package service

import (
	"encoding/json"
	"strconv"
	"strings"
	"time"

	"affiliate_dash/internal/pkg/timeutil"
)

// buildShipNotifyResultData 把推送结果与游戏字段合并进 ResultData JSON。
func buildShipNotifyResultData(existing string, in ShipNotifyInput, shippedAt *time.Time) string {
	m := map[string]interface{}{}
	if existing != "" && json.Valid([]byte(existing)) {
		_ = json.Unmarshal([]byte(existing), &m)
	}
	m["ship_status"] = in.ShipStatus
	if in.ProviderOrderNo != "" {
		m["provider_order_no"] = in.ProviderOrderNo
	}
	if in.ShipStatus == "success" {
		delete(m, "fail_reason")
	} else if in.FailReason != "" {
		m["fail_reason"] = in.FailReason
	}
	if shippedAt != nil {
		m["shipped_at"] = timeutil.FormatAPITime(*shippedAt)
	}
	if in.GameChannel != nil {
		m["game_channel"] = *in.GameChannel
	}
	if in.GameUID != nil {
		m["game_uid"] = *in.GameUID
	}
	if in.RoleName != nil {
		m["role_name"] = *in.RoleName
	}
	if in.PayScore != nil {
		m["pay_score"] = *in.PayScore
	}
	raw, err := json.Marshal(m)
	if err != nil {
		return existing
	}
	return string(raw)
}

// mergeResultData 保留已有 JSON 字段，仅覆盖或新增 patch 中的字段，避免各发货阶段互相清空上下文。
func mergeResultData(existing string, patch map[string]interface{}) string {
	if len(patch) == 0 {
		return existing
	}
	m := map[string]interface{}{}
	if existing != "" && json.Valid([]byte(existing)) {
		_ = json.Unmarshal([]byte(existing), &m)
	}
	for k, v := range patch {
		m[k] = v
	}
	raw, err := json.Marshal(m)
	if err != nil {
		return existing
	}
	return string(raw)
}

func resultDataMap(raw string) map[string]interface{} {
	m := map[string]interface{}{}
	if raw != "" && json.Valid([]byte(raw)) {
		_ = json.Unmarshal([]byte(raw), &m)
	}
	return m
}

// requestDataMap 解析下单透传的 data（RequestData），非法或为空时返回空 map。
func requestDataMap(raw string) map[string]interface{} {
	m := map[string]interface{}{}
	if raw != "" && json.Valid([]byte(raw)) {
		_ = json.Unmarshal([]byte(raw), &m)
	}
	return m
}

// requestDataString 读取下单透传 data 中的字符串字段。
func requestDataString(raw, key string) string {
	if v, ok := requestDataMap(raw)[key].(string); ok {
		return strings.TrimSpace(v)
	}
	return ""
}

func resultDataString(raw, key string) string {
	if v, ok := resultDataMap(raw)[key].(string); ok {
		return v
	}
	return ""
}

func resultDataNumber(raw, key string) int64 {
	switch v := resultDataMap(raw)[key].(type) {
	case float64:
		return int64(v)
	case int64:
		return v
	case int:
		return int64(v)
	case string:
		if n, err := strconv.ParseInt(v, 10, 64); err == nil {
			return n
		}
	}
	return 0
}

// extractGameFields 从 JSON 文本中还原游戏相关字段（仅填充当前为空的字段）。
func extractGameFields(raw string, out *OpenOrderQuery) {
	if raw == "" || !json.Valid([]byte(raw)) {
		return
	}
	var m map[string]interface{}
	if err := json.Unmarshal([]byte(raw), &m); err != nil {
		return
	}
	if out.GameChannel == "" {
		if v, ok := m["game_channel"].(string); ok {
			out.GameChannel = v
		}
	}
	if out.GameUID == "" {
		if v, ok := m["game_uid"].(string); ok {
			out.GameUID = v
		}
	}
	if out.RoleName == "" {
		if v, ok := m["role_name"].(string); ok {
			out.RoleName = v
		}
	}
	if out.PayScore == 0 {
		if v, ok := toInt(m["pay_score"]); ok {
			out.PayScore = v
		}
	}
}

func toInt(v interface{}) (int, bool) {
	switch n := v.(type) {
	case float64:
		return int(n), true
	case int:
		return n, true
	case int64:
		return int(n), true
	}
	return 0, false
}