import jinja2
import os
import shutil
import json
import sys
import time
import tomllib
import math

print("Load config")
with open("config.toml", 'rb') as file:
    cfg = tomllib.load(file)["render"]
show_st = cfg["show_st"]
clean = cfg["clean"]
page_split = cfg["page_split"]

print("Init build")

if (clean):
    if os.path.exists("build"):
        shutil.rmtree("build")
    os.mkdir("build")

if not os.path.exists("theme"):
    print("Connot find any themes")
    sys.exit(1)


def render_func(filepath, extpath, **kwargs):
    if (show_st):
        print(f'    render "{extpath}"')
    with open(filepath, 'r') as file:
        result = jinja2.Template(file.read()).render(**kwargs)
    with open(extpath, 'w') as file:
        file.write(result)


if not (os.path.exists("build/home.html")):
    print("Render home page")
    with open("dump/forums.json", 'r') as file:
        json_res = json.load(file)
    render_args = {
        "forums": [
            {
                "url": "/topics/"+str(i["id"])+"/1.html",
                "name": i["name"],
                "description": i["description"]
            } for i in json_res
        ]
    }
    render_func("theme/home.html", "build/index.html", **render_args)

if not (os.path.exists("build/users")):
    print("Render users")
    os.mkdir("build/users")
    with open("dump/users.json", 'r') as file:
        user_json_res = json.load(file)
    count = 0
    print(f"Users count: {len(user_json_res)}")
    for ids, context in user_json_res.items():
        count += 1
        render_func("theme/user.html", "build/users/"+str(ids)+".html", user={
            "name": context["name"],
            "description": context["description"],
            "reg_time": time.strftime("%Y-%m-%d", time.localtime(context["time"]))
        })
        if not (show_st):
            if (count % 50 == 0):
                print(f"    render {count}", end='\r')
    print(f"    render {count}")

if not (os.path.exists("build/topics")):
    print("Render topics")
    os.mkdir("build/topics")
    with open("dump/forums.json", 'r') as file:
        json_res = json.load(file)
    count = 0
    for r in os.listdir("dump/forums"):
        count += 1
        u_cfg = []
        with open("dump/forums/"+r, 'r') as file:
            strs = file.readlines()
        n_count = 0
        for i in strs:
            n_count += 1
            line_st = i.rstrip("\r\n").lstrip("\r\n")
            if (line_st == ""):
                continue
            line_json = json.loads(line_st)
            u_cfg.append(
                {
                    "id": n_count,
                    "name": line_json["name"],
                    "time": time.strftime("%Y-%m-%d", time.localtime(line_json["time"])),
                    "url": "/posts/"+str(line_json["id"])+"/1.html"
                }
            )
        ids = int(r.split(".")[0])
        os.mkdir("build/topics/" + str(ids))
        for page_counts in range(1, math.ceil(len(strs)/page_split)+1):
            render_func("theme/topics.html", "build/topics/" +
                        str(ids)+"/"+str(page_counts)+".html", topics={
                            "topics": u_cfg[page_split*(page_counts-1):page_split*page_counts],
                            "from_forum": list(filter(lambda d: d.get('id') == ids, json_res))[0]["name"],
                            "from_url": "/home.html"
                        }, page={
                            "now": page_counts,
                            "count": math.ceil(len(strs)/page_split),
                            "first_url": "/topics/"+str(ids)+"/"+str(1)+".html",
                            "prev_url": ("/topics/"+str(ids)+"/"+str(page_counts-1)+".html") if (page_counts > 1) else "",
                            "next_url": ("/topics/"+str(ids)+"/"+str(page_counts+1)+".html") if ((page_counts) < math.ceil(len(strs)/page_split)) else "",
                            "end_url": "/topics/"+str(ids)+"/"+str(math.ceil(len(strs)/page_split))+".html"
                        })
        if not (show_st):
            print(f"    render {count}", end='\r')
    print(f"    render {count}")

if not (os.path.exists("build/posts")):
    print("Render posts")
    os.mkdir("build/posts")
    n_count = 0
    for r in os.listdir("dump/forums"):
        with open("dump/forums/"+r, 'r') as file:
            strs = file.readlines()
        page_ncount = 0
        for i in strs:
            page_ncount += 1
            line_st = i.rstrip("\r\n").lstrip("\r\n")
            if (line_st == ""):
                continue
            n_json = json.loads(line_st)
            n_id = n_json["id"]
            if not (os.path.exists("dump/topics/"+str(n_id)+".manifest")):
                continue
            with open("dump/topics/"+str(n_id)+".manifest", 'r') as file:
                strs_m = file.readlines()
            u_cfg = []
            t_count = 0
            for j in strs_m:
                n_count += 1
                t_count += 1
                m_st = j.rstrip("\r\n").lstrip("\r\n")
                if (m_st == ""):
                    continue
                m_json = json.loads(m_st)
                ids = n_id
                u_cfg.append({
                    "id": t_count,
                    "text": m_json["text"],
                    "postername": m_json["poster_name"],
                    "posterurl": "/users/"+str(m_json["poster_id"])+".html"
                })
                if (n_count % 10 == 0):
                    print(f"    render {n_count}", end='\r')
            os.mkdir("build/posts/" + str(ids))
            for page_counts in range(1, math.ceil(len(u_cfg)/page_split)+1):
                render_func("theme/posts.html", "build/posts/" +
                            str(ids)+"/"+str(page_counts)+".html", posts={
                                "posts": u_cfg[page_split*(page_counts-1):page_split*page_counts],
                                "from_topic": n_json["name"],
                                "from_url": "/topics/"+str(r.split(".")[0])+"/"+str((page_ncount-1)//page_split+1)+".html"
                            }, page={
                                "now": page_counts,
                                "count": math.ceil(len(u_cfg)/page_split),
                                "first_url": "/posts/"+str(ids)+"/"+str(1)+".html",
                                "prev_url": ("/posts/"+str(ids)+"/"+str(page_counts-1)+".html") if (page_counts > 1) else "",
                                "next_url": ("/posts/"+str(ids)+"/"+str(page_counts+1)+".html") if ((page_counts) < math.ceil(len(u_cfg)/page_split)) else "",
                                "end_url": "/posts/"+str(ids)+"/"+str(math.ceil(len(u_cfg)/page_split))+".html"
                            })
    print(f"    render {n_count}")