#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 "auth.h"
#include "http.h"
#include "timeline.h"
#include "log.h"
#include "string-util.h"

static GtkWidget *window, *scrolled, *list_box;

static gchar *html_to_pango(const char *content)
{
    char *str1, *str2;
    gchar *result;
    GRegex *regex = NULL;
    GError *error = NULL;

    if (!content) {
        return NULL;
    }

    str1 = str_replace(content, "<p>", "");
    if (!str1) {
        log_msg(LOG_WARNING, "html_to_pango", "failed to parse html");
        return NULL;
    }
    str2 = str_replace(str1, "</p>", "");
    free(str1);
    if (!str2) {
        log_msg(LOG_WARNING, "html_to_pango", "failed to parse html");
        return NULL;
    }

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

    result = g_regex_replace(regex, str2, -1, 0, "", 0, &error);
    free(str2);
    if (!result) {
        log_msg(LOG_WARNING, "html_to_pango", error->message);
        g_free(error);
        return NULL;
    }

    return result;
}

static gboolean timeline_loaded(gpointer data)
{
    struct timeline *t = data;
    for (size_t i = 0; i < t->size; i++) {
        GtkBuilder *post_builder;
        GObject *post_box, *post_content_label;
        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);

        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)); */
    timeline_free(t);
    return G_SOURCE_REMOVE;
}

static gpointer load_timeline(gpointer data)
{
    struct timeline *t;
    t = get_timeline(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_timeline_window(GtkApplication *app, gpointer 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);

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