package versionSer

import (
	"context"
	"encoding/json"
	"stat/common/log"
	"stat/common/utils"
	"stat/models/downloadCpc"
	"stat/models/versionMod"
	"stat/service/cacheSer"
	"stat/statg"
	"strings"
	"time"
)

// IosMobileconfigCfg iOS mobileconfig 生成所需的应用级配置
type IosMobileconfigCfg struct {
	AppId       int32
	IosDownSuff string // 下载文件名(如 madou.mobileconfig)
	H5Origin    string
	H5Target    string
	H5Config    string
}

// ParseChannel 解析 channel(json 字符串)为 pc/dc/ch;非法 JSON 时返回空字符串,dc 走 RepairDC
func ParseChannel(channel string) (pc, dc, ch string) {
	if channel == "" {
		return
	}
	var p ChannelParams
	_ = json.Unmarshal([]byte(channel), &p)
	dc = utils.RepairDC(p.DC)
	pc = p.PC
	ch = p.CH
	return
}

// RecordCpcDownload 记录 cpc 下载到 landingpage_cpc 表(走异步 writer);相同 IP 1 小时内只记一次
func RecordCpcDownload(ctx context.Context, isIos bool, appId int32, channel, ip, userAgent string) {
	if ip == "" {
		return
	}
	pc, dc, ch := ParseChannel(channel)
	sysType := "android"
	if isIos {
		sysType = "ios"
	}
	devType := ""
	if strings.Contains(userAgent, "iPhone") {
		devType = "iphone"
	} else if strings.Contains(userAgent, "iPad") {
		devType = "ipad"
	} else if strings.Contains(userAgent, "Android") {
		devType = "android"
	}
	info := &downloadCpc.DownloadCpc{
		AppId:     appId,
		PC:        pc,
		DC:        dc,
		CH:        ch,
		IP:        ip,
		DevType:   devType,
		SysType:   sysType,
		PeerIP:    ip,
		CreatedAt: time.Now(),
	}
	if landPageVisit.TryLock(ip, time.Now().Add(landPageVisitIpTimeout)) {
		cacheSer.Writers.LandPageVisitWriter.Add(info)
	}
}

// LatestAndroidDownloadUrl 取应用最新 Android 版本的下载链接(第一个 Link),没有返回空字符串
func LatestAndroidDownloadUrl(appId int32) string {
	ctx := context.Background()
	data, err := versionMod.ButtonClick(ctx, appId, "android", 0)
	if err != nil || data == nil {
		log.Warn("LatestAndroidDownloadUrl ButtonClick failed", log.E(err), log.Any("appId", appId))
		return ""
	}
	if len(data.Link) == 0 {
		return ""
	}
	return data.Link[0]
}

// IosMobileconfigByAppId 取应用的 iOS mobileconfig 配置;endpoint 未配置 H5 三件套则返回 nil
func IosMobileconfigByAppId(appId int32) *IosMobileconfigCfg {
	endpoint := statg.GlobalAppIdEndpoints[appId]
	if endpoint == nil {
		return nil
	}
	if endpoint.H5Origin == "" || endpoint.H5Target == "" || endpoint.H5Config == "" {
		return nil
	}
	return &IosMobileconfigCfg{
		AppId:       appId,
		IosDownSuff: endpoint.H5Config,
		H5Origin:    endpoint.H5Origin,
		H5Target:    endpoint.H5Target,
		H5Config:    endpoint.H5Config,
	}
}

// BuildMobileconfig 用 dc/pc 生成 mobileconfig 字节流和文件名
func BuildMobileconfig(cfg *IosMobileconfigCfg, dc, pc string) ([]byte, string) {
	if cfg == nil {
		return nil, ""
	}
	return GenerateConfigFile(cfg.H5Origin, cfg.H5Target, cfg.H5Config, dc, pc)
}