package db

import (
	"testing"

	"github.com/letsencrypt/boulder/test"
)

func TestNewMulti(t *testing.T) {
	_, err := NewMultiInserter("", "colA", "")
	test.AssertError(t, err, "Empty table name should fail")

	_, err = NewMultiInserter("myTable", "", "")
	test.AssertError(t, err, "Empty fields string should fail")

	mi, err := NewMultiInserter("myTable", "colA", "")
	test.AssertNotError(t, err, "Single-column construction should not fail")
	test.AssertEquals(t, mi.numFields, 1)

	mi, err = NewMultiInserter("myTable", "colA,colB,  colC", "")
	test.AssertNotError(t, err, "Multi-column construction should not fail")
	test.AssertEquals(t, mi.numFields, 3)
}

func TestMultiAdd(t *testing.T) {
	mi, err := NewMultiInserter("table", "a,b,c", "")
	test.AssertNotError(t, err, "Failed to create test MultiInserter")

	err = mi.Add([]interface{}{})
	test.AssertError(t, err, "Adding empty row should fail")

	err = mi.Add([]interface{}{"foo"})
	test.AssertError(t, err, "Adding short row should fail")

	err = mi.Add([]interface{}{"foo", "bar", "baz", "bing", "boom"})
	test.AssertError(t, err, "Adding long row should fail")

	err = mi.Add([]interface{}{"one", "two", "three"})
	test.AssertNotError(t, err, "Adding correct-length row shouldn't fail")
	test.AssertEquals(t, len(mi.values), 1)

	err = mi.Add([]interface{}{1, "two", map[string]int{"three": 3}})
	test.AssertNotError(t, err, "Adding heterogeneous row shouldn't fail")
	test.AssertEquals(t, len(mi.values), 2)
	// Note that .Add does *not* enforce that each row is of the same types.
}

func TestMultiQuery(t *testing.T) {
	mi, err := NewMultiInserter("table", "a,b,c", "")
	test.AssertNotError(t, err, "Failed to create test MultiInserter")
	err = mi.Add([]interface{}{"one", "two", "three"})
	test.AssertNotError(t, err, "Failed to insert test row")
	err = mi.Add([]interface{}{"egy", "kettö", "három"})
	test.AssertNotError(t, err, "Failed to insert test row")

	query, queryArgs := mi.query()
	test.AssertEquals(t, query, "INSERT INTO table (a,b,c) VALUES (?,?,?),(?,?,?);")
	test.AssertDeepEquals(t, queryArgs, []interface{}{"one", "two", "three", "egy", "kettö", "három"})

	mi, err = NewMultiInserter("table", "a,b,c", "id")
	test.AssertNotError(t, err, "Failed to create test MultiInserter")
	err = mi.Add([]interface{}{"one", "two", "three"})
	test.AssertNotError(t, err, "Failed to insert test row")
	err = mi.Add([]interface{}{"egy", "kettö", "három"})
	test.AssertNotError(t, err, "Failed to insert test row")

	query, queryArgs = mi.query()
	test.AssertEquals(t, query, "INSERT INTO table (a,b,c) VALUES (?,?,?),(?,?,?) RETURNING id;")
	test.AssertDeepEquals(t, queryArgs, []interface{}{"one", "two", "three", "egy", "kettö", "három"})
}