import os
import yaml

from renderMD import renderMD

class Page:
    lable = ''
    url = ''
    clickable = True

    subPages = []
    sidebar = []
    parrent = None
    assets = None

    def __init__(self, item, parrent):
        self.subPages = []
        self.sidebar = []
        self.parrent = parrent

        if (parrent is None):
            root = ''
        else:
            root = parrent.url

        if (type(item) is str):
            self.lable = item
            self.url = os.path.abspath(root + '/' + item)
            self.clickable = True

        elif (type(item) is dict):
            if('url' not in item):
                if(('klickable' in item) and (item['klickable'] is False)):
                    self.url = root # still set the url for sub pages
                else:
                    self.url = root + '/' + item['lable']
            else:
                self.url = item['url']

            if(self.url == ''):
                self.url = '/'

            if(self.url[0] != '/'):
                self.url = root + '/' + self.url

            self.url = os.path.abspath(self.url)

            if('lable' not in item):
                self.lable = item['url'].split('/')[-1]
            else:
                self.lable = item['lable']
            self.lable = self.lable.replace('<', '&lt;')
            self.lable = self.lable.replace('>', '&gt;')

            if ('sub' in item):
                for subItem in item['sub']:
                    self.subPages.append(Page(subItem, self))

            if ('sidebar' in item):
                for subItem in item['sidebar']:
                    self.sidebar.append(Page(subItem, self))
            else:
                self.sidebar = []

            if ('klickable' in item):
                self.clickable = item["klickable"]

        else:
            print('ERROR: Page.__init__(): invalid index itemtype ' + type(item))

    def scan(self, srcDir):
        if ((self.parrent is None) or (self.url != self.parrent.url)):
            indexFile = os.path.abspath(srcDir + self.url + '/index.yaml')
            print(f"INFO: Page.scan(): indexFile: {indexFile}")

            index = None
            if (os.path.isfile(indexFile)):
                with open(indexFile, 'r') as file:
                    index = yaml.safe_load(file)

            if (index is not None):
                if ('subPages' in index):
                    print(f"INFO: Page.scan(): subpages found for {self.url}")
                    for item in index["subPages"]:
                        page = Page(item, self)
                        self.subPages.append(page)
                        page.scan(srcDir)

                if ('sidebar' in index):
                    print(f"INFO: Page.scan(): sidemenu found for {self.url}")
                    for item in index["sidebar"]:
                        page = Page(item, self)
                        self.sidebar.append(page)
                        page.scan(srcDir)

                if ('assets' in index):
                    print(f"INFO: Page.scan(): assets found for {self.url}")
                    self.assets = index["assets"]
                    i = 0
                    while (i < len(self.assets)):
                        if(self.assets[i][0] != '/'):
                            self.assets[i] = self.url + '/' + self.assets[i]
                        self.assets[i] = os.path.abspath(self.assets[i])
                        i += 1



    def getSidebar(self):
        if ((len(self.sidebar) == 0) and (self.parrent is not None)):
            return self.parrent.getSidebar()
        else:
            return self.sidebar

    def __str__(self):
        return self.toString(0)
    def toString(self, indents):
        indent = "   "*indents
        str =  f"{indent} - lable: {self.lable}\n"
        str += f"{indent}   url: {self.url}\n"
        if (self.clickable):
            str += f"{indent}   clickable: True\n"
        else:
            str += f"{indent}   clickable: False\n"
        if (self.assets is not None):
            str += f"{indent}   assets: {len(self.assets)}\n"
            for asset in self.assets:
                str += f"{indent}    - {asset}\n"
        if (len(self.subPages) > 0):
            str += f"{indent}   sub: {len(self.subPages)}\n"
            for page in self.subPages:
                str += page.toString(indents + 1)
        if (len(self.sidebar) > 0):
            str += f"{indent}   sidebar:\n"
            for page in self.sidebar:
                str += page.toString(indents + 1)
        return str

    def topMenuHTML(self):
        if (len(self.subPages) == 0):
            propertys = ''
            if (self.clickable):
                html = f"<span class='menuLable'><a href='{self.url}'>{self.lable}</a></span>"
            else:
                html = f"<span class='menuLable'>{self.lable}</span>"
        else:
            subicon = " <svg class='menuDropIcon' xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 10'><path d='M1,3.7L5,8L9,3.7' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' fill='none' stroke='#eee'></path></svg>"
            propertys = " data-hassub='true'"
            propertys += " class=\"sub\""
            if (self.clickable):
                html = f"<span class='menuLable'><a href='{self.url}'>{self.lable}</a>{subicon}</span><ul>"
            else:
                html = f"<span class='menuLable'>{self.lable}{subicon}</span><ul>"
            for page in self.subPages:
                html += page.topMenuHTML()
            html += "</ul>"

        return f"<li{propertys}>{html}</li>"

    def sidebarHTML(self):
        if (len(self.subPages) == 0):
            propertys = ""
            if (self.clickable):
                html = f"<span class='menuLable'><a href='{self.url}'>{self.lable}</a></span>"
            else:
                html = f"<span class='menuLable'>{self.lable}</span>"
        else:
            propertys = " data-hassub='true'"
            propertys += " class=\"sub\""
            if (self.clickable):
                html = f"<span class='menuLable'><a href='{self.url}'>{self.lable}</a></span><ul>"
            else:
                html = f"<span class='menuLable'>{self.lable}</span><ul>"
            for page in self.subPages:
                html += page.sidebarHTML()
            html += "</ul>"

        return f"<li{propertys}>{html}</li>"

    def renderPage(self, template, header, srcDir):
        html = ""

        if (os.path.isdir(srcDir + self.url)):
            if(self.url[-1] == '/'):
                srcFile = self.url + 'index.md'
            else:
                srcFile = self.url + '/index.md'
        elif (len(self.url.split('.')) > 1 and len(self.url.split('.')[-1]) < 5):
            srcFile = '.'.join(self.url.split('.')[0:-1]) + '.md'
        else:
            srcFile = self.url + '.md'

        if(not os.path.isfile(srcDir + srcFile)):
            print(f"ERROR: faild to find srouce file for page {self.lable} ({self.url})")
        else:
            print('md: ' + srcFile)

            if(len(self.getSidebar()) != 0):
                sidebar = '<aside><nav><ul id="sidemenu">'
                for item in self.getSidebar():
                    sidebar += item.sidebarHTML()
                sidebar += '</ul></nav></aside>'
            else:
                sidebar = ""

            html = template.render(
                header = header,
                sidebar = sidebar,
                body = renderMD(srcDir + srcFile)
            )

        return html