package domain64

import (
	"context"
	"database/sql"
	"testing"

	"github.com/jpillora/go-tld"
	_ "modernc.org/sqlite"
)

func setup() *sql.DB {
	ctx := context.Background()

	// db, err := sql.Open("sqlite", "sqlc/test.sqlite")
	db, err := sql.Open("sqlite", ":memory:")
	if err != nil {
		// TODO
		panic(err)
	}

	// create tables
	if _, err := db.ExecContext(ctx, ddl); err != nil {
		panic(err)
	}
	return db
}

func TestNewDomain64Map(t *testing.T) {
	db := setup()
	M, err := NewDomain64Map()
	M.Setup(db)
	if err != nil {
		// TODO
		t.Error(err)
	}
	if M.DB == nil {
		t.Error("DB should not be nil")
	}
}

func TestURLToRFQDN(t *testing.T) {
	M, _ := NewDomain64Map()
	// M.Setup(db)
	simple, _ := tld.Parse("https://jadud.com/")
	rfqdn := M.URLToRFQDN(simple)
	if rfqdn != "com.jadud/" {
		t.Errorf("Expected `com.jadud/`, got %s", rfqdn)
	}
}

func TestURLToDomain64(t *testing.T) {
	db := setup()
	M, _ := NewDomain64Map()
	M.Setup(db)
	simple, _ := tld.Parse("https://jadud.com/")
	d64, _ := M.URLToDomain64(simple)
	if d64.TLD != 1 {
		t.Errorf("expected TLD == 1, got %d", d64.TLD)
	}

	if d64.Domain != 1 {
		t.Errorf("expected domain == 1, got %d", d64.Domain)
	}
}

func TestURLToDomain64_02(t *testing.T) {
	db := setup()
	M, _ := NewDomain64Map()
	M.Setup(db)
	simple1, _ := tld.Parse("https://jadud.com/")
	simple2, _ := tld.Parse("https://another.com/")
	d64_1, _ := M.URLToDomain64(simple1)
	d64_2, _ := M.URLToDomain64(simple2)

	if d64_1.TLD != 1 {
		t.Errorf("expected TLD == 1, got %d", d64_1.TLD)
	}

	if d64_1.Domain != 1 {
		t.Errorf("expected domain == 1, got %d", d64_1.Domain)
	}

	if d64_2.TLD != 1 {
		t.Errorf("expected TLD == 1, got %d", d64_2.TLD)
	}

	if d64_2.Domain != 2 {
		t.Errorf("expected domain == 2, got %d", d64_2.Domain)
	}

}

func TestURLToDomain64_03(t *testing.T) {
	db := setup()
	M, _ := NewDomain64Map()
	M.Setup(db)
	var tests = []struct {
		url       string
		tld       int64
		domain    int64
		subdomain int64
		path      int64
		d64       int64
	}{
		{"https://jadud.com/", 1, 1, 0, 0, 0x0100000100000000},
		{"https://research.jadud.com/", 1, 1, 1, 0, 0x0100000101000000},
		{"https://teaching.jadud.com/", 1, 1, 2, 0, 0x0100000102000000},
		{"https://teaching.jadud.com/classes", 1, 1, 2, 1, 0x0100000102000001},
		{"https://teaching.jadud.com/other-classes", 1, 1, 2, 2, 0x0100000102000002},
		{"https://research.jadud.com/papers", 1, 1, 1, 1, 0x0100000101000001},
		{"https://research.jadud.com/experiments", 1, 1, 1, 2, 0x0100000101000002},
		{"https://teaching.another.com/classes", 1, 2, 1, 1, 0x0100000201000001},
		{"https://teaching.jadud.org/classes", 2, 1, 1, 1, 0x0200000101000001},
		// The ordering here matters; if we see a "bare" domain after first seeing the
		// subdomain, I expect the numbering to come out right. That is, subdomain <- 0 and
		// path <- 0. That is because of "" and "/" checking on subdomain and path, respectively.
		{"https://jadud.org/", 2, 1, 0, 0, 0x0200000100000000},
	}

	for _, tt := range tests {
		parsed, _ := tld.Parse(tt.url)
		d64, _ := M.URLToDomain64(parsed)
		if d64.TLD != tt.tld {
			t.Errorf("%s TLD expected %d given %d", tt.url, tt.tld, d64.TLD)
		}
		if d64.Domain != tt.domain {
			t.Errorf("%s Domain expected %d given %d", tt.url, tt.domain, d64.Domain)
		}
		if d64.Subdomain != tt.subdomain {
			t.Errorf("%s Subdomain expected %d given %d", tt.url, tt.subdomain, d64.Subdomain)
		}
		if d64.Path != tt.path {
			t.Errorf("%s Path expected %d given %d", tt.url, tt.path, d64.Path)
		}
		if d64.ToInt64() != tt.d64 {
			t.Errorf("%s int64 value expected %d given %d", tt.url, tt.d64, d64.ToInt64())
		}
	}
}