package modes

import (
	"strings"
	"testing"

	"github.com/bnema/zut/packages/tui"
)

func TestLoginDialogProviderPickerFiltersLikeModelPicker(t *testing.T) {
	d := newLoginDialog()
	d.step = loginStepProvider
	d.method = "apikey"
	d.status = map[string]string{}
	for _, r := range "llamacpp" {
		d.HandleKey(tui.Key{Kind: tui.KeyRune, Rune: r})
	}
	options := d.providerOptions()
	if len(options) != 1 || options[0] != "llama.cpp" {
		t.Fatalf("options = %v", options)
	}
	d.HandleKey(tui.Key{Kind: tui.KeyEnter})
	if d.step != loginStepLlamaURL {
		t.Fatalf("step = %v", d.step)
	}
}

func TestLoginDialogProviderPickerShowsNoMatches(t *testing.T) {
	d := newLoginDialog()
	d.step = loginStepProvider
	d.method = "apikey"
	d.status = map[string]string{}
	d.providerQuery = "not-a-provider"
	if options := d.providerOptions(); len(options) != 0 {
		t.Fatalf("options = %v", options)
	}
	d.HandleKey(tui.Key{Kind: tui.KeyPageDown})
	if d.cursor != 0 {
		t.Fatalf("cursor = %d", d.cursor)
	}
	if action := d.HandleKey(tui.Key{Kind: tui.KeyEnter}); action != (loginDialogAction{}) {
		t.Fatalf("action = %+v", action)
	}
}

func TestLoginDialogLlamaCPPValidatesURLAndAcceptsOptionalKey(t *testing.T) {
	d := newLoginDialog()
	d.step = loginStepLlamaURL
	d.provider = "llama.cpp"
	d.method = "apikey"
	d.llamaEd = tui.NewEditor("")

	d.llamaEd.SetValue("file:///tmp/router")
	if action := d.HandleKey(tui.Key{Kind: tui.KeyEnter}); action.SaveLlama || d.step != loginStepLlamaURL {
		t.Fatalf("invalid URL advanced dialog: action=%+v step=%v", action, d.step)
	}
	if !strings.Contains(d.message, "http or https") {
		t.Fatalf("validation message = %q", d.message)
	}

	d.llamaEd.SetValue("http://127.0.0.1:8080/v1/")
	d.HandleKey(tui.Key{Kind: tui.KeyEnter})
	if d.step != loginStepLlamaKey || d.llamaURL != "http://127.0.0.1:8080" {
		t.Fatalf("step=%v URL=%q", d.step, d.llamaURL)
	}
	action := d.HandleKey(tui.Key{Kind: tui.KeyEnter})
	if !action.SaveLlama || action.LlamaURL != "http://127.0.0.1:8080" || action.LlamaAPIKey != "" {
		t.Fatalf("action = %+v", action)
	}
}

func TestLoginDialogCursorPosMatchesPaddedInputRow(t *testing.T) {
	d := newLoginDialog()
	d.Open(t.TempDir())
	d.method = "oauth"
	d.provider = "anthropic"
	d.ShowWaiting("https://example.com/oauth/authorize?code_challenge=abc&state=xyz")

	// Floating panes render this dialog narrower than the main terminal, so
	// CursorPos must use the identical width to retain wrapping alignment.
	const paneWidth = 62
	lines := padDialogFrame(d.Render(tui.Theme{}, paneWidth))
	row, _ := d.CursorPos(paneWidth)
	if row < 0 || row >= len(lines) {
		t.Fatalf("CursorPos row = %d outside rendered lines %d", row, len(lines))
	}
	if got := stripANSIBytes(lines[row]); !strings.Contains(got, "▌") {
		t.Fatalf("CursorPos row %d = %q; want editor input row", row, got)
	}
}