package coinledger

import "testing"

func TestNormalizeListQueryCapsPageSize(t *testing.T) {
	query := normalizeListQuery(listQuery{Page: -1, PageSize: 1000, UserKeyword: "  10001  "})
	if query.Page != 1 || query.PageSize != 100 || query.UserKeyword != "10001" {
		t.Fatalf("normalized query mismatch: %+v", query)
	}
}

func TestCoinLedgerWhereUsesTimeWindowAndUserFilter(t *testing.T) {
	query := listQuery{StartAtMS: 100, EndAtMS: 200}
	where, args := coinLedgerWhere("lalu", query, []int64{11, 22})
	if want := "WHERE e.app_code = ? AND e.asset_type = ? AND e.created_at_ms >= ? AND e.created_at_ms < ? AND e.user_id IN (?,?)"; where != want {
		t.Fatalf("where mismatch:\nwant %s\n got %s", want, where)
	}
	if len(args) != 6 || args[0] != "lalu" || args[1] != coinAssetType || args[2] != int64(100) || args[3] != int64(200) || args[4] != int64(11) || args[5] != int64(22) {
		t.Fatalf("args mismatch: %#v", args)
	}
}

func TestCoinAdjustmentWhereLimitsManualCreditCoinEntries(t *testing.T) {
	query := listQuery{StartAtMS: 100, EndAtMS: 200}
	where, args := coinAdjustmentWhere("lalu", query, []int64{11})
	if want := "WHERE e.app_code = ? AND e.asset_type = ? AND wt.biz_type = ? AND e.created_at_ms >= ? AND e.created_at_ms < ? AND e.user_id IN (?)"; where != want {
		t.Fatalf("where mismatch:\nwant %s\n got %s", want, where)
	}
	if len(args) != 6 || args[0] != "lalu" || args[1] != coinAssetType || args[2] != coinManualCreditBizType || args[3] != int64(100) || args[4] != int64(200) || args[5] != int64(11) {
		t.Fatalf("args mismatch: %#v", args)
	}
}

func TestDirectionAndAmountForDelta(t *testing.T) {
	if directionForDelta(-9) != directionOut || absInt64(-9) != 9 {
		t.Fatalf("expense projection mismatch")
	}
	if directionForDelta(12) != directionIn || absInt64(12) != 12 {
		t.Fatalf("income projection mismatch")
	}
}

func TestParseMetadataJSON(t *testing.T) {
	metadata, err := parseMetadataJSON(`{"gift_name":"Rose","gift_count":2,"target_user_id":1002}`)
	if err != nil {
		t.Fatalf("parse metadata failed: %v", err)
	}
	if metadata["gift_name"] != "Rose" || metadata["gift_count"] != float64(2) || metadata["target_user_id"] != float64(1002) {
		t.Fatalf("metadata mismatch: %#v", metadata)
	}

	empty, err := parseMetadataJSON("null")
	if err != nil {
		t.Fatalf("parse empty metadata failed: %v", err)
	}
	if len(empty) != 0 {
		t.Fatalf("empty metadata mismatch: %#v", empty)
	}
}