package config

import (
	"strings"
	"testing"

	"git.yeij.top/AskaEth/Cyrene_v2/internal/platform"
)

// TestLoad_DataDirPlatformSentinel 覆盖数据目录的两种取法（design/13 §2，
// 裁决 12.4.2 + 15.4.1）：未配置走默认 `./data`；显式哨兵 `platform` 才走
// 平台标准数据目录；显式路径原样保留。
func TestLoad_DataDirPlatformSentinel(t *testing.T) {
	t.Setenv("JWT_SECRET", strings.Repeat("s", 40))
	unsetEnvForTest(t, "DATA_DIR")

	cfg, err := Load("")
	if err != nil {
		t.Fatalf("Load() error: %v", err)
	}
	if cfg.DataDir != "./data" {
		t.Errorf("DataDir = %q, want ./data (unset keeps the historic default)", cfg.DataDir)
	}

	t.Setenv("DATA_DIR", "platform")
	cfg, err = Load("")
	if err != nil {
		t.Fatalf("Load() with sentinel error: %v", err)
	}
	if want := platform.DefaultDataDir(); cfg.DataDir != want {
		t.Errorf("DataDir = %q, want the platform standard dir %q", cfg.DataDir, want)
	}

	// 显式路径（含显式 ./data）不被改写。
	for _, p := range []string{"./data", "/var/lib/cyrene"} {
		t.Setenv("DATA_DIR", p)
		cfg, err = Load("")
		if err != nil {
			t.Fatalf("Load() with DATA_DIR=%q error: %v", p, err)
		}
		if cfg.DataDir != p {
			t.Errorf("DataDir = %q, want %q verbatim", cfg.DataDir, p)
		}
	}
}

// TestAdminPathPrefix 覆盖安全入口前缀的归一化（裁决 1.6 / 16.4.7，
// design/07 §0.2）：默认 `admin` → `/admin`，自定义 `xxx/admin` →
// `/xxx/admin`（即 `host/xxx/admin` 形态），非法值一律挂回默认。
func TestAdminPathPrefix(t *testing.T) {
	want := map[string]string{
		"":            "/admin",
		"admin":       "/admin",
		"/admin":      "/admin",
		"/admin/":     "/admin",
		"xxx/admin":   "/xxx/admin",
		"/xxx/admin/": "/xxx/admin",
		" a / b ":     "/a/b",
		"../etc":      "/admin",
		"a/../b":      "/admin",
		"a//b":        "/admin",
		"a?b":         "/admin",
		"a#b":         "/admin",
		"   ":         "/admin",
	}
	for in, exp := range want {
		cfg := ServerConfig{AdminPath: in}
		if got := cfg.AdminPathPrefix(); got != exp {
			t.Errorf("AdminPath %q → %q, want %q", in, got, exp)
		}
	}
}