import logging
import shutil
from pathlib import Path
import os

from .config import SOURCE_DIRECTORY, DIST_DIRECTORY, STATIC_DIRECTORY


logger = logging.getLogger("stsg.build")


def copy_static():
    src = str(Path(SOURCE_DIRECTORY, STATIC_DIRECTORY))
    dst = str(Path(DIST_DIRECTORY, STATIC_DIRECTORY))

    if not os.path.exists(src):
        logger.warn("The static folder '%s' wasn't defined.", src)
        return

    logger.info("copying static files from '%s' to '%r'", src, dst) 

    os.makedirs(dst, exist_ok=True)

    for root, dirs, files in os.walk(src):
        if any(p.startswith(".") for p in Path(root).parts):
            continue 

        # Compute relative path from the source root
        rel_path = os.path.relpath(root, src)
        dest_dir = os.path.join(dst, rel_path)

        os.makedirs(dest_dir, exist_ok=True)
  
        for file in files:
            if file.startswith("."):
                continue

            src_file = os.path.join(root, file)
            dest_file = os.path.join(dest_dir, file)
            shutil.copy2(src_file, dest_file) 


class Context:
    def __init__(self, root: str = SOURCE_DIRECTORY):
        self.file = Path(root, "index.html")

        current_root = Path(root)
        while current_root.parts and self.file is None:
            current_file = Path(current_root, "index.html")
            if current_file.exists() and current_file.is_file: 
                self.file = current_file

            current_root = current_root.parent

        if self.file is None:
            logger.error("couldn't find context for %s", root)
            exit(1)
        logger.info("%s found context %r", root, str(self.file))

    def get_text(self, placeholder_values: dict):
        text = self.file.read_text()

        for key, value in placeholder_values.items():
            text = text.replace(f"<{key}/>", value)
            text = text.replace(f"<{key} />", value)
 
        return text


def build():
    logger.info("building static page")
    copy_static() 

    context = Context()
    print(context.get_text({
        "content": """
            <h1 class="title">Hello World</h1>
            <p class="subtitle">My first website with <strong>Bulma</strong>!</p>
        """
    }))