package ui

import (
	"reflect"
	"testing"

	"git.warky.dev/wdevs/relspecgo/pkg/models"
)

func TestColumnDataOps(t *testing.T) {
	se := newTestEditor()

	if se.CreateColumn(5, 0, "x", "int", false, false) != nil || se.CreateColumn(0, 5, "x", "int", false, false) != nil {
		t.Error("create with bad index must return nil")
	}
	col := se.CreateColumn(0, 0, "age", "integer", true, true)
	if col == nil || col.Type != "integer" || !col.IsPrimaryKey || !col.NotNull {
		t.Fatalf("create: %+v", col)
	}
	if se.GetColumn(0, 0, "age") != col || se.GetColumn(0, 0, "nope") != nil || se.GetColumn(9, 0, "age") != nil {
		t.Error("get mismatch")
	}

	if se.CreateColumn(0, 0, "a", "text", false, false) == nil {
		t.Error("create second column")
	}

	tests := []struct {
		name     string
		si, ti   int
		old, new string
		want     bool
	}{
		{"bad table", 0, 9, "age", "age", false},
		{"missing column", 0, 0, "zzz", "zzz", false},
		{"in place", 0, 0, "age", "age", true},
		{"rename", 0, 0, "age", "years", true},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if got := se.UpdateColumn(tt.si, tt.ti, tt.old, tt.new, "bigint", false, true, "0", "desc"); got != tt.want {
				t.Errorf("got %v", got)
			}
		})
	}
	got := se.GetColumn(0, 0, "years")
	if got == nil || got.Name != "years" || got.Type != "bigint" || got.IsPrimaryKey || got.Default != "0" || got.Description != "desc" {
		t.Errorf("after update: %+v", got)
	}
	if se.GetColumn(0, 0, "age") != nil {
		t.Error("old name must be gone")
	}

	if len(se.GetAllColumns(0, 0)) != 4 || se.GetAllColumns(0, 9) != nil {
		t.Error("GetAllColumns")
	}
	if se.DeleteColumn(0, 9, "a") || se.DeleteColumn(0, 0, "zzz") {
		t.Error("delete bad target must fail")
	}
	if !se.DeleteColumn(0, 0, "a") || se.DeleteColumn(0, 0, "a") {
		t.Error("delete should succeed once")
	}
}

func TestCreateColumn_NilMap(t *testing.T) {
	se := newTestEditor()
	se.db.Schemas[0].Tables[0].Columns = nil
	if se.CreateColumn(0, 0, "a", "text", false, false) == nil {
		t.Error("create with nil map")
	}
}

func TestRelationshipDataOps(t *testing.T) {
	se := newTestEditor()
	rel := &models.Relationship{Name: "fk_a", FromTable: "users", ToTable: "orders"}

	if se.CreateRelationship(9, 0, rel) != nil || se.CreateRelationship(0, 9, rel) != nil || se.CreateRelationship(0, -1, rel) != nil {
		t.Error("create bad index")
	}
	// Before any relationship exists, update/delete/get/names report nothing.
	se.db.Schemas[0].Tables[0].Relationships = nil
	if se.UpdateRelationship(0, 0, "fk_a", rel) || se.DeleteRelationship(0, 0, "fk_a") ||
		se.GetRelationship(0, 0, "fk_a") != nil || se.GetRelationshipNames(0, 0) != nil {
		t.Error("nil map handling")
	}

	if se.CreateRelationship(0, 0, rel) != rel {
		t.Fatal("create")
	}
	se.CreateRelationship(0, 0, &models.Relationship{Name: "fk_0"})
	if got := se.GetRelationshipNames(0, 0); !reflect.DeepEqual(got, []string{"fk_0", "fk_a"}) {
		t.Errorf("names must be sorted: %v", got)
	}
	if se.GetRelationship(0, 0, "fk_a") != rel || se.GetRelationship(0, 0, "none") != nil {
		t.Error("get")
	}

	renamed := &models.Relationship{Name: "fk_b"}
	if !se.UpdateRelationship(0, 0, "fk_a", renamed) {
		t.Fatal("update")
	}
	if se.GetRelationship(0, 0, "fk_a") != nil || se.GetRelationship(0, 0, "fk_b") != renamed {
		t.Error("rename")
	}
	if se.UpdateRelationship(9, 0, "x", renamed) || se.UpdateRelationship(0, 9, "x", renamed) {
		t.Error("update bad index")
	}
	if se.DeleteRelationship(9, 0, "x") || se.DeleteRelationship(0, 9, "x") {
		t.Error("delete bad index")
	}
	if !se.DeleteRelationship(0, 0, "fk_b") || se.GetRelationship(0, 0, "fk_b") != nil {
		t.Error("delete")
	}
	if se.GetRelationship(9, 0, "x") != nil || se.GetRelationship(0, 9, "x") != nil ||
		se.GetRelationshipNames(9, 0) != nil || se.GetRelationshipNames(0, 9) != nil {
		t.Error("bad index reads")
	}
}

func TestSchemaDataOps(t *testing.T) {
	se := newTestEditor()
	s := se.CreateSchema("sales", "desc")
	if s == nil || s.Name != "sales" || s.Description != "desc" || s.Tables == nil || s.Sequences == nil || s.Enums == nil {
		t.Fatalf("create: %+v", s)
	}
	if len(se.GetAllSchemas()) != 2 || se.GetSchema(1) != s || se.GetSchema(2) != nil || se.GetSchema(-1) != nil {
		t.Error("get")
	}
	se.UpdateSchema(1, "billing", "owner", "d2")
	if s.Name != "billing" || s.Owner != "owner" || s.Description != "d2" {
		t.Errorf("update: %+v", s)
	}
	se.UpdateSchema(9, "x", "x", "x") // no panic
	if se.DeleteSchema(9) || se.DeleteSchema(-1) {
		t.Error("delete bad index")
	}
	if !se.DeleteSchema(1) || len(se.db.Schemas) != 1 {
		t.Error("delete")
	}
}

func TestTableDataOps(t *testing.T) {
	se := newTestEditor()
	if se.CreateTable(9, "x", "") != nil {
		t.Error("create bad schema")
	}
	tbl := se.CreateTable(0, "orders", "d")
	if tbl == nil || tbl.Schema != "public" || tbl.Columns == nil || tbl.Constraints == nil || tbl.Indexes == nil {
		t.Fatalf("create: %+v", tbl)
	}
	if se.GetTable(0, 1) != tbl || se.GetTable(0, 2) != nil || se.GetTable(9, 0) != nil || se.GetTable(0, -1) != nil {
		t.Error("get")
	}
	if len(se.GetAllTables()) != 2 || len(se.GetTablesInSchema(0)) != 2 || se.GetTablesInSchema(9) != nil {
		t.Error("get all")
	}
	se.UpdateTable(0, 1, "orders2", "d2")
	if tbl.Name != "orders2" || tbl.Description != "d2" {
		t.Errorf("update: %+v", tbl)
	}
	se.UpdateTable(9, 0, "x", "x")
	se.UpdateTable(0, 9, "x", "x")
	if se.DeleteTable(9, 0) || se.DeleteTable(0, 9) {
		t.Error("delete bad index")
	}
	if !se.DeleteTable(0, 1) || len(se.db.Schemas[0].Tables) != 1 {
		t.Error("delete")
	}
}

func TestUpdateDatabase(t *testing.T) {
	se := newTestEditor()
	se.updateDatabase("n", "d", "c", "pgsql", "16")
	db := se.db
	if db.Name != "n" || db.Description != "d" || db.Comment != "c" || db.DatabaseType != models.PostgresqlDatabaseType || db.DatabaseVersion != "16" {
		t.Errorf("%+v", db)
	}
}

func TestDomainDataOps(t *testing.T) {
	se := NewSchemaEditor(models.InitDatabase("d"))
	se.createDomain("a", "da")
	se.createDomain("b", "db")
	if len(se.db.Domains) != 2 || se.db.Domains[1].Sequence != 1 {
		t.Fatalf("create: %+v", se.db.Domains)
	}
	se.updateDomain(0, "a2", "da2")
	se.updateDomain(9, "x", "x")
	if se.db.Domains[0].Name != "a2" || se.db.Domains[0].Description != "da2" {
		t.Error("update")
	}
	se.deleteDomain(9)
	se.deleteDomain(-1)
	se.deleteDomain(0)
	if len(se.db.Domains) != 1 || se.db.Domains[0].Name != "b" {
		t.Errorf("delete: %+v", se.db.Domains)
	}
}