Why: channels with model pricing entries but no model mapping (e.g. azcc with 3 priced claude models, no mapping) were rendering as 未配置模型 in the 'Available Channels' page. The algorithm only iterated ModelMapping and silently dropped any platform without a mapping entry. Changes: - channel.go: SupportedModels now unions mapping + pricing entries. For exact mapping src → target, pricing is looked up by target (the actually billed name), not by src. - channel_available.go: ListAvailable enriches each entry with nil pricing via PricingService.GetModelPricing (global LiteLLM fallback) so the popover always shows a price. - channel_service.go: NewChannelService takes *PricingService as 4th param. - channel_test.go: rewrote 4 tests that froze the old mapping-only semantics; added pricing-only / mapping-target / target-missing coverage.
566 lines
20 KiB
Go
566 lines
20 KiB
Go
package service
|
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|
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import (
|
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"fmt"
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"sort"
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"strings"
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"time"
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)
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|
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// BillingMode 计费模式
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type BillingMode string
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const (
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BillingModeToken BillingMode = "token" // 按 token 区间计费
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BillingModePerRequest BillingMode = "per_request" // 按次计费(支持上下文窗口分层)
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BillingModeImage BillingMode = "image" // 图片计费(当前按次,预留 token 计费)
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)
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// IsValid 检查 BillingMode 是否为合法值
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func (m BillingMode) IsValid() bool {
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switch m {
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case BillingModeToken, BillingModePerRequest, BillingModeImage, "":
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return true
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}
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return false
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}
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const (
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BillingModelSourceRequested = "requested"
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BillingModelSourceUpstream = "upstream"
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BillingModelSourceChannelMapped = "channel_mapped"
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)
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// Channel 渠道实体
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type Channel struct {
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ID int64
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Name string
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Description string
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Status string
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BillingModelSource string // "requested", "upstream", or "channel_mapped"
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RestrictModels bool // 是否限制模型(仅允许定价列表中的模型)
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Features string // 渠道特性描述(JSON 数组),用于支付页面展示
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FeaturesConfig map[string]any // 渠道功能配置(如 web search emulation)
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CreatedAt time.Time
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UpdatedAt time.Time
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// 关联的分组 ID 列表
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GroupIDs []int64
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// 模型定价列表(每条含 Platform 字段)
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ModelPricing []ChannelModelPricing
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// 渠道级模型映射(按平台分组:platform → {src→dst})
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ModelMapping map[string]map[string]string
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// 账号统计定价
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ApplyPricingToAccountStats bool // 是否应用渠道模型定价到账号统计
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AccountStatsPricingRules []AccountStatsPricingRule // 自定义账号统计定价规则(按 SortOrder 排序,先命中为准)
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}
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// AccountStatsPricingRule 账号统计定价规则
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// 每条规则包含匹配条件(分组/账号)和独立的模型定价。
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// 多条规则按 SortOrder 排序,先命中为准。
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type AccountStatsPricingRule struct {
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ID int64
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ChannelID int64
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Name string
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GroupIDs []int64
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AccountIDs []int64
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SortOrder int
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Pricing []ChannelModelPricing // 规则内的模型定价(复用现有定价结构)
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CreatedAt time.Time
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UpdatedAt time.Time
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}
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// ChannelModelPricing 渠道模型定价条目
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type ChannelModelPricing struct {
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ID int64
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ChannelID int64
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Platform string // 所属平台(anthropic/openai/gemini/...)
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Models []string // 绑定的模型列表
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BillingMode BillingMode // 计费模式
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InputPrice *float64 // 每 token 输入价格(USD)— 向后兼容 flat 定价
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OutputPrice *float64 // 每 token 输出价格(USD)
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CacheWritePrice *float64 // 缓存写入价格
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CacheReadPrice *float64 // 缓存读取价格
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ImageOutputPrice *float64 // 图片输出价格(向后兼容)
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PerRequestPrice *float64 // 默认按次计费价格(USD)
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Intervals []PricingInterval // 区间定价列表
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CreatedAt time.Time
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UpdatedAt time.Time
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}
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// PricingInterval 定价区间(token 区间 / 按次分层 / 图片分辨率分层)
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type PricingInterval struct {
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ID int64
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PricingID int64
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MinTokens int // 区间下界(含)
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MaxTokens *int // 区间上界(不含),nil = 无上限
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TierLabel string // 层级标签(按次/图片模式:1K, 2K, 4K, HD 等)
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InputPrice *float64 // token 模式:每 token 输入价
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OutputPrice *float64 // token 模式:每 token 输出价
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CacheWritePrice *float64 // token 模式:缓存写入价
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CacheReadPrice *float64 // token 模式:缓存读取价
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PerRequestPrice *float64 // 按次/图片模式:每次请求价格
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SortOrder int
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CreatedAt time.Time
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UpdatedAt time.Time
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}
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// IsActive 判断渠道是否启用
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func (c *Channel) IsActive() bool {
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return c.Status == StatusActive
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}
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// normalizeBillingModelSource 若 BillingModelSource 为空则回填默认值 ChannelMapped。
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// 作为 *Channel 的实体方法集中管理默认值,service 层只需在 Channel 进入内存
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// (缓存装填、repo 读出)时调用一次,下游读路径就无需重复兜底。
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func (c *Channel) normalizeBillingModelSource() {
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if c == nil {
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return
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}
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if c.BillingModelSource == "" {
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c.BillingModelSource = BillingModelSourceChannelMapped
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}
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}
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// GetModelPricing 根据模型名查找渠道定价,未找到返回 nil。
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// 精确匹配,大小写不敏感。返回值拷贝,不污染缓存。
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func (c *Channel) GetModelPricing(model string) *ChannelModelPricing {
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modelLower := strings.ToLower(model)
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for i := range c.ModelPricing {
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for _, m := range c.ModelPricing[i].Models {
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if strings.ToLower(m) == modelLower {
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cp := c.ModelPricing[i].Clone()
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return &cp
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}
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}
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}
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return nil
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}
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// FindMatchingInterval 在区间列表中查找匹配 totalTokens 的区间。
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// 区间为左开右闭 (min, max]:min 不含,max 包含。
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// 第一个区间 min=0 时,0 token 不匹配任何区间(回退到默认价格)。
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func FindMatchingInterval(intervals []PricingInterval, totalTokens int) *PricingInterval {
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for i := range intervals {
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iv := &intervals[i]
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if totalTokens > iv.MinTokens && (iv.MaxTokens == nil || totalTokens <= *iv.MaxTokens) {
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return iv
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}
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}
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return nil
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}
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// GetIntervalForContext 根据总 context token 数查找匹配的区间。
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func (p *ChannelModelPricing) GetIntervalForContext(totalTokens int) *PricingInterval {
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return FindMatchingInterval(p.Intervals, totalTokens)
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}
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// GetTierByLabel 根据标签查找层级(用于 per_request / image 模式)
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func (p *ChannelModelPricing) GetTierByLabel(label string) *PricingInterval {
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labelLower := strings.ToLower(label)
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for i := range p.Intervals {
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if strings.ToLower(p.Intervals[i].TierLabel) == labelLower {
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return &p.Intervals[i]
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}
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}
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return nil
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}
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// Clone 返回 ChannelModelPricing 的拷贝(切片独立,指针字段共享,调用方只读安全)
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func (p ChannelModelPricing) Clone() ChannelModelPricing {
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cp := p
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if p.Models != nil {
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cp.Models = make([]string, len(p.Models))
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copy(cp.Models, p.Models)
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}
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if p.Intervals != nil {
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cp.Intervals = make([]PricingInterval, len(p.Intervals))
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copy(cp.Intervals, p.Intervals)
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}
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return cp
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}
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// Clone 返回 Channel 的深拷贝
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func (c *Channel) Clone() *Channel {
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if c == nil {
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return nil
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}
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cp := *c
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if c.GroupIDs != nil {
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cp.GroupIDs = make([]int64, len(c.GroupIDs))
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copy(cp.GroupIDs, c.GroupIDs)
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}
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if c.ModelPricing != nil {
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cp.ModelPricing = make([]ChannelModelPricing, len(c.ModelPricing))
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for i := range c.ModelPricing {
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cp.ModelPricing[i] = c.ModelPricing[i].Clone()
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}
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}
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if c.ModelMapping != nil {
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cp.ModelMapping = make(map[string]map[string]string, len(c.ModelMapping))
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for platform, mapping := range c.ModelMapping {
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inner := make(map[string]string, len(mapping))
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for k, v := range mapping {
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inner[k] = v
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}
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cp.ModelMapping[platform] = inner
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}
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}
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if c.FeaturesConfig != nil {
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cp.FeaturesConfig = deepCopyFeaturesConfig(c.FeaturesConfig)
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}
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if c.AccountStatsPricingRules != nil {
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cp.AccountStatsPricingRules = make([]AccountStatsPricingRule, len(c.AccountStatsPricingRules))
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for i, rule := range c.AccountStatsPricingRules {
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cp.AccountStatsPricingRules[i] = rule
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if rule.GroupIDs != nil {
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cp.AccountStatsPricingRules[i].GroupIDs = make([]int64, len(rule.GroupIDs))
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copy(cp.AccountStatsPricingRules[i].GroupIDs, rule.GroupIDs)
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}
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if rule.AccountIDs != nil {
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cp.AccountStatsPricingRules[i].AccountIDs = make([]int64, len(rule.AccountIDs))
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copy(cp.AccountStatsPricingRules[i].AccountIDs, rule.AccountIDs)
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}
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if rule.Pricing != nil {
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cp.AccountStatsPricingRules[i].Pricing = make([]ChannelModelPricing, len(rule.Pricing))
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for j := range rule.Pricing {
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cp.AccountStatsPricingRules[i].Pricing[j] = rule.Pricing[j].Clone()
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}
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}
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}
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}
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return &cp
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}
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// IsWebSearchEmulationEnabled 返回该渠道是否为指定平台启用了 web search 模拟。
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func (c *Channel) IsWebSearchEmulationEnabled(platform string) bool {
|
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if c == nil || c.FeaturesConfig == nil {
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return false
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}
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wse, ok := c.FeaturesConfig[featureKeyWebSearchEmulation].(map[string]any)
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if !ok {
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return false
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}
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enabled, ok := wse[platform].(bool)
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return ok && enabled
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}
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// deepCopyFeaturesConfig creates a deep copy of FeaturesConfig to prevent cache pollution.
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func deepCopyFeaturesConfig(src map[string]any) map[string]any {
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dst := make(map[string]any, len(src))
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for k, v := range src {
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if inner, ok := v.(map[string]any); ok {
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dst[k] = deepCopyFeaturesConfig(inner)
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} else {
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dst[k] = v
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}
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}
|
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return dst
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}
|
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|
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// ValidateIntervals 校验区间列表的合法性。
|
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// 规则:MinTokens >= 0;MaxTokens 若非 nil 则 > 0 且 > MinTokens;
|
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// 所有价格字段 >= 0;区间按 MinTokens 排序后无重叠((min, max] 语义);
|
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// 无界区间(MaxTokens=nil)必须是最后一个。间隙允许(回退默认价格)。
|
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func ValidateIntervals(intervals []PricingInterval) error {
|
||
if len(intervals) == 0 {
|
||
return nil
|
||
}
|
||
sorted := make([]PricingInterval, len(intervals))
|
||
copy(sorted, intervals)
|
||
sort.Slice(sorted, func(i, j int) bool {
|
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return sorted[i].MinTokens < sorted[j].MinTokens
|
||
})
|
||
|
||
for i := range sorted {
|
||
if err := validateSingleInterval(&sorted[i], i); err != nil {
|
||
return err
|
||
}
|
||
}
|
||
return validateIntervalOverlap(sorted)
|
||
}
|
||
|
||
// validateSingleInterval 校验单个区间的字段合法性
|
||
func validateSingleInterval(iv *PricingInterval, idx int) error {
|
||
if iv.MinTokens < 0 {
|
||
return fmt.Errorf("interval #%d: min_tokens (%d) must be >= 0", idx+1, iv.MinTokens)
|
||
}
|
||
if iv.MaxTokens != nil {
|
||
if *iv.MaxTokens <= 0 {
|
||
return fmt.Errorf("interval #%d: max_tokens (%d) must be > 0", idx+1, *iv.MaxTokens)
|
||
}
|
||
if *iv.MaxTokens <= iv.MinTokens {
|
||
return fmt.Errorf("interval #%d: max_tokens (%d) must be > min_tokens (%d)",
|
||
idx+1, *iv.MaxTokens, iv.MinTokens)
|
||
}
|
||
}
|
||
return validateIntervalPrices(iv, idx)
|
||
}
|
||
|
||
// validateIntervalPrices 校验区间内所有价格字段 >= 0
|
||
func validateIntervalPrices(iv *PricingInterval, idx int) error {
|
||
prices := []struct {
|
||
name string
|
||
val *float64
|
||
}{
|
||
{"input_price", iv.InputPrice},
|
||
{"output_price", iv.OutputPrice},
|
||
{"cache_write_price", iv.CacheWritePrice},
|
||
{"cache_read_price", iv.CacheReadPrice},
|
||
{"per_request_price", iv.PerRequestPrice},
|
||
}
|
||
for _, p := range prices {
|
||
if p.val != nil && *p.val < 0 {
|
||
return fmt.Errorf("interval #%d: %s must be >= 0", idx+1, p.name)
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// validateIntervalOverlap 校验排序后的区间列表无重叠,且无界区间在最后
|
||
func validateIntervalOverlap(sorted []PricingInterval) error {
|
||
for i, iv := range sorted {
|
||
// 无界区间必须是最后一个
|
||
if iv.MaxTokens == nil && i < len(sorted)-1 {
|
||
return fmt.Errorf("interval #%d: unbounded interval (max_tokens=null) must be the last one",
|
||
i+1)
|
||
}
|
||
if i == 0 {
|
||
continue
|
||
}
|
||
prev := sorted[i-1]
|
||
// 检查重叠:前一个区间的上界 > 当前区间的下界则重叠
|
||
// (min, max] 语义:prev 覆盖 (prev.Min, prev.Max],cur 覆盖 (cur.Min, cur.Max]
|
||
if prev.MaxTokens == nil || *prev.MaxTokens > iv.MinTokens {
|
||
return fmt.Errorf("interval #%d and #%d overlap: prev max=%s > cur min=%d",
|
||
i, i+1, formatMaxTokensLabel(prev.MaxTokens), iv.MinTokens)
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
func formatMaxTokensLabel(max *int) string {
|
||
if max == nil {
|
||
return "∞"
|
||
}
|
||
return fmt.Sprintf("%d", *max)
|
||
}
|
||
|
||
// ChannelUsageFields 渠道相关的使用记录字段(嵌入到各平台的 RecordUsageInput 中)
|
||
type ChannelUsageFields struct {
|
||
ChannelID int64 // 渠道 ID(0 = 无渠道)
|
||
OriginalModel string // 用户原始请求模型(渠道映射前)
|
||
ChannelMappedModel string // 渠道映射后的模型名(无映射时等于 OriginalModel)
|
||
BillingModelSource string // 计费模型来源:"requested" / "upstream" / "channel_mapped"
|
||
ModelMappingChain string // 映射链描述,如 "a→b→c"
|
||
}
|
||
|
||
// SupportedModel 渠道的一个支持模型条目(无通配符、可直接展示给用户)
|
||
type SupportedModel struct {
|
||
Name string // 用户侧模型名
|
||
Platform string // 所属平台
|
||
Pricing *ChannelModelPricing // 定价详情(nil 表示未配置定价)
|
||
}
|
||
|
||
// wildcardSuffix 是模型模式中的通配符后缀标记(仅支持尾部匹配)。
|
||
const wildcardSuffix = "*"
|
||
|
||
// splitWildcardSuffix 将模型模式拆分为 (prefix, isWildcard)。
|
||
//
|
||
// "claude-opus-*" → ("claude-opus-", true)
|
||
// "claude-opus-4" → ("claude-opus-4", false)
|
||
// "*" → ("", true)
|
||
//
|
||
// 注意:返回的 prefix 保持原始大小写,由调用方按需 ToLower。
|
||
func splitWildcardSuffix(pattern string) (prefix string, isWildcard bool) {
|
||
if strings.HasSuffix(pattern, wildcardSuffix) {
|
||
return strings.TrimSuffix(pattern, wildcardSuffix), true
|
||
}
|
||
return pattern, false
|
||
}
|
||
|
||
// GetModelPricingByPlatform 在指定平台下查找精确模型的定价,未找到返回 nil。
|
||
// 与 GetModelPricing 的区别:按 Platform 隔离,避免跨平台同名模型误匹配。
|
||
func (c *Channel) GetModelPricingByPlatform(platform, model string) *ChannelModelPricing {
|
||
if c == nil {
|
||
return nil
|
||
}
|
||
modelLower := strings.ToLower(model)
|
||
for i := range c.ModelPricing {
|
||
if c.ModelPricing[i].Platform != platform {
|
||
continue
|
||
}
|
||
for _, m := range c.ModelPricing[i].Models {
|
||
if strings.ToLower(m) == modelLower {
|
||
cp := c.ModelPricing[i].Clone()
|
||
return &cp
|
||
}
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// platformPricingIndex 是单个平台下定价信息的复合索引。
|
||
// 一次扫描即可同时支持精确查找(exact 分支)与有序遍历(wildcard 分支),
|
||
// 避免 SupportedModels 对每个平台重复扫描定价列表。
|
||
//
|
||
// byLower 与 names/originalCase 共享同一套去重规则:以 lower-case 模型名为 key,
|
||
// 首个命中保留其原始大小写。names 维持按定价行扫描顺序的稳定迭代。
|
||
type platformPricingIndex struct {
|
||
byLower map[string]*ChannelModelPricing // lowercased model name → pricing (Clone'd)
|
||
originalCase map[string]string // lowercased model name → original-case model name
|
||
names []string // priced model names in their ORIGINAL case, insertion-ordered, deduped case-insensitively (first wins)
|
||
}
|
||
|
||
// buildPricingIndex 对渠道的定价列表做一次扫描,按 platform 聚合为查找索引。
|
||
// 索引值是定价条目的 Clone 指针,调用方可安全按需返回副本而不污染缓存。
|
||
// 通配符后缀条目(如 "claude-*")不被索引(它们是模式,不是具体模型名)。
|
||
// 同一平台中以大小写不敏感方式去重,先出现者保留原始大小写。
|
||
func buildPricingIndex(pricings []ChannelModelPricing) map[string]*platformPricingIndex {
|
||
idx := make(map[string]*platformPricingIndex)
|
||
for i := range pricings {
|
||
p := pricings[i]
|
||
pidx, ok := idx[p.Platform]
|
||
if !ok {
|
||
pidx = &platformPricingIndex{
|
||
byLower: make(map[string]*ChannelModelPricing),
|
||
originalCase: make(map[string]string),
|
||
names: make([]string, 0),
|
||
}
|
||
idx[p.Platform] = pidx
|
||
}
|
||
for _, m := range p.Models {
|
||
if _, wild := splitWildcardSuffix(m); wild {
|
||
continue
|
||
}
|
||
lower := strings.ToLower(m)
|
||
if _, exists := pidx.byLower[lower]; exists {
|
||
continue // 首个命中胜出(case-insensitive 去重后第一个定价 / 第一个原始大小写)
|
||
}
|
||
cp := pricings[i].Clone()
|
||
pidx.byLower[lower] = &cp
|
||
pidx.originalCase[lower] = m
|
||
pidx.names = append(pidx.names, m)
|
||
}
|
||
}
|
||
return idx
|
||
}
|
||
|
||
// SupportedModels 计算渠道的支持模型列表,结果保证不含通配符。
|
||
//
|
||
// 算法(mapping ∪ pricing 并联):
|
||
//
|
||
// - Pass A(mapping):遍历 ModelMapping
|
||
// - 精确 src → target:显示名 = src(用户视角),定价用 target 在同 platform 定价里查
|
||
// (mapping 改写后实际计费的是 target;这是用户感知的"实际花费")。
|
||
// target 为空或为通配符时退化为按 src 自查。
|
||
// - 通配符 src(如 "claude-3-*"):用同 platform 定价里前缀匹配的模型作为候选展开,
|
||
// 每个候选用自身定价(通配符场景一般是 passthrough,target 通常也是通配符)。
|
||
// - "*" 单独 mapping key 走通配符分支(前缀为空 → 全展开)。
|
||
// - Pass B(pricing-only):遍历 ModelPricing 中所有非通配符模型,对未在 Pass A 添加过的
|
||
// 补齐——显示名 = 定价模型名,定价 = 自身(这是关键修复:定价存在即代表渠道支持该模型,
|
||
// 即使没配映射)。
|
||
//
|
||
// 显示名命中定价时使用**定价的原始大小写**(定价是模型身份的事实来源)。
|
||
// 按 (Platform, Name) 稳定排序,按 (Platform, lowercase(Name)) 去重,先到者胜出。
|
||
//
|
||
// 注意:定价仅在 channel.ModelPricing 内查找——全局 LiteLLM 回落由调用方
|
||
// (`ChannelService.ListAvailable`)在合成展示数据时叠加。
|
||
func (c *Channel) SupportedModels() []SupportedModel {
|
||
if c == nil {
|
||
return nil
|
||
}
|
||
if len(c.ModelMapping) == 0 && len(c.ModelPricing) == 0 {
|
||
return nil
|
||
}
|
||
|
||
idx := buildPricingIndex(c.ModelPricing)
|
||
|
||
type dedupKey struct {
|
||
platform string
|
||
name string
|
||
}
|
||
seen := make(map[dedupKey]struct{})
|
||
result := make([]SupportedModel, 0)
|
||
|
||
// lookup 在 platform pricing index 中按精确名查定价,命中时返回定价大小写。
|
||
lookup := func(pidx *platformPricingIndex, name string) (display string, pricing *ChannelModelPricing) {
|
||
if pidx == nil || name == "" {
|
||
return name, nil
|
||
}
|
||
lower := strings.ToLower(name)
|
||
if p, ok := pidx.byLower[lower]; ok {
|
||
return pidx.originalCase[lower], p
|
||
}
|
||
return name, nil
|
||
}
|
||
|
||
add := func(platform, displayName string, pricing *ChannelModelPricing) {
|
||
key := dedupKey{platform: platform, name: strings.ToLower(displayName)}
|
||
if _, ok := seen[key]; ok {
|
||
return
|
||
}
|
||
seen[key] = struct{}{}
|
||
result = append(result, SupportedModel{
|
||
Name: displayName,
|
||
Platform: platform,
|
||
Pricing: pricing,
|
||
})
|
||
}
|
||
|
||
// Pass A:从 mapping 展开
|
||
for platform, mapping := range c.ModelMapping {
|
||
if len(mapping) == 0 {
|
||
continue
|
||
}
|
||
pidx := idx[platform]
|
||
for src, target := range mapping {
|
||
prefix, isWild := splitWildcardSuffix(src)
|
||
if isWild {
|
||
if pidx == nil {
|
||
continue
|
||
}
|
||
prefixLower := strings.ToLower(prefix)
|
||
for _, candidate := range pidx.names {
|
||
if strings.HasPrefix(strings.ToLower(candidate), prefixLower) {
|
||
display, pricing := lookup(pidx, candidate)
|
||
add(platform, display, pricing)
|
||
}
|
||
}
|
||
continue
|
||
}
|
||
// 精确 mapping:定价按 target 查;target 缺失/通配则退化按 src 查
|
||
pricingKey := target
|
||
if pricingKey == "" {
|
||
pricingKey = src
|
||
}
|
||
if _, targetWild := splitWildcardSuffix(pricingKey); targetWild {
|
||
pricingKey = src
|
||
}
|
||
_, pricing := lookup(pidx, pricingKey)
|
||
// 显示名优先用 src 在定价里的原始大小写(若 src 本身是个定价模型名)
|
||
displayName, _ := lookup(pidx, src)
|
||
add(platform, displayName, pricing)
|
||
}
|
||
}
|
||
|
||
// Pass B:从 pricing 补齐 mapping 未覆盖的具体模型(修复"定价存在但没配映射 → 不显示")
|
||
for platform, pidx := range idx {
|
||
for _, name := range pidx.names {
|
||
display, pricing := lookup(pidx, name)
|
||
add(platform, display, pricing)
|
||
}
|
||
}
|
||
|
||
sort.SliceStable(result, func(i, j int) bool {
|
||
if result[i].Platform != result[j].Platform {
|
||
return result[i].Platform < result[j].Platform
|
||
}
|
||
return result[i].Name < result[j].Name
|
||
})
|
||
return result
|
||
}
|