//go:build unit

package service

import (
	"context"
	"testing"

	"github.com/Wei-Shaw/sub2api/internal/pkg/ctxkey"
	"github.com/stretchr/testify/require"
)

func TestSelectAccountForModelWithExclusions_UsesFallbackGroupForChannelRestriction(t *testing.T) {
	t.Parallel()

	groupID := int64(10)
	fallbackID := int64(11)
	ch := Channel{
		ID:             1,
		Status:         StatusActive,
		GroupIDs:       []int64{fallbackID},
		RestrictModels: true,
		ModelPricing: []ChannelModelPricing{
			{Platform: PlatformAnthropic, Models: []string{"claude-sonnet-4-6"}},
		},
	}
	channelSvc := newTestChannelService(makeStandardRepo(ch, map[int64]string{
		fallbackID: PlatformAnthropic,
	}))
	accountRepo := &mockAccountRepoForPlatform{
		accounts: []Account{
			{ID: 1, Platform: PlatformAnthropic, Priority: 1, Status: StatusActive, Schedulable: true},
		},
		accountsByID: map[int64]*Account{},
	}
	for i := range accountRepo.accounts {
		accountRepo.accountsByID[accountRepo.accounts[i].ID] = &accountRepo.accounts[i]
	}
	groupRepo := &mockGroupRepoForGateway{
		groups: map[int64]*Group{
			groupID: {
				ID:              groupID,
				Platform:        PlatformAnthropic,
				Status:          StatusActive,
				ClaudeCodeOnly:  true,
				FallbackGroupID: &fallbackID,
				Hydrated:        true,
			},
			fallbackID: {
				ID:       fallbackID,
				Platform: PlatformAnthropic,
				Status:   StatusActive,
				Hydrated: true,
			},
		},
	}

	svc := &GatewayService{
		accountRepo:    accountRepo,
		groupRepo:      groupRepo,
		channelService: channelSvc,
		cfg:            testConfig(),
	}

	ctx := context.WithValue(context.Background(), ctxkey.Group, groupRepo.groups[groupID])
	account, err := svc.SelectAccountForModelWithExclusions(ctx, &groupID, "", "claude-sonnet-4-6", nil)
	require.NoError(t, err)
	require.NotNil(t, account)
	require.Equal(t, int64(1), account.ID)
}

func TestSelectAccountWithLoadAwareness_UsesFallbackGroupForChannelRestriction(t *testing.T) {
	t.Parallel()

	groupID := int64(10)
	fallbackID := int64(11)
	ch := Channel{
		ID:             1,
		Status:         StatusActive,
		GroupIDs:       []int64{fallbackID},
		RestrictModels: true,
		ModelPricing: []ChannelModelPricing{
			{Platform: PlatformAnthropic, Models: []string{"claude-sonnet-4-6"}},
		},
	}
	channelSvc := newTestChannelService(makeStandardRepo(ch, map[int64]string{
		fallbackID: PlatformAnthropic,
	}))
	accountRepo := &mockAccountRepoForPlatform{
		accounts: []Account{
			{ID: 1, Platform: PlatformAnthropic, Priority: 1, Status: StatusActive, Schedulable: true},
		},
		accountsByID: map[int64]*Account{},
	}
	for i := range accountRepo.accounts {
		accountRepo.accountsByID[accountRepo.accounts[i].ID] = &accountRepo.accounts[i]
	}
	groupRepo := &mockGroupRepoForGateway{
		groups: map[int64]*Group{
			groupID: {
				ID:              groupID,
				Platform:        PlatformAnthropic,
				Status:          StatusActive,
				ClaudeCodeOnly:  true,
				FallbackGroupID: &fallbackID,
				Hydrated:        true,
			},
			fallbackID: {
				ID:       fallbackID,
				Platform: PlatformAnthropic,
				Status:   StatusActive,
				Hydrated: true,
			},
		},
	}

	svc := &GatewayService{
		accountRepo:    accountRepo,
		groupRepo:      groupRepo,
		channelService: channelSvc,
		cfg:            testConfig(),
	}

	ctx := context.WithValue(context.Background(), ctxkey.Group, groupRepo.groups[groupID])
	result, err := svc.SelectAccountWithLoadAwareness(ctx, &groupID, "", "claude-sonnet-4-6", nil, "", 0)
	require.NoError(t, err)
	require.NotNil(t, result)
	require.NotNil(t, result.Account)
	require.Equal(t, int64(1), result.Account.ID)
}