package server

import (
	"github.com/labstack/echo/v4"
	"github.com/thomiceli/opengist/internal/config"
	"github.com/thomiceli/opengist/internal/index"
	"github.com/thomiceli/opengist/internal/web/context"
	"github.com/thomiceli/opengist/internal/web/handler"
	"github.com/thomiceli/opengist/public"
	"net/http"
	"os"
	"path"
	"path/filepath"
	"strings"
	"time"
)

func (s *Server) setupRoutes() {
	r := NewRouter(s.echo.Group(""))

	// Web based routes
	{

		r.GET("/", handler.Create, logged)
		r.POST("/", handler.ProcessCreate, logged)
		r.POST("/preview", handler.Preview, logged)

		r.GET("/healthcheck", handler.Healthcheck)
		r.GET("/metrics", handler.Metrics)

		r.GET("/register", handler.Register)
		r.POST("/register", handler.ProcessRegister)
		r.GET("/login", handler.Login)
		r.POST("/login", handler.ProcessLogin)
		r.GET("/logout", handler.Logout)
		r.GET("/oauth/:provider", handler.Oauth)
		r.GET("/oauth/:provider/callback", handler.OauthCallback)
		r.GET("/oauth/:provider/unlink", handler.OauthUnlink, logged)
		r.POST("/webauthn/bind", handler.BeginWebAuthnBinding, logged)
		r.POST("/webauthn/bind/finish", handler.FinishWebAuthnBinding, logged)
		r.POST("/webauthn/login", handler.BeginWebAuthnLogin)
		r.POST("/webauthn/login/finish", handler.FinishWebAuthnLogin)
		r.POST("/webauthn/assertion", handler.BeginWebAuthnAssertion, inMFASession)
		r.POST("/webauthn/assertion/finish", handler.FinishWebAuthnAssertion, inMFASession)
		r.GET("/mfa", handler.Mfa, inMFASession)
		r.POST("/mfa/totp/assertion", handler.AssertTotp, inMFASession)

		r.GET("/settings", handler.UserSettings, logged)
		r.POST("/settings/email", handler.EmailProcess, logged)
		r.DELETE("/settings/account", handler.AccountDeleteProcess, logged)
		r.POST("/settings/ssh-keys", handler.SshKeysProcess, logged)
		r.DELETE("/settings/ssh-keys/:id", handler.SshKeysDelete, logged)
		r.DELETE("/settings/passkeys/:id", handler.PasskeyDelete, logged)
		r.PUT("/settings/password", handler.PasswordProcess, logged)
		r.PUT("/settings/username", handler.UsernameProcess, logged)
		r.GET("/settings/totp/generate", handler.BeginTotp, logged)
		r.POST("/settings/totp/generate", handler.FinishTotp, logged)
		r.DELETE("/settings/totp", handler.DisableTotp, logged)
		r.POST("/settings/totp/regenerate", handler.RegenerateTotpRecoveryCodes, logged)

		g2 := r.SubGroup("/admin-panel")
		{
			g2.Use(adminPermission)
			g2.GET("", handler.AdminIndex)
			g2.GET("/users", handler.AdminUsers)
			g2.POST("/users/:user/delete", handler.AdminUserDelete)
			g2.GET("/gists", handler.AdminGists)
			g2.POST("/gists/:gist/delete", handler.AdminGistDelete)
			g2.GET("/invitations", handler.AdminInvitations)
			g2.POST("/invitations", handler.AdminInvitationsCreate)
			g2.POST("/invitations/:id/delete", handler.AdminInvitationsDelete)
			g2.POST("/sync-fs", handler.AdminSyncReposFromFS)
			g2.POST("/sync-db", handler.AdminSyncReposFromDB)
			g2.POST("/gc-repos", handler.AdminGcRepos)
			g2.POST("/sync-previews", handler.AdminSyncGistPreviews)
			g2.POST("/reset-hooks", handler.AdminResetHooks)
			g2.POST("/index-gists", handler.AdminIndexGists)
			g2.GET("/configuration", handler.AdminConfig)
			g2.PUT("/set-config", handler.AdminSetConfig)
		}

		if config.C.HttpGit {
			r.Any("/init/*", handler.GitHttp, GistNewPushSoftInit)
		}

		r.GET("/all", handler.AllGists, checkRequireLogin)

		if index.Enabled() {
			r.GET("/search", handler.Search, checkRequireLogin)
		} else {
			r.GET("/search", handler.AllGists, checkRequireLogin)
		}

		r.GET("/:user", handler.AllGists, checkRequireLogin)
		r.GET("/:user/liked", handler.AllGists, checkRequireLogin)
		r.GET("/:user/forked", handler.AllGists, checkRequireLogin)

		g3 := r.SubGroup("/:user/:gistname")
		{
			g3.Use(makeCheckRequireLogin(true), GistInit)
			g3.GET("", handler.GistIndex)
			g3.GET("/rev/:revision", handler.GistIndex)
			g3.GET("/revisions", handler.Revisions)
			g3.GET("/archive/:revision", handler.DownloadZip)
			g3.POST("/visibility", handler.EditVisibility, logged, writePermission)
			g3.POST("/delete", handler.DeleteGist, logged, writePermission)
			g3.GET("/raw/:revision/:file", handler.RawFile)
			g3.GET("/download/:revision/:file", handler.DownloadFile)
			g3.GET("/edit", handler.Edit, logged, writePermission)
			g3.POST("/edit", handler.ProcessCreate, logged, writePermission)
			g3.POST("/like", handler.Like, logged)
			g3.GET("/likes", handler.Likes, checkRequireLogin)
			g3.POST("/fork", handler.Fork, logged)
			g3.GET("/forks", handler.Forks, checkRequireLogin)
			g3.PUT("/checkbox", handler.Checkbox, logged, writePermission)
		}
	}

	customFs := os.DirFS(filepath.Join(config.GetHomeDir(), "custom"))
	r.GET("/assets/*", func(ctx *context.OGContext) error {
		if _, err := public.Files.Open(path.Join("assets", ctx.Param("*"))); !s.dev && err == nil {
			ctx.Response().Header().Set("Cache-Control", "public, max-age=31536000")
			ctx.Response().Header().Set("Expires", time.Now().AddDate(1, 0, 0).Format(http.TimeFormat))

			return echo.WrapHandler(http.FileServer(http.FS(public.Files)))(ctx)
		}

		// if the custom file is an .html template, render it
		if strings.HasSuffix(ctx.Param("*"), ".html") {
			if err := ctx.HTML_(ctx.Param("*")); err != nil {
				return ctx.NotFound("Page not found")
			}
			return nil
		}

		return echo.WrapHandler(http.StripPrefix("/assets/", http.FileServer(http.FS(customFs))))(ctx)
	})

	// Git HTTP routes
	if config.C.HttpGit {
		r.Any("/:user/:gistname/*", handler.GitHttp, GistSoftInit)
	}

	r.Any("/*", noRouteFound)
}

// Router wraps echo.Group to provide custom Handler support
type Router struct {
	*echo.Group
}

// NewRouter creates a new Router instance
func NewRouter(g *echo.Group) *Router {
	return &Router{Group: g}
}

// SubGroup returns a new Router group with the given prefix and middleware
func (r *Router) SubGroup(prefix string, m ...Middleware) *Router {
	// Convert middleware only when creating group
	echoMiddleware := make([]echo.MiddlewareFunc, len(m))
	for i, mw := range m {
		mw := mw // capture for closure
		echoMiddleware[i] = func(next echo.HandlerFunc) echo.HandlerFunc {
			return Chain(func(c *context.OGContext) error {
				return next(c)
			}, mw).toEchoHandler()
		}
	}
	return NewRouter(r.Group.Group(prefix, echoMiddleware...))
}

// Route registration methods
func (r *Router) GET(path string, h Handler, m ...Middleware) {
	r.Group.GET(path, Chain(h, m...).toEchoHandler())
}

func (r *Router) POST(path string, h Handler, m ...Middleware) {
	r.Group.POST(path, Chain(h, m...).toEchoHandler())
}

func (r *Router) PUT(path string, h Handler, m ...Middleware) {
	r.Group.PUT(path, Chain(h, m...).toEchoHandler())
}

func (r *Router) DELETE(path string, h Handler, m ...Middleware) {
	r.Group.DELETE(path, Chain(h, m...).toEchoHandler())
}

func (r *Router) PATCH(path string, h Handler, m ...Middleware) {
	r.Group.PATCH(path, Chain(h, m...).toEchoHandler())
}

func (r *Router) Any(path string, h Handler, m ...Middleware) {
	r.Group.Any(path, Chain(h, m...).toEchoHandler())
}

// Use registers middleware for the entire router group
func (r *Router) Use(middleware ...Middleware) {
	for _, m := range middleware {
		m := m // capture for closure
		r.Group.Use(func(next echo.HandlerFunc) echo.HandlerFunc {
			return Chain(func(c *context.OGContext) error {
				return next(c)
			}, m).toEchoHandler()
		})
	}
}