package migrations

import (
	"strings"
	"testing"

	"github.com/stretchr/testify/require"
)

func TestMigration112UsesIdempotentAddColumn(t *testing.T) {
	content, err := FS.ReadFile("112_add_payment_order_provider_key_snapshot.sql")
	require.NoError(t, err)

	sql := string(content)
	require.Contains(t, sql, "ADD COLUMN IF NOT EXISTS provider_key VARCHAR(30)")
	require.NotContains(t, sql, "ADD COLUMN provider_key VARCHAR(30);")
}

func TestMigration118DoesNotForceOverwriteAuthSourceGrantDefaults(t *testing.T) {
	content, err := FS.ReadFile("118_wechat_dual_mode_and_auth_source_defaults.sql")
	require.NoError(t, err)

	sql := string(content)
	require.NotContains(t, sql, "UPDATE settings")
	require.NotContains(t, sql, "SET value = 'false'")
	require.True(t, strings.Contains(sql, "ON CONFLICT (key) DO NOTHING"))
	require.Contains(t, sql, "THEN ''")
}

func TestAuthIdentityReportTypeWideningRunsBeforeLongReportWritersAndStillReconcilesAt121(t *testing.T) {
	preflightContent, err := FS.ReadFile("108a_widen_auth_identity_migration_report_type.sql")
	require.NoError(t, err)

	preflightSQL := string(preflightContent)
	require.Contains(t, preflightSQL, "ALTER TABLE auth_identity_migration_reports")
	require.Contains(t, preflightSQL, "ALTER COLUMN report_type TYPE VARCHAR(80)")

	content, err := FS.ReadFile("109_auth_identity_compat_backfill.sql")
	require.NoError(t, err)

	sql := string(content)
	require.NotContains(t, sql, "ALTER TABLE auth_identity_migration_reports")

	followupContent, err := FS.ReadFile("121_auth_identity_migration_report_type_widen.sql")
	require.NoError(t, err)

	followupSQL := string(followupContent)
	require.Contains(t, followupSQL, "ALTER TABLE auth_identity_migration_reports")
	require.Contains(t, followupSQL, "ALTER COLUMN report_type TYPE VARCHAR(80)")
}

func TestMigration119DefersPaymentIndexRolloutToOnlineFollowup(t *testing.T) {
	content, err := FS.ReadFile("119_enforce_payment_orders_out_trade_no_unique.sql")
	require.NoError(t, err)

	sql := string(content)
	require.Contains(t, sql, "120_enforce_payment_orders_out_trade_no_unique_notx.sql")
	require.Contains(t, sql, "NULL;")
	require.NotContains(t, sql, "CREATE UNIQUE INDEX")
	require.NotContains(t, sql, "DROP INDEX")

	followupContent, err := FS.ReadFile("120_enforce_payment_orders_out_trade_no_unique_notx.sql")
	require.NoError(t, err)

	followupSQL := string(followupContent)
	require.Contains(t, followupSQL, "CREATE UNIQUE INDEX CONCURRENTLY IF NOT EXISTS paymentorder_out_trade_no_unique")
	require.NotContains(t, followupSQL, "DROP INDEX CONCURRENTLY IF EXISTS paymentorder_out_trade_no_unique")
	require.Contains(t, followupSQL, "DROP INDEX CONCURRENTLY IF EXISTS paymentorder_out_trade_no")
	require.Contains(t, followupSQL, "WHERE out_trade_no <> ''")

	alignmentContent, err := FS.ReadFile("120a_align_payment_orders_out_trade_no_index_name.sql")
	require.NoError(t, err)

	alignmentSQL := string(alignmentContent)
	require.Contains(t, alignmentSQL, "paymentorder_out_trade_no_unique")
	require.Contains(t, alignmentSQL, "RENAME TO paymentorder_out_trade_no")
}

func TestMigration122ScrubsPendingOAuthCompletionTokensAtRest(t *testing.T) {
	content, err := FS.ReadFile("122_pending_auth_completion_token_cleanup.sql")
	require.NoError(t, err)

	sql := string(content)
	require.Contains(t, sql, "UPDATE pending_auth_sessions")
	require.Contains(t, sql, "completion_response")
	require.Contains(t, sql, "access_token")
	require.Contains(t, sql, "refresh_token")
	require.Contains(t, sql, "expires_in")
	require.Contains(t, sql, "token_type")
}

func TestMigration123BackfillsLegacyAuthSourceGrantDefaultsSafely(t *testing.T) {
	content, err := FS.ReadFile("123_fix_legacy_auth_source_grant_on_signup_defaults.sql")
	require.NoError(t, err)

	sql := string(content)
	require.Contains(t, sql, "Intentionally left as a no-op")
	require.NotContains(t, sql, "UPDATE settings")
	require.NotContains(t, sql, "value = 'false'")
}
