[string]any {
	return cast.ToStringMap(this.Any())
}

// to []any
func (this gparams) Slice() []any {
	return cast.ToSlice(this.Any())
}

// to []bool
func (this gparams) BoolSlice() []bool {
	return cast.ToBoolSlice(this.Any())
}

// to []string
func (this gparams) StringSlice() []string {
	return cast.ToStringSlice(this.Any())
}

// to []int
func (this gparams) IntSlice() []int {
	return cast.ToIntSlice(this.Any())
}

// NewGlobalParams 创建一个新的 GlobalParams 实例
// data 为 JSON 字符串, user 为当前用户
// 可选的 opts 用于设置会话等附加信息
func NewGlobalParams(data string, user User, opts ...gParamsOpt) GlobalParams {
	g := &gparams{user: &user, gjson: gjson.Parse(data)}
	for _, opt := range opts {
		opt(g)
	}
	return g
}