import markdown
import os
import time
import shutil
import subprocess
from html import escape


from const import *

def getTemplateHTML(name):
    html = ""
    with open(os.path.join(templates, name), "r") as file:
        html = file.read();
    return html

def lowerHeadings(html):
    # This is a dumb lol
    return html.replace("<h6>", "<p>")\
                .replace("</h6>", "</p>")\
                .replace("<h5>", "<h6>")\
                .replace("</h5>", "</h6>")\
                .replace("<h4>", "<h5>")\
                .replace("</h4>", "</h5>")\
                .replace("<h3>", "<h4>")\
                .replace("</h3>", "</h4>")\
                .replace("<h2>", "<h3>")\
                .replace("</h2>", "</h3>")\
                .replace("<h1>", "<h2>")\
                .replace("</h1>", "</h2>")\

def listPages():
    return [
        (lambda path: 
            (lambda content: 
                (lambda timestamp: 
                    (lambda name: {
                        "source_file" : path,
                        "source_content" : content,
                        "html" : markdown.markdown("\n".join(content.split("\n...\n"))),
                        "title" : content.split("\n")[0].replace("# ", ""),
                        "summary" : lowerHeadings(markdown.markdown(content.split("\n...\n")[0])),
                        "timestamp" : timestamp,
                        "date": time.strftime(date_format, time.localtime(timestamp)),
                        "name" : name,
                        "url" : f"entries/{name}.html"
                    })(".".join(p.split(".")[:-1]))
                )(os.stat(path).st_mtime)
            )(open(path, "r").read())
        )(os.path.join(source, p)) for p in os.listdir(source)
    ]


def formatEntry(content, page):
        return content.replace("%date%", page["date"])\
            .replace("%name%", page["name"])\
            .replace("%time%", str(page["timestamp"]))\
            .replace("%source%", site_index + page["source_file"])\
            .replace("%url%", site_index + page["url"])

def make():

    try:
        os.makedirs(os.path.join(dist, "entries"))
    except:
        print("Already have content")
    try:
        shutil.rmtree(os.path.join(dist, "src"))
    except:
        pass
    try:
        shutil.rmtree(os.path.join(dist, "images"))
    except:
        pass
    try:
        shutil.copytree(source, os.path.join(dist, "src"))
    except:
        pass
    try:
        shutil.copytree(images, os.path.join(dist, "images"))
    except:
        pass
    
    pages = listPages()

    pages = sorted(pages, key=lambda p: p["timestamp"])

    summary_templ = getTemplateHTML("summary.html")

    summariesHTML = getTemplateHTML("about.html") + "\n<hr><ul>\n"+ "\n".join(
                    [
                        formatEntry(summary_templ, page)
                            .replace(
                                "%content%", 
                                page["summary"] + (f"<a href={page['url']}>read more...</a>" if len(page["source_content"].split("\n...\n")) > 1 else "")
                            ).replace("%title%", page["title"])
                
                        for page in pages
                    ][: : -1]
    ) + "</ul>"

    entry_templ = getTemplateHTML("page.html")
    

    for page in pages:
        with open(os.path.join(dist, page["url"]), "w") as entry:
            entry.write(
                        formatEntry(
                                entry_templ,
                                page
                            )
                        .replace("%content%", page["html"])
                    )

        

    index_templ = getTemplateHTML("page.html")

    with open(os.path.join(dist, "index.html"), "w") as index:
        index.write(
                    index_templ.replace("%content%", summariesHTML)
                )


    item_templ = getTemplateHTML("item.xml")
    rss_templ = getTemplateHTML("rss.xml")
    itemsXML = "\n".join(
                [
                    formatEntry(item_templ, page).replace("%content%", page["html"])
                    for page in pages
                    ][: : -1]
            )

    with open(os.path.join(dist, "rss.xml"), "w") as index:
        index.write(
                    rss_templ.replace("%items%", itemsXML)
                )

    for f in os.listdir(resources):
        shutil.copy(os.path.join(resources, f), dist)

    print(f"built in {len(pages)} pages")


def get_repos():
    repos = []
    if os.path.exists("git_repos.txt"):
        with open("git_repos.txt", "r") as file:
            repos = [l for l in file.readlines() if l.startswith("http")]
    return repos

def list_files(path):
    files = []
    dirlist = [path]

    while len(dirlist) > 0:
        for (dirpath, dirnames, filenames) in os.walk(dirlist.pop()):
            dirlist.extend(dirnames)
            files.extend(map(lambda n: os.path.join(*n), zip([dirpath] * len(filenames), filenames)))
            print(len(files))
    
    return files

def linkify_path(path):
    output = []
    full = "/"
    for s in path.split("/"):
        full += s + "/"
        output.append(f"<a href='{full}'>{s}</a>")
    return "/" + "/".join(output)



def format_file(page_templ, content, v):
        return page_templ.replace("%title%", v["name"])\
                    .replace("%up%", v["above"])\
                    .replace("%filename%", linkify_path(v["filename"]))\
                    .replace("%commit%", str(v["commit"]))\
                    .replace("%url%", str(v["url"]))\
                    .replace("%content%", content)


def traverse_repo(path, name, commit, url):
    page_templ = getTemplateHTML("page.html")
    page_templ = page_templ.replace("%content%", getTemplateHTML("file.html"))

    date = time.strftime(date_format, time.localtime())
    footer = f"<p class='small'>This repo has been compiled for web view on <b>{date}</b> and may not be the latest version</p>"
 
    for root, dirs, files in os.walk(path):
        filename = "/".join(root.split("/")[1:])
        index_content = "<ul>"

        index_content += f"<a href='../'><li>../</li></a>"
        for d in dirs:
            if d.startswith("."):
                shutil.rmtree(os.path.join(root, d))
            else:
                index_content += f"<a href='{d}'><li>{d}/</li></a>"

        for file_name in files:
            if file_name.startswith("."):
                os.remove(f)
            else:
                f = os.path.join(root, file_name)
                
                try:
                    with open(f, "r") as file:
                        content = file.read()

                    if f.endswith(".md"):
                        content = markdown.markdown(content)
                        content = content.replace("\"/", "\"/" + filename + "/")
                    else:
                        content = "<p><pre><code>" + escape(content) + "</code></p></pre>"

                    content += footer 
                    content = format_file(page_templ, content, {
                            "name": name,
                            "commit": commit,
                            "url": url,
                            "filename": "/".join(f.split("/")[1:]),
                            "above": "/".join(f.split("/")[1:-1]),
                        })

                    with open(f + ".html", "w") as file:
                        file.write(content)

                    if file_name != "README.md":
                        os.remove(f)

                    index_content += f"<a href='{file_name}.html'><li>{file_name}</li></a>"
                except UnicodeDecodeError:
                    index_content += f"<a href='{file_name}'><li>{file_name}</li></a>"

        index_content += "</ul><hr>"
    
        readme = os.path.join(root, "README.md")
        if os.path.exists(readme):
            with open(readme) as file:
                readme_content = markdown.markdown(file.read())
                #massive hack
                readme_content = readme_content.replace("\"/", "\"/" + filename + "/")
                
                index_content += readme_content

            index_content += "<hr>"

        index_content += footer 
        index_content = format_file(page_templ, index_content, {
                        "name": name,
                        "commit": commit,
                        "url": url,
                        "filename": filename,
                        "above": "/".join(root.split("/")[1:-1]),
                    })

        with open(os.path.join(root,"index.html"), "w") as file:
            file.write(index_content)

def create_repos():
    try:
        shutil.rmtree(os.path.join(dist, "git"))
    except:
        pass

    git_path = os.path.join(dist, "git")
    try:
        os.makedirs(git_path)
    except:
        print("Already have git path")

    for repo in get_repos():
        repo = repo.strip()
        print(repo)
        name = ".".join(repo.split("/")[-1].split(".")[:-1])
        os.system(f"mkdir -p /tmp/repos/{name} ;\
                cd /tmp/repos/{name} ;\
                git pull || git clone {repo} /tmp/repos/{name}")

        os.system(f"cp -r /tmp/repos/{name} {dist}/git")

        command = subprocess.run(f"cd /tmp/repos/{name} && git log --pretty=format:'%h%x09%an%x09%ad%x09%s' --no-decorate -1", stdout=subprocess.PIPE, shell=True)

        commit = command.stdout.decode()

        traverse_repo(os.path.join(git_path, name), name, commit, repo)

make() 
create_repos()