From 0f8b9711eddb189bb3d2eb855b5c99d46615b3a7 Mon Sep 17 00:00:00 2001
From: qhd <1766646056@qq.com>
Date: Fri, 28 Aug 2026 17:27:31 +0800
Subject: [PATCH] =?UTF-8?q?feat(pricing):=20=E6=89=A9=E5=B1=95=20charge=5F?=
 =?UTF-8?q?mode=20=E6=9E=9A=E4=B8=BE=EF=BC=88token/=E5=8D=95=E4=BD=8D/per?=
 =?UTF-8?q?=5Fperiod=EF=BC=89+=20subject=20=E5=B8=B8=E9=87=8F?=
MIME-Version: 1.0
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Co-Authored-By: Claude <noreply@anthropic.com>
---
 consts/pricing/charge_mode.go | 26 ++++++++++++++++++++++++
 consts/pricing/subject.go     | 38 +++++++++++++++++++++++++++++++++++
 2 files changed, 64 insertions(+)
 create mode 100644 consts/pricing/charge_mode.go
 create mode 100644 consts/pricing/subject.go

diff --git a/consts/pricing/charge_mode.go b/consts/pricing/charge_mode.go
new file mode 100644
index 0000000..75fcf36
--- /dev/null
+++ b/consts/pricing/charge_mode.go
@@ -0,0 +1,26 @@
+package pricing
+
+// ChargeMode 计费方式（全 DB 配置，代码不写死金额；新增方式在 charge_calc 计算器注册表加一项）
+type ChargeMode string
+
+const (
+	ChargeModePerItem   ChargeMode = "per_item"   // 按条：档位开放、上不封顶（rules.tiers + overflow）
+	ChargeModePerSecond ChargeMode = "per_second" // 按秒（workflow：整秒向上取整；model：精确秒）
+	ChargeModePerToken  ChargeMode = "per_token"  // 按token（workflow 结算时按各模型 subject 实时价）
+	ChargeModePer1K     ChargeMode = "per_1K"     // 每千token（模型 token 计费）
+	ChargeModePer1M     ChargeMode = "per_1M"     // 每百万token（模型 token 计费）
+	ChargeModePer1      ChargeMode = "per_1"      // 每个/每张图（图片按张数）
+	ChargeModePerMinute ChargeMode = "per_minute" // 每分钟（音频时长）
+	ChargeModePerHour   ChargeMode = "per_hour"   // 每小时（音频时长）
+	ChargeModePerChar   ChargeMode = "per_char"   // 每字（音频按字数）
+	ChargeModePerPeriod ChargeMode = "per_period" // 周期订阅（business 按年）
+)
+
+// ModelUnitSet model subject 允许的计费单位（spec §4.2）
+var ModelUnitSet = map[ChargeMode]bool{
+	ChargeModePer1K: true, ChargeModePer1M: true, ChargeModePer1: true,
+	ChargeModePerSecond: true, ChargeModePerMinute: true, ChargeModePerHour: true, ChargeModePerChar: true,
+}
+
+// PeriodSet 周期允许集合（per_period，扩月/季只加值）
+var PeriodSet = map[string]bool{"year": true}
diff --git a/consts/pricing/subject.go b/consts/pricing/subject.go
new file mode 100644
index 0000000..4f20575
--- /dev/null
+++ b/consts/pricing/subject.go
@@ -0,0 +1,38 @@
+package pricing
+
+// SubjectType 计价对象类型（固定枚举 = pricing_config 唯一键第一部分）
+type SubjectType string
+
+const (
+	SubjectTypeWorkflow SubjectType = "workflow" // 工作流（固定单主体）
+	SubjectTypeModel    SubjectType = "model"    // 模型（model-gateway 系统模型，subject_id=模型ID）
+	SubjectTypeBusiness SubjectType = "business" // 业务模块（固定写死列表）
+)
+
+// WorkflowSubjectID 工作流固定 subject_id
+const WorkflowSubjectID = "workflow"
+
+// BusinessSubject 业务模块枚举项（固定写死，新增业务模块改这里）
+type BusinessSubject struct {
+	SubjectID   string       `json:"subjectId"`
+	Name        string       `json:"name"`
+	ChargeModes []ChargeMode `json:"chargeModes"`
+}
+
+// BusinessSubjects 业务模块固定列表（spec §7：与「固定枚举」一致）
+var BusinessSubjects = []BusinessSubject{
+	{SubjectID: "ai_customer_service", Name: "AI客服", ChargeModes: []ChargeMode{ChargeModePerPeriod}},
+}
+
+// ModelTypeCode 模型类型编码（透传 model-gateway 枚举，管理端按此分组渲染编辑器）
+type ModelTypeCode = int
+
+const (
+	ModelTypeReasoning ModelTypeCode = 100 // 推理
+	ModelTypeImage     ModelTypeCode = 200 // 图片
+	ModelTypeAudio     ModelTypeCode = 300 // 音频
+	ModelTypeVector    ModelTypeCode = 400 // 向量
+	ModelTypeOmni      ModelTypeCode = 500 // 多模态
+	ModelTypeVideo     ModelTypeCode = 600 // 视频
+	ModelTypeCode2     ModelTypeCode = 700 // 代码
+)