package analyzers

import (
	"bytes"
	"encoding/json"
	"io"
	"net/http"
	"sort"

	"github.com/fatih/color"

	"github.com/trufflesecurity/trufflehog/v3/pkg/context"
)

type (
	Analyzer interface {
		Type() AnalyzerType
		Analyze(ctx context.Context, credentialInfo map[string]string) (*AnalyzerResult, error)
	}

	AnalyzerType int

	// AnalyzerResult is the output of analysis.
	AnalyzerResult struct {
		AnalyzerType       AnalyzerType
		Bindings           []Binding
		UnboundedResources []Resource
		Metadata           map[string]any
	}

	Resource struct {
		Name               string
		FullyQualifiedName string
		Type               string
		Metadata           map[string]any
		Parent             *Resource
	}

	Permission struct {
		Value  string
		Parent *Permission
	}

	Binding struct {
		Resource   Resource
		Permission Permission
		Condition  string
	}
)

type PermissionType string

const (
	READ       PermissionType = "Read"
	WRITE      PermissionType = "Write"
	READ_WRITE PermissionType = "Read & Write"
	NONE       PermissionType = "None"
	ERROR      PermissionType = "Error"

	FullAccess string = "full_access"
)

const (
	AnalyzerTypeInvalid AnalyzerType = iota
	AnalyzerTypeAirbrake
	AnalyzerAnthropic
	AnalyzerTypeAsana
	AnalyzerTypeBitbucket
	AnalyzerTypeDockerHub
	AnalyzerTypeElevenLabs
	AnalyzerTypeGitHub
	AnalyzerTypeGitLab
	AnalyzerTypeHuggingFace
	AnalyzerTypeMailchimp
	AnalyzerTypeMailgun
	AnalyzerTypeMySQL
	AnalyzerTypeOpenAI
	AnalyzerTypeOpsgenie
	AnalyzerTypePostgres
	AnalyzerTypePostman
	AnalyzerTypeSendgrid
	AnalyzerTypeShopify
	AnalyzerTypeSlack
	AnalyzerTypeSourcegraph
	AnalyzerTypeSquare
	AnalyzerTypeStripe
	AnalyzerTypeTwilio
	AnalyzerTypePrivateKey
	AnalyzerTypeNotion
	AnalyzerTypeDigitalOcean
	AnalyzerTypePlanetScale
	AnalyzerTypeAirtableOAuth
	AnalyzerTypeAirtablePat
	AnalyzerTypeGroq
	AnalyzerTypeLaunchDarkly
	AnalyzerTypeFigma
	AnalyzerTypePlaid
	AnalyzerTypeNetlify
	AnalyzerTypeFastly
	AnalyzerTypeMonday
	AnalyzerTypeDatadog
	AnalyzerTypeNgrok
	AnalyzerTypeMux
	AnalyzerTypePosthog
	AnalyzerTypeDropbox
	AnalyzerTypeDataBricks
	AnalyzerTypeJira
	// Add new items here with AnalyzerType prefix
)

// analyzerTypeStrings maps the enum to its string representation.
var analyzerTypeStrings = map[AnalyzerType]string{
	AnalyzerTypeInvalid:       "Invalid",
	AnalyzerTypeAirbrake:      "Airbrake",
	AnalyzerAnthropic:         "Anthropic",
	AnalyzerTypeAsana:         "Asana",
	AnalyzerTypeBitbucket:     "Bitbucket",
	AnalyzerTypeDigitalOcean:  "DigitalOcean",
	AnalyzerTypeDockerHub:     "DockerHub",
	AnalyzerTypeElevenLabs:    "ElevenLabs",
	AnalyzerTypeGitHub:        "GitHub",
	AnalyzerTypeGitLab:        "GitLab",
	AnalyzerTypeHuggingFace:   "HuggingFace",
	AnalyzerTypeMailchimp:     "Mailchimp",
	AnalyzerTypeMailgun:       "Mailgun",
	AnalyzerTypeMySQL:         "MySQL",
	AnalyzerTypeOpenAI:        "OpenAI",
	AnalyzerTypeOpsgenie:      "Opsgenie",
	AnalyzerTypePostgres:      "Postgres",
	AnalyzerTypePostman:       "Postman",
	AnalyzerTypeSendgrid:      "Sendgrid",
	AnalyzerTypeShopify:       "Shopify",
	AnalyzerTypeSlack:         "Slack",
	AnalyzerTypeSourcegraph:   "Sourcegraph",
	AnalyzerTypeSquare:        "Square",
	AnalyzerTypeStripe:        "Stripe",
	AnalyzerTypeTwilio:        "Twilio",
	AnalyzerTypePrivateKey:    "PrivateKey",
	AnalyzerTypeNotion:        "Notion",
	AnalyzerTypePlanetScale:   "PlanetScale",
	AnalyzerTypeAirtableOAuth: "AirtableOAuth",
	AnalyzerTypeAirtablePat:   "AirtablePat",
	AnalyzerTypeGroq:          "Groq",
	AnalyzerTypeLaunchDarkly:  "LaunchDarkly",
	AnalyzerTypeFigma:         "Figma",
	AnalyzerTypePlaid:         "Plaid",
	AnalyzerTypeNetlify:       "Netlify",
	AnalyzerTypeFastly:        "Fastly",
	AnalyzerTypeMonday:        "Monday",
	AnalyzerTypeDatadog:       "Datadog",
	AnalyzerTypeNgrok:         "Ngrok",
	AnalyzerTypeMux:           "Mux",
	AnalyzerTypePosthog:       "Posthog",
	AnalyzerTypeDropbox:       "Dropbox",
	AnalyzerTypeDataBricks:    "DataBricks",
	AnalyzerTypeJira:          "Jira",
	// Add new mappings here
}

// String method to get the string representation of an AnalyzerType.
func (a AnalyzerType) String() string {
	if str, ok := analyzerTypeStrings[a]; ok {
		return str
	}
	return "Unknown"
}

// AvailableAnalyzers returns a sorted slice of AnalyzerType strings, skipping "Invalid".
func AvailableAnalyzers() []string {
	var analyzerStrings []string

	// Iterate through the map to collect all string values except "Invalid".
	for typ, str := range analyzerTypeStrings {
		if typ != AnalyzerTypeInvalid {
			analyzerStrings = append(analyzerStrings, str)
		}
	}

	// Sort the slice alphabetically.
	sort.Strings(analyzerStrings)

	return analyzerStrings
}

type PermissionStatus struct {
	Value   bool
	IsError bool
}

type HttpStatusTest struct {
	URL     string
	Method  string
	Payload map[string]interface{}
	Params  map[string]string
	Valid   []int
	Invalid []int
	Type    PermissionType
	Status  PermissionStatus
	Risk    string
}

func (h *HttpStatusTest) RunTest(headers map[string]string) error {
	// If body data, marshal to JSON
	var data io.Reader
	if h.Payload != nil {
		jsonData, err := json.Marshal(h.Payload)
		if err != nil {
			return err
		}
		data = bytes.NewBuffer(jsonData)
	}

	// Create new HTTP request
	client := &http.Client{}
	req, err := http.NewRequest(h.Method, h.URL, data)
	if err != nil {
		return err
	}

	// Add custom headers if provided
	for key, value := range headers {
		req.Header.Set(key, value)
	}

	// Execute HTTP Request
	resp, err := client.Do(req)
	if err != nil {
		return err
	}
	defer func() { _ = resp.Body.Close() }()

	// Check response status code
	switch {
	case StatusContains(resp.StatusCode, h.Valid):
		h.Status.Value = true
	case StatusContains(resp.StatusCode, h.Invalid):
		h.Status.Value = false
	default:
		h.Status.IsError = true
	}
	return nil
}

type Scope struct {
	Name  string
	Tests []interface{}
}

func StatusContains(status int, vals []int) bool {
	for _, v := range vals {
		if status == v {
			return true
		}
	}
	return false
}

func GetWriterFromStatus(status PermissionType) func(a ...interface{}) string {
	switch status {
	case READ:
		return color.New(color.FgYellow).SprintFunc()
	case WRITE:
		return color.New(color.FgGreen).SprintFunc()
	case READ_WRITE:
		return color.New(color.FgGreen).SprintFunc()
	case NONE:
		return color.New().SprintFunc()
	case ERROR:
		return color.New(color.FgRed).SprintFunc()
	default:
		return color.New().SprintFunc()
	}
}

var GreenWriter = color.New(color.FgGreen).SprintFunc()
var YellowWriter = color.New(color.FgYellow).SprintFunc()
var RedWriter = color.New(color.FgRed).SprintFunc()
var DefaultWriter = color.New().SprintFunc()

// BindAllPermissions creates a Binding for each permission to the given
// resource.
func BindAllPermissions(r Resource, perms ...Permission) []Binding {
	bindings := make([]Binding, len(perms))
	for i, perm := range perms {
		bindings[i] = Binding{
			Resource:   r,
			Permission: perm,
		}
	}
	return bindings
}