// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
// SPDX-License-Identifier: Apache-2.0

package api // import "miniflux.app/v2/internal/api"

import (
	"net/http"
	"runtime"

	"miniflux.app/v2/internal/http/response/json"
	"miniflux.app/v2/internal/storage"
	"miniflux.app/v2/internal/version"
	"miniflux.app/v2/internal/worker"

	"github.com/gorilla/mux"
)

type handler struct {
	store  *storage.Storage
	pool   *worker.Pool
	router *mux.Router
}

// Serve declares API routes for the application.
func Serve(router *mux.Router, store *storage.Storage, pool *worker.Pool) {
	handler := &handler{store, pool, router}

	sr := router.PathPrefix("/v1").Subrouter()
	middleware := newMiddleware(store)
	sr.Use(middleware.handleCORS)
	sr.Use(middleware.apiKeyAuth)
	sr.Use(middleware.basicAuth)
	sr.Methods(http.MethodOptions)
	sr.HandleFunc("/users", handler.createUser).Methods(http.MethodPost)
	sr.HandleFunc("/users", handler.users).Methods(http.MethodGet)
	sr.HandleFunc("/users/{userID:[0-9]+}", handler.userByID).Methods(http.MethodGet)
	sr.HandleFunc("/users/{userID:[0-9]+}", handler.updateUser).Methods(http.MethodPut)
	sr.HandleFunc("/users/{userID:[0-9]+}", handler.removeUser).Methods(http.MethodDelete)
	sr.HandleFunc("/users/{userID:[0-9]+}/mark-all-as-read", handler.markUserAsRead).Methods(http.MethodPut)
	sr.HandleFunc("/users/{username}", handler.userByUsername).Methods(http.MethodGet)
	sr.HandleFunc("/me", handler.currentUser).Methods(http.MethodGet)
	sr.HandleFunc("/categories", handler.createCategory).Methods(http.MethodPost)
	sr.HandleFunc("/categories", handler.getCategories).Methods(http.MethodGet)
	sr.HandleFunc("/categories/{categoryID}", handler.updateCategory).Methods(http.MethodPut)
	sr.HandleFunc("/categories/{categoryID}", handler.removeCategory).Methods(http.MethodDelete)
	sr.HandleFunc("/categories/{categoryID}/mark-all-as-read", handler.markCategoryAsRead).Methods(http.MethodPut)
	sr.HandleFunc("/categories/{categoryID}/feeds", handler.getCategoryFeeds).Methods(http.MethodGet)
	sr.HandleFunc("/categories/{categoryID}/refresh", handler.refreshCategory).Methods(http.MethodPut)
	sr.HandleFunc("/categories/{categoryID}/entries", handler.getCategoryEntries).Methods(http.MethodGet)
	sr.HandleFunc("/categories/{categoryID}/entries/{entryID}", handler.getCategoryEntry).Methods(http.MethodGet)
	sr.HandleFunc("/discover", handler.discoverSubscriptions).Methods(http.MethodPost)
	sr.HandleFunc("/feeds", handler.createFeed).Methods(http.MethodPost)
	sr.HandleFunc("/feeds", handler.getFeeds).Methods(http.MethodGet)
	sr.HandleFunc("/feeds/counters", handler.fetchCounters).Methods(http.MethodGet)
	sr.HandleFunc("/feeds/refresh", handler.refreshAllFeeds).Methods(http.MethodPut)
	sr.HandleFunc("/feeds/{feedID}/refresh", handler.refreshFeed).Methods(http.MethodPut)
	sr.HandleFunc("/feeds/{feedID}", handler.getFeed).Methods(http.MethodGet)
	sr.HandleFunc("/feeds/{feedID}", handler.updateFeed).Methods(http.MethodPut)
	sr.HandleFunc("/feeds/{feedID}", handler.removeFeed).Methods(http.MethodDelete)
	sr.HandleFunc("/feeds/{feedID}/icon", handler.getIconByFeedID).Methods(http.MethodGet)
	sr.HandleFunc("/feeds/{feedID}/mark-all-as-read", handler.markFeedAsRead).Methods(http.MethodPut)
	sr.HandleFunc("/export", handler.exportFeeds).Methods(http.MethodGet)
	sr.HandleFunc("/import", handler.importFeeds).Methods(http.MethodPost)
	sr.HandleFunc("/feeds/{feedID}/entries", handler.getFeedEntries).Methods(http.MethodGet)
	sr.HandleFunc("/feeds/{feedID}/entries/{entryID}", handler.getFeedEntry).Methods(http.MethodGet)
	sr.HandleFunc("/entries", handler.getEntries).Methods(http.MethodGet)
	sr.HandleFunc("/entries", handler.setEntryStatus).Methods(http.MethodPut)
	sr.HandleFunc("/entries/{entryID}", handler.getEntry).Methods(http.MethodGet)
	sr.HandleFunc("/entries/{entryID}", handler.updateEntry).Methods(http.MethodPut)
	sr.HandleFunc("/entries/{entryID}/bookmark", handler.toggleBookmark).Methods(http.MethodPut)
	sr.HandleFunc("/entries/{entryID}/save", handler.saveEntry).Methods(http.MethodPost)
	sr.HandleFunc("/entries/{entryID}/fetch-content", handler.fetchContent).Methods(http.MethodGet)
	sr.HandleFunc("/flush-history", handler.flushHistory).Methods(http.MethodPut, http.MethodDelete)
	sr.HandleFunc("/icons/{iconID}", handler.getIconByIconID).Methods(http.MethodGet)
	sr.HandleFunc("/version", handler.versionHandler).Methods(http.MethodGet)
}

func (h *handler) versionHandler(w http.ResponseWriter, r *http.Request) {
	json.OK(w, r, &versionResponse{
		Version:   version.Version,
		Commit:    version.Commit,
		BuildDate: version.BuildDate,
		GoVersion: runtime.Version(),
		Compiler:  runtime.Compiler,
		Arch:      runtime.GOARCH,
		OS:        runtime.GOOS,
	})
}