Files
sub2api/backend/internal/service/channel_available.go
erio 365ef1fdf7 refactor(channels): consolidate pricing index, tighten types, polish DTOs
Follow-up to the available-channels review pass. No behavior change for
end users; tightens internals based on three independent code reviews.

Backend
- service/channel.go: collapse buildPricingLookup + pricedNamesFor
  into a single platformPricingIndex (byLower + originalCase + ordered
  names), built once per SupportedModels call. Fixes a casing-
  consistency bug where the same logical model appeared with mapping
  case in the exact branch but pricing case in the wildcard branch —
  pricing's original case now wins everywhere.
- service/channel.go: doc that a mapping key of just "*" expands to
  every priced model on the platform (intentional "passthrough all").
- service/channel_available.go: normalize empty BillingModelSource to
  channel_mapped at construction time, removing the same fallback
  duplicated in the admin DTO mapper and the admin Vue template.
- handler/admin/available_channel_handler.go: unexport
  availableChannelToAdminResponse (same-package usage only); mapper
  is now a pure passthrough.
- handler/available_channel_handler.go: drop the middleware2 alias
  (no name collision in this file).

Frontend
- utils/pricing.ts: extract formatScaled, used by SupportedModelChip
  and PricingRow.
- api/admin/channels.ts: re-export BillingMode from constants/channel;
  tighten Channel.status / billing_model_source to ChannelStatus /
  BillingModelSource (and same for AvailableChannel).
- components/channels/AvailableChannelsTable.vue: drop dead
  withDefaults wrapper (loading is required, both call sites pass it).
- views/admin/AvailableChannelsView.vue: drop the redundant
  || BILLING_MODEL_SOURCE_CHANNEL_MAPPED fallback (now applied in
  service layer); remove unused import.
- i18n zh + en: delete unused tierLabel and tokenRange keys from
  both availableChannels.pricing and admin.availableChannels.pricing.

Tests
- New: SupportedModels_ExactKeyUsesPricedCaseWhenAvailable locks the
  pricing-case-wins rule.
- New: SupportedModels_AsteriskOnlyMappingExpandsAllPriced documents
  the "*" expansion rule.
- Admin handler: existing tests adjusted to pass an explicit
  BillingModelSource (default-fill is now exercised by service tests).
2026-04-21 01:05:14 +08:00

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package service
import (
"context"
"fmt"
"sort"
"strings"
)
// AvailableGroupRef 渠道视图中关联分组的简要信息。
type AvailableGroupRef struct {
ID int64
Name string
Platform string
}
// AvailableChannel 可用渠道视图:用于「可用渠道」页面展示渠道基础信息 +
// 关联的分组 + 推导出的支持模型列表(无通配符)。
type AvailableChannel struct {
ID int64
Name string
Description string
Status string
BillingModelSource string
RestrictModels bool
Groups []AvailableGroupRef
SupportedModels []SupportedModel
}
// ListAvailable 返回所有渠道的可用视图:每个渠道附带关联分组信息与支持模型列表。
//
// 支持模型通过 (*Channel).SupportedModels() 计算得到(见 channel.go
// 关联分组信息通过 groupRepo.ListActive 查询后按 ID 映射;渠道 GroupIDs 中未在活跃列表中
// 的分组(已停用或删除)会被忽略。
func (s *ChannelService) ListAvailable(ctx context.Context) ([]AvailableChannel, error) {
channels, err := s.repo.ListAll(ctx)
if err != nil {
return nil, fmt.Errorf("list channels: %w", err)
}
groupByID := make(map[int64]AvailableGroupRef)
if s.groupRepo != nil {
groups, err := s.groupRepo.ListActive(ctx)
if err != nil {
return nil, fmt.Errorf("list active groups: %w", err)
}
for i := range groups {
g := groups[i]
groupByID[g.ID] = AvailableGroupRef{
ID: g.ID,
Name: g.Name,
Platform: g.Platform,
}
}
}
out := make([]AvailableChannel, 0, len(channels))
for i := range channels {
ch := &channels[i]
groups := make([]AvailableGroupRef, 0, len(ch.GroupIDs))
for _, gid := range ch.GroupIDs {
if ref, ok := groupByID[gid]; ok {
groups = append(groups, ref)
}
}
sort.Slice(groups, func(i, j int) bool { return groups[i].Name < groups[j].Name })
billingSource := ch.BillingModelSource
if billingSource == "" {
billingSource = BillingModelSourceChannelMapped
}
out = append(out, AvailableChannel{
ID: ch.ID,
Name: ch.Name,
Description: ch.Description,
Status: ch.Status,
BillingModelSource: billingSource,
RestrictModels: ch.RestrictModels,
Groups: groups,
SupportedModels: ch.SupportedModels(),
})
}
sort.SliceStable(out, func(i, j int) bool {
return strings.ToLower(out[i].Name) < strings.ToLower(out[j].Name)
})
return out, nil
}