package creator

import (
	"errors"
	"fmt"
	"os"
	"strings"
	"sync"
	"testing"

	"git.ipao.vip/rogee/creator-hub/internal/account"
)

func TestCreatorFirstLoginBindsUIDAndNeverReplacesIt(t *testing.T) {
	store, accounts, ctx := openCreatorIntegrationStore(t)
	create := func(id string) {
		t.Helper()
		err := accounts.CreateAccount(ctx, account.Account{ID: id, Name: id, Platform: "douyin", CredentialReference: account.CredentialReference{ID: id, Provider: "secret_manager"}, CredentialKey: "creatorhub/" + id}, integrationCredentialBridge{})
		if err != nil {
			t.Fatal(err)
		}
		if err := store.EnsureAccountProfile(ctx, id); err != nil {
			t.Fatal(err)
		}
	}
	create("uid-first")
	create("uid-second")
	before, err := store.GetAccountProfile(ctx, "uid-first")
	if err != nil || before.PlatformAccountKey != "" {
		t.Fatalf("new account must be unbound: %#v err=%v", before, err)
	}
	for i := 0; i < 2; i++ {
		result, err := store.RecordVerifiedLoginResult(ctx, "uid-first", "99491952055")
		if err != nil || result.Status != "logged_in" || result.ActualKey != "99491952055" {
			t.Fatalf("verify %d: %#v err=%v", i, result, err)
		}
	}
	bound, err := accounts.GetAccount(ctx, "uid-first")
	if err != nil || bound.PlatformAccountKey != "99491952055" {
		t.Fatalf("verified UID was not persisted: %#v err=%v", bound, err)
	}
	if _, err := store.RecordVerifiedLoginResult(ctx, "uid-first", "123456789"); !errors.Is(err, ErrConflict) || !strings.Contains(err.Error(), "99491952055") || !strings.Contains(err.Error(), "123456789") {
		t.Fatalf("mismatch must explain both UIDs: %v", err)
	}
	if _, err := store.RecordVerifiedLoginResult(ctx, "uid-second", "99491952055"); !errors.Is(err, ErrConflict) || !strings.Contains(err.Error(), "已绑定") {
		t.Fatalf("duplicate binding should fail visibly: %v", err)
	}
	second, err := store.GetAccountProfile(ctx, "uid-second")
	if err != nil || second.PlatformAccountKey != "" || second.LoginStatus == "logged_in" {
		t.Fatalf("failed bind changed account: %#v err=%v", second, err)
	}
}

func TestCreatorConcurrentFirstLoginBindsExactlyOneUID(t *testing.T) {
	store, accounts, ctx := openCreatorIntegrationStore(t)
	id := "uid-concurrent"
	if err := accounts.CreateAccount(ctx, account.Account{ID: id, Name: id, Platform: "douyin", CredentialReference: account.CredentialReference{ID: id, Provider: "secret_manager"}, CredentialKey: "creatorhub/" + id}, integrationCredentialBridge{}); err != nil {
		t.Fatal(err)
	}
	if err := store.EnsureAccountProfile(ctx, id); err != nil {
		t.Fatal(err)
	}
	var wg sync.WaitGroup
	outcomes := make(chan error, 2)
	for _, uid := range []string{"111111111", "222222222"} {
		wg.Add(1)
		go func(uid string) {
			defer wg.Done()
			_, err := store.RecordVerifiedLoginResult(ctx, id, uid)
			outcomes <- err
		}(uid)
	}
	wg.Wait()
	close(outcomes)
	succeeded, conflicts := 0, 0
	for err := range outcomes {
		if err == nil {
			succeeded++
		} else if errors.Is(err, ErrConflict) {
			conflicts++
		} else {
			t.Fatal(err)
		}
	}
	if succeeded != 1 || conflicts != 1 {
		t.Fatalf("competing logins changed UID more than once: success=%d conflict=%d", succeeded, conflicts)
	}
}

func TestUIDMigrationClearsUnverifiedKeysAndPreservesVerifiedUID(t *testing.T) {
	store, accounts, ctx := openCreatorIntegrationStore(t)
	for i, status := range []string{"logged_in", "needs_login", "manual_required"} {
		id := fmt.Sprintf("uid-migration-%d", i)
		if err := accounts.CreateAccount(ctx, account.Account{ID: id, Name: id, Platform: "douyin", PlatformAccountKey: fmt.Sprintf("1000000%d", i), CredentialReference: account.CredentialReference{ID: id, Provider: "secret_manager"}, CredentialKey: "creatorhub/" + id}, integrationCredentialBridge{}); err != nil {
			t.Fatal(err)
		}
		if err := store.EnsureAccountProfile(ctx, id); err != nil {
			t.Fatal(err)
		}
		if _, err := store.db.ExecContext(ctx, `UPDATE creator_account_profile SET login_status=$2 WHERE account_id=(SELECT id FROM social_account WHERE account_id=$1)`, id, status); err != nil {
			t.Fatal(err)
		}
	}
	migration, err := os.ReadFile("../environment/migrations/1047_account_uid_first_login.sql")
	if err != nil {
		t.Fatal(err)
	}
	if _, err := store.db.ExecContext(ctx, string(migration)); err != nil {
		t.Fatal(err)
	}
	for i := 0; i < 3; i++ {
		profile, err := store.GetAccountProfile(ctx, fmt.Sprintf("uid-migration-%d", i))
		want := ""
		if i == 0 {
			want = "10000000"
		}
		if err != nil || profile.PlatformAccountKey != want {
			t.Fatalf("migration %d: %#v err=%v", i, profile, err)
		}
	}
}