package writers

import "testing"

func TestQuoteDefaultValue(t *testing.T) {
	t.Parallel()

	tests := []struct {
		name    string
		value   string
		sqlType string
		want    string
	}{
		{
			name:    "text default is quoted",
			value:   "active",
			sqlType: "text",
			want:    "'active'",
		},
		{
			name:    "array default from bare literal is quoted once",
			value:   "{}",
			sqlType: "text[]",
			want:    "'{}'",
		},
		{
			name:    "array default from quoted literal is preserved",
			value:   "'{}'",
			sqlType: "text[]",
			want:    "'{}'",
		},
		{
			name:    "array default from double quoted literal is normalized",
			value:   "''{}''",
			sqlType: "text[]",
			want:    "'{}'",
		},
		{
			name:    "function default is left alone",
			value:   "now()",
			sqlType: "timestamptz",
			want:    "now()",
		},
		{
			name:    "bare keyword default CURRENT_DATE is not quoted",
			value:   "CURRENT_DATE",
			sqlType: "date",
			want:    "CURRENT_DATE",
		},
		{
			name:    "bare keyword default is case insensitive",
			value:   "current_timestamp",
			sqlType: "timestamptz",
			want:    "current_timestamp",
		},
		{
			name:    "bare keyword default localtime is not quoted",
			value:   "LOCALTIME",
			sqlType: "time",
			want:    "LOCALTIME",
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got := QuoteDefaultValue(tt.value, tt.sqlType)
			if got != tt.want {
				t.Fatalf("QuoteDefaultValue(%q, %q) = %q, want %q", tt.value, tt.sqlType, got, tt.want)
			}
		})
	}
}

func TestQualifiedTableName(t *testing.T) {
	tests := []struct {
		schema, table string
		flatten       bool
		want          string
	}{
		{"", "t", false, "t"},
		{"", "t", true, "t"},
		{"s", "t", false, "s.t"},
		{"s", "t", true, "s_t"},
	}
	for _, tt := range tests {
		if got := QualifiedTableName(tt.schema, tt.table, tt.flatten); got != tt.want {
			t.Errorf("%+v: got %q", tt, got)
		}
	}
}

func TestSanitizeFilename(t *testing.T) {
	tests := []struct{ in, want string }{
		{`"users"`, "users"},
		{`'users'`, "users"},
		{"`users`", "users"},
		{"users [note: 'x']", "users"},
		{"a/b\\c:d*e?f<g>h|i", "a_b_c_d_e_f_g_h_i"},
		{"__a__b__", "a_b"},
		{"  spaced  ", "spaced"},
		{"ctl\x01char", "ctl_char"},
	}
	for _, tt := range tests {
		if got := SanitizeFilename(tt.in); got != tt.want {
			t.Errorf("%q: got %q want %q", tt.in, got, tt.want)
		}
	}
}

func TestSanitizeStructTagValue(t *testing.T) {
	tests := []struct{ in, want string }{
		{"name", "name"},
		{"`na\"me'`", "name"},
		{"users [note: 'x']", "users"},
		{"tags[]", "tags[]"},
		{"  padded  ", "padded"},
	}
	for _, tt := range tests {
		if got := SanitizeStructTagValue(tt.in); got != tt.want {
			t.Errorf("%q: got %q want %q", tt.in, got, tt.want)
		}
	}
}