#include <tt_app.h>
#include <tt_lvgl.h>
#include "app_context.h"
#include "storage.h"
#include "network.h"
#include "download.h"
#include "player.h"
#include "ui.h"

#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_log.h"

static void fetch_task_fn(void* arg){
    (void)arg;
    G.fetching=true;
    ESP_LOGI(TAG,"fetch task start");
    fetch_data();
    ESP_LOGI(TAG,"fetch done seasons=%d eps=%d",G.season_cnt,G.ep_cnt);
    if(strlen(G.last_slug)>0){
        for(int i=0;i<G.ep_cnt;i++) if(strcmp(G.eps[i].slug,G.last_slug)==0){ G.cur_ep_idx=i; G.cur_season=G.eps[i].season; break; }
    }
    if(G.cur_ep_idx<0){
        int s1=-1;
        for(int i=0;i<G.ep_cnt;i++) if(G.eps[i].season==G.cur_season){ s1=i; break; }
        if(s1==-1) s1=0;
        G.cur_ep_idx=s1;
    }
    tt_lvgl_lock(portMAX_DELAY);
    if(G.ep_cnt>0 && G.cur_ep_idx>=0){
        EpInfo* ep=&G.eps[G.cur_ep_idx];
        int saved = get_saved_pos_for_slug(ep->slug);
        if(saved==0) saved = G.pos_sec;
        if(G.lbl_title) lv_label_set_text(G.lbl_title,ep->title);
        if(G.lbl_meta){
            char b[64];
            if(saved>5){
                char tbuf[16];
                fmt_time(tbuf,saved);
                snprintf(b,sizeof(b),"S%02d E%02d %s • %s",ep->season,ep->ep_num,ep->seen?"*":"",tbuf);
            } else {
                snprintf(b,sizeof(b),"S%02d E%02d %s",ep->season,ep->ep_num,ep->seen?"*":"");
            }
            lv_label_set_text(G.lbl_meta,b);
        }
        if(G.lbl_status){
            if(saved>5) lv_label_set_text(G.lbl_status,"Resume – tap Play");
            else lv_label_set_text(G.lbl_status,ep->seen?"On SD – tap Play":"Tap Play to DL");
        }
        if(G.bar) lv_bar_set_value(G.bar,0,LV_ANIM_OFF);
        if(G.lbl_time){
            if(saved>5){
                char a[16];
                fmt_time(a,saved);
                char buf[40];
                snprintf(buf,sizeof(buf),"%s / --:--",a);
                lv_label_set_text(G.lbl_time,buf);
            } else {
                lv_label_set_text(G.lbl_time,"0:00 / --:--");
            }
        }
        if(saved>0) G.pos_sec=saved;
    } else {
        if(G.lbl_status) lv_label_set_text(G.lbl_status,"No data");
    }
    tt_lvgl_unlock();
    G.fetching=false;
    G.fetch_handle=NULL;
    save_state();
    vTaskDelete(NULL);
}

static void onShow(AppHandle app, void* data, lv_obj_t* parent){
    (void)app; (void)data; (void)parent;
    memset(&G,0,sizeof(G));
    G.pos_sec=0;
    G.total_sec=0;
    G.cur_season=1;
    G.cur_ep_idx=-1;
    G.volume=80;
    G.last_pct=-1;
    G.dl_last_pct=-1;
    G.dl_expected=-1;
    ensure_dir();
    load_state();
    build_ui();
    xTaskCreate(fetch_task_fn,"dm_fetch",16384,NULL,5,&G.fetch_handle);
}

static void onHide(AppHandle app, void* data){
    (void)app; (void)data;
    save_current_ep_pos();
    tt_lvgl_lock(portMAX_DELAY);
    if(G.fetch_handle){
        vTaskDelete(G.fetch_handle);
        G.fetch_handle=NULL;
        G.fetching=false;
    }
    if(G.dl_handle){
        G.dl_cancel_req=true;
        vTaskDelay(pdMS_TO_TICKS(100));
        if(G.dl_handle){
            vTaskDelete(G.dl_handle);
            G.dl_handle=NULL;
            G.downloading=false;
            if(G.dl_overlay) hide_dl_overlay();
        }
    }
    wait_play_exit();
    close_overlay();
    if(G.dl_overlay) hide_dl_overlay();
    tt_lvgl_unlock();
    save_state();
}

int main(int argc, char* argv[]){
    (void)argc; (void)argv;
    tt_app_register((AppRegistration){ .onShow=onShow, .onHide=onHide });
    return 0;
}