// Package miot_test provides black-box tests for web_pages.go page templates.
package miot_test

import (
	"strings"
	"testing"

	miot "xiaomihome/miot"
)

// ============================================================================
// OAuthRedirectPage
// ============================================================================

func TestOAuthRedirectPage_Success(t *testing.T) {
	html := miot.OAuthRedirectPage("My Title", "Welcome!", "Close", true)

	if html == "" {
		t.Fatal("OAuthRedirectPage returned empty string")
	}
	if !strings.Contains(html, "My Title") {
		t.Error("HTML should contain 'My Title'")
	}
	if !strings.Contains(html, "Welcome!") {
		t.Error("HTML should contain 'Welcome!'")
	}
	if !strings.Contains(html, "Close") {
		t.Error("HTML should contain 'Close'")
	}
	// STATUS_PLACEHOLDER should be "true"
	if !strings.Contains(html, "true") {
		t.Error("HTML should contain 'true' for success")
	}
	// Note: TITLE_PLACEHOLDER appears twice in template but strings.Replace(...,1)
	// only replaces the first occurrence (in <title>). The second occurrence
	// (in <a id="titleArea">) remains.
	// CONTENT_PLACEHOLDER and BUTTON_PLACEHOLDER each appear once and are replaced.
	if strings.Contains(html, "CONTENT_PLACEHOLDER") {
		t.Error("CONTENT_PLACEHOLDER should have been replaced")
	}
	if strings.Contains(html, "BUTTON_PLACEHOLDER") {
		t.Error("BUTTON_PLACEHOLDER should have been replaced")
	}
	if strings.Contains(html, "STATUS_PLACEHOLDER") {
		t.Error("STATUS_PLACEHOLDER should have been replaced")
	}
}

func TestOAuthRedirectPage_Failure(t *testing.T) {
	html := miot.OAuthRedirectPage("Error", "Auth failed", "Retry", false)

	if html == "" {
		t.Fatal("OAuthRedirectPage returned empty string")
	}
	// STATUS_PLACEHOLDER should be "false"
	if !strings.Contains(html, "false") {
		t.Error("HTML should contain 'false' for failure")
	}
}

func TestOAuthRedirectPage_EmptyValues(t *testing.T) {
	html := miot.OAuthRedirectPage("", "", "", false)

	if html == "" {
		t.Fatal("OAuthRedirectPage with empty values should still return HTML")
	}
	// Note: TITLE_PLACEHOLDER appears twice, only first is replaced.
	// CONTENT_PLACEHOLDER, BUTTON_PLACEHOLDER, STATUS_PLACEHOLDER should be gone.
	if strings.Contains(html, "CONTENT_PLACEHOLDER") {
		t.Error("CONTENT_PLACEHOLDER should not remain")
	}
	if strings.Contains(html, "BUTTON_PLACEHOLDER") {
		t.Error("BUTTON_PLACEHOLDER should not remain")
	}
	if strings.Contains(html, "STATUS_PLACEHOLDER") {
		t.Error("STATUS_PLACEHOLDER should not remain")
	}
}

func TestOAuthRedirectPage_SpecialCharacters(t *testing.T) {
	title := "Test <>&\"' Title"
	html := miot.OAuthRedirectPage(title, "content", "button", true)

	if html == "" {
		t.Fatal("OAuthRedirectPage returned empty string")
	}
	if !strings.Contains(html, title) {
		t.Error("HTML should contain the special char title")
	}
}

func TestOAuthRedirectPage_LongContent(t *testing.T) {
	longTitle := strings.Repeat("A", 1000)
	longContent := strings.Repeat("B", 5000)

	html := miot.OAuthRedirectPage(longTitle, longContent, "OK", true)

	if !strings.Contains(html, longTitle) {
		t.Error("HTML should contain long title")
	}
	if !strings.Contains(html, longContent) {
		t.Error("HTML should contain long content")
	}
}

func TestOAuthRedirectPage_NonExhaustivePlaceholders(t *testing.T) {
	// Verify placeholder replacement behavior
	html := miot.OAuthRedirectPage("T", "C", "B", true)

	// These appear once and should be fully replaced
	if strings.Contains(html, "CONTENT_PLACEHOLDER") {
		t.Error("CONTENT_PLACEHOLDER should be replaced")
	}
	if strings.Contains(html, "BUTTON_PLACEHOLDER") {
		t.Error("BUTTON_PLACEHOLDER should be replaced")
	}
	if strings.Contains(html, "STATUS_PLACEHOLDER") {
		t.Error("STATUS_PLACEHOLDER should be replaced")
	}
	// Note: TITLE_PLACEHOLDER has 2 occurrences, only first is replaced
}