package wmo

import (
	"go.mongodb.org/mongo-driver/mongo"
	"gogs.mikescher.com/BlackForestBytes/goext/langext"
	"gogs.mikescher.com/BlackForestBytes/goext/tst"
	"testing"
	"time"
)

func TestReflectionGetFieldType(t *testing.T) {

	type IDType string

	type TestData struct {
		ID    IDType    `bson:"_id"`
		CDate time.Time `bson:"cdate"`
		Sub   struct {
			A string `bson:"a"`
		} `bson:"sub"`
		Str string `bson:"str"`
		Ptr *int   `bson:"ptr"`
	}

	coll := W[TestData](&mongo.Collection{})

	coll.init()

	t0 := time.Now()

	d := TestData{
		ID:    "1",
		CDate: t0,
		Sub: struct {
			A string `bson:"a"`
		}{
			A: "2",
		},
		Str: "3",
		Ptr: langext.Ptr(4),
	}

	tst.AssertEqual(t, coll.getFieldType("_id").Kind.String(), "string")
	tst.AssertEqual(t, coll.getFieldType("_id").Type.String(), "wmo.IDType")
	tst.AssertEqual(t, coll.getFieldType("_id").Name, "ID")
	tst.AssertEqual(t, coll.getFieldType("_id").IsPointer, false)
	tst.AssertEqual(t, coll.getFieldValue(d, "_id").(IDType), "1")

	tst.AssertEqual(t, coll.getFieldType("cdate").Kind.String(), "struct")
	tst.AssertEqual(t, coll.getFieldType("cdate").Type.String(), "time.Time")
	tst.AssertEqual(t, coll.getFieldType("cdate").Name, "CDate")
	tst.AssertEqual(t, coll.getFieldType("cdate").IsPointer, false)
	tst.AssertEqual(t, coll.getFieldValue(d, "cdate").(time.Time), t0)

	tst.AssertEqual(t, coll.getFieldType("sub.a").Kind.String(), "string")
	tst.AssertEqual(t, coll.getFieldType("sub.a").Type.String(), "string")
	tst.AssertEqual(t, coll.getFieldType("sub.a").Name, "A")
	tst.AssertEqual(t, coll.getFieldType("sub.a").IsPointer, false)
	tst.AssertEqual(t, coll.getFieldValue(d, "sub.a").(string), "2")

	tst.AssertEqual(t, coll.getFieldType("str").Kind.String(), "string")
	tst.AssertEqual(t, coll.getFieldType("str").Type.String(), "string")
	tst.AssertEqual(t, coll.getFieldType("str").Name, "Str")
	tst.AssertEqual(t, coll.getFieldType("str").IsPointer, false)
	tst.AssertEqual(t, coll.getFieldValue(d, "str").(string), "3")

	tst.AssertEqual(t, coll.getFieldType("ptr").Kind.String(), "int")
	tst.AssertEqual(t, coll.getFieldType("ptr").Type.String(), "int")
	tst.AssertEqual(t, coll.getFieldType("ptr").Name, "Ptr")
	tst.AssertEqual(t, coll.getFieldType("ptr").IsPointer, true)
	tst.AssertEqual(t, *coll.getFieldValue(d, "ptr").(*int), 4)
}

func TestReflectionGetTokenValueAsMongoType(t *testing.T) {

	type IDType string

	type TestData struct {
		ID    IDType    `bson:"_id"`
		CDate time.Time `bson:"cdate"`
		Sub   struct {
			A string `bson:"a"`
		} `bson:"sub"`
		Str string `bson:"str"`
		Ptr *int   `bson:"ptr"`
		Num int    `bson:"num"`
	}

	coll := W[TestData](&mongo.Collection{})

	coll.init()

	gtvasmt := func(value string, fieldName string) any {
		v, err := coll.getTokenValueAsMongoType(value, fieldName)
		if err != nil {
			t.Errorf("%s", "failed to getTokenValueAsMongoType")
		}
		return v
	}

	tst.AssertEqual(t, gtvasmt("hello", "str").(string), "hello")
	tst.AssertEqual(t, gtvasmt("4", "num").(int), 4)
	tst.AssertEqual(t, gtvasmt("asdf", "_id").(IDType), "asdf")
	tst.AssertEqual(t, gtvasmt("", "ptr").(*int), nil)
	tst.AssertEqual(t, *(gtvasmt("123", "ptr").(*int)), 123)
}

func TestReflectionGetFieldValueAsTokenString(t *testing.T) {

	type IDType string

	type TestData struct {
		ID    IDType    `bson:"_id"`
		CDate time.Time `bson:"cdate"`
		Sub   struct {
			A string `bson:"a"`
		} `bson:"sub"`
		Str  string  `bson:"str"`
		Ptr  *int    `bson:"ptr"`
		Num  int     `bson:"num"`
		Ptr2 *int    `bson:"ptr2"`
		FFF  float64 `bson:"fff"`
	}

	coll := W[TestData](&mongo.Collection{})

	coll.init()

	t0 := time.Now()

	d := TestData{
		ID:    "1",
		CDate: t0,
		Sub: struct {
			A string `bson:"a"`
		}{
			A: "2",
		},
		Str:  "3",
		Ptr:  langext.Ptr(4),
		Num:  22,
		FFF:  22.5,
		Ptr2: nil,
	}

	gfvats := func(value TestData, fieldName string) string {
		v, err := coll.getFieldValueAsTokenString(value, fieldName)
		if err != nil {
			t.Errorf("%s", "failed to getTokenValueAsMongoType")
		}
		return v
	}

	tst.AssertEqual(t, gfvats(d, "str"), "3")
	tst.AssertEqual(t, gfvats(d, "num"), "22")
	tst.AssertEqual(t, gfvats(d, "_id"), "1")
	tst.AssertEqual(t, gfvats(d, "ptr"), "4")
	tst.AssertEqual(t, gfvats(d, "ptr2"), "")
	tst.AssertEqual(t, gfvats(d, "fff"), "22.5")
}