#define _POSIX_C_SOURCE 200809L
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <gtk-3.0/gtk/gtk.h>
#include <gs.h>
#include "log.h"
#include "config.h"
#include "login_window.h"

static GtkWidget *window, *scrolled, *list_box;
static GSClient *gs_client = NULL;

static gchar *html_to_pango(const char *content)
{
    gchar *result1, *result2;
    GRegex *regex_tag, *regex_attr;
    GError *error = NULL;

    if (!content) {
        return NULL;
    }

    regex_tag = g_regex_new(
            "(<p>|</p>|<br></br>|<br/>|<br />)", G_REGEX_CASELESS, 0, &error);
    if (!regex_tag) {
        log_msg(LOG_WARNING, "html_to_pango", error->message);
        g_free(error);
        return NULL;
    }

    result1 = g_regex_replace(regex_tag, content, -1, 0, "", 0, &error);
    if (!result1) {
        log_msg(LOG_WARNING, "html_to_pango", error->message);
        g_free(error);
        return NULL;
    }

    regex_attr =
            g_regex_new("(class|target|rel|data-user|data-tag)=\"(.|\n)*?\"",
                    G_REGEX_CASELESS, 0, &error);
    if (!regex_attr) {
        log_msg(LOG_WARNING, "html_to_pango", error->message);
        g_free(error);
        return NULL;
    }

    result2 = g_regex_replace(regex_attr, result1, -1, 0, "", 0, &error);
    free(result1);
    if (!result1) {
        log_msg(LOG_WARNING, "html_to_pango", error->message);
        g_free(error);
        return NULL;
    }

    return result2;
}

static gboolean timeline_loaded(gpointer data)
{
    struct gs_timeline *t = data;
    for (size_t i = 0; i < t->size; i++) {
        GtkBuilder *post_builder;
        GObject *post_box, *post_content_label;
        GObject *display_name, *username;
        GObject *replies_count, *reblogs_count, *favourites_count;
        GObject *avatar;
        GdkPixbuf *avatar_pixbuf;
        char *content_markup;

        content_markup = html_to_pango(t->statuses[i]->content);
        if (!content_markup) {
            continue;
        }

        post_builder = gtk_builder_new_from_file("data/post.ui");

        post_box = gtk_builder_get_object(post_builder, "post_box");
        post_content_label =
                gtk_builder_get_object(post_builder, "content_text");
        gtk_label_set_markup(GTK_LABEL(post_content_label), content_markup);

        avatar = gtk_builder_get_object(post_builder, "avatar");
        avatar_pixbuf =
                gdk_pixbuf_new_from_file_at_size("data/avi.png", 40, 40, NULL);
        gtk_image_set_from_pixbuf(GTK_IMAGE(avatar), avatar_pixbuf);

        display_name = gtk_builder_get_object(post_builder, "display_name");
        gtk_label_set_text(
                GTK_LABEL(display_name), t->statuses[i]->account->display_name);

        username = gtk_builder_get_object(post_builder, "username");
        gtk_label_set_text(
                GTK_LABEL(username), t->statuses[i]->account->username);

        replies_count = gtk_builder_get_object(post_builder, "replies_count");
        gchar *repc = g_strdup_printf("%d", t->statuses[i]->replies_count);
        gtk_label_set_text(GTK_LABEL(replies_count), repc);
        g_free(repc);

        reblogs_count = gtk_builder_get_object(post_builder, "reblogs_count");
        gchar *rebc = g_strdup_printf("%d", t->statuses[i]->reblogs_count);
        gtk_label_set_text(GTK_LABEL(reblogs_count), rebc);
        g_free(rebc);

        favourites_count =
                gtk_builder_get_object(post_builder, "favourites_count");
        gchar *fc = g_strdup_printf("%d", t->statuses[i]->favourites_count);
        gtk_label_set_text(GTK_LABEL(favourites_count), fc);
        g_free(fc);

        gtk_list_box_prepend(GTK_LIST_BOX(list_box), GTK_WIDGET(post_box));
        gtk_widget_show_all(GTK_WIDGET(post_box));
    }
    /* gtk_spinner_stop(GTK_SPINNER(spinner)); */
    gs_timeline_free(t);
    return G_SOURCE_REMOVE;
}

static gpointer load_timeline(gpointer data)
{
    struct gs_timeline *t;

    t = gs_timeline_get(gs_client, NULL, NULL, NULL, 20);
    if (!t) {
        log_msg(LOG_WARNING, "load_timeline", "failed");
        return NULL;
    }

    gdk_threads_add_idle(timeline_loaded, t);
    return NULL;
}

void create_main_window(GtkApplication *app, gpointer user_data)
{
    gs_client = user_data;

    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_window_set_application(GTK_WINDOW(window), GTK_APPLICATION(app));
    gtk_window_set_title(GTK_WINDOW(window), "ap_client");
    gtk_window_set_default_size(GTK_WINDOW(window), 800, 600);
    gtk_container_set_border_width(GTK_CONTAINER(window), 10);

    scrolled = gtk_scrolled_window_new(NULL, NULL);
    gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled),
            GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);

    list_box = gtk_list_box_new();
    gtk_widget_set_valign(GTK_WIDGET(list_box), GTK_ALIGN_CENTER);
    gtk_widget_set_halign(GTK_WIDGET(list_box), GTK_ALIGN_CENTER);

    /* spinner = gtk_spinner_new(); */
    /* gtk_spinner_start(GTK_SPINNER(spinner)); */
    /* gtk_container_add(GTK_CONTAINER(list_box), spinner); */

    gtk_container_add(GTK_CONTAINER(window), scrolled);
    gtk_container_add(GTK_CONTAINER(scrolled), list_box);
    gtk_widget_show_all(window);

    
    if (!gs_auth_is_logged_in(client)) {
        create_login_dialog();
    }
    if (!gs_auth_is_logged_in(client)) {
        log_msg(LOG_ERROR, "create_main_window",
                "login is required to view timeline");
    }

    g_thread_new("load_timeline_thread", &load_timeline, client);
}