// Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.

package compliancepage

import (
	"net/http"

	"go.probo.inc/probo/pkg/coredata"
	"go.probo.inc/probo/pkg/trust"
)

type Handler struct {
	trustService *trust.Service
}

func NewHandler(trustService *trust.Service) *Handler {
	return &Handler{trustService: trustService}
}

func (h *Handler) HandleLLMsTxt(w http.ResponseWriter, r *http.Request) {
	tc := CompliancePageFromContext(r.Context())
	if tc == nil {
		http.Error(w, "not found", http.StatusNotFound)
		return
	}

	w.Header().Set("Content-Type", "text/plain; charset=utf-8")

	scope := coredata.NewScopeFromObjectID(tc.ID)

	if err := h.trustService.RenderCompliancePageMarkdown(r.Context(), w, tc.ID, scope); err != nil {
		http.Error(w, "internal server error", http.StatusInternalServerError)
	}
}

func (h *Handler) HandleRobotsTxt(w http.ResponseWriter, r *http.Request) {
	tc := CompliancePageFromContext(r.Context())
	if tc == nil {
		http.Error(w, "not found", http.StatusNotFound)
		return
	}

	baseURL := CompliancePageBaseURLFromContext(r.Context())
	if baseURL == nil {
		http.Error(w, "not found", http.StatusNotFound)
		return
	}

	w.Header().Set("Content-Type", "text/plain; charset=utf-8")

	if err := h.trustService.RenderRobotsTxt(r.Context(), w, tc.SearchEngineIndexing, *baseURL); err != nil {
		http.Error(w, "internal server error", http.StatusInternalServerError)
	}
}

func (h *Handler) HandleSitemap(w http.ResponseWriter, r *http.Request) {
	tc := CompliancePageFromContext(r.Context())
	if tc == nil {
		http.Error(w, "not found", http.StatusNotFound)
		return
	}

	baseURL := CompliancePageBaseURLFromContext(r.Context())
	if baseURL == nil {
		http.Error(w, "not found", http.StatusNotFound)
		return
	}

	w.Header().Set("Content-Type", "application/xml; charset=utf-8")

	scope := coredata.NewScopeFromObjectID(tc.ID)

	if err := h.trustService.RenderSitemap(r.Context(), w, tc.ID, scope, *baseURL); err != nil {
		http.Error(w, "internal server error", http.StatusInternalServerError)
	}
}