import os
import gradio.routes
import gradio.utils
from modules import shared, theme
from modules.paths import script_path, data_path
import modules.scripts

def webpath(fn):
    if fn.startswith(script_path):
        web_path = os.path.relpath(fn, script_path).replace('\\', '/')
    else:
        web_path = os.path.abspath(fn)
    return f'file={web_path}?{os.path.getmtime(fn)}'


def html_head():
    head = ''
    main = ['script.js']
    for js in main:
        script_js = os.path.join(script_path, "javascript", js)
        head += f'<script type="text/javascript" src="{webpath(script_js)}"></script>\n'
    added = []
    for script in modules.scripts.list_scripts("javascript", ".js"):
        if script.filename in main:
            continue
        head += f'<script type="text/javascript" src="{webpath(script.path)}"></script>\n'
        added.append(script.path)
    for script in modules.scripts.list_scripts("javascript", ".mjs"):
        head += f'<script type="module" src="{webpath(script.path)}"></script>\n'
        added.append(script.path)
    added = [a.replace(script_path, '').replace('\\', '/') for a in added]
    # log.debug(f'Adding JS scripts: {added}')
    return head


def html_body():
    body = ''
    inline = ''
    if shared.opts.theme_style != 'Auto':
        inline += f"set_theme('{shared.opts.theme_style.lower()}');"
    body += f'<script type="text/javascript">{inline}</script>\n'
    return body


def html_css(is_builtin: bool):
    added = []

    def stylesheet(fn):
        added.append(fn)
        return f'<link rel="stylesheet" property="stylesheet" href="{webpath(fn)}">'

    css = 'sdnext.css' if is_builtin else 'base.css'
    head = stylesheet(os.path.join(script_path, 'javascript', css))
    for cssfile in modules.scripts.list_files_with_name("style.css"):
        if not os.path.isfile(cssfile):
            continue
        head += stylesheet(cssfile)
    if shared.opts.gradio_theme in theme.list_builtin_themes():
        head += stylesheet(os.path.join(script_path, "javascript", f"{shared.opts.gradio_theme}.css"))
    if os.path.exists(os.path.join(data_path, "user.css")):
        head += stylesheet(os.path.join(data_path, "user.css"))
    added = [a.replace(script_path, '').replace('\\', '/') for a in added]
    # log.debug(f'Adding CSS stylesheets: {added}')
    return head


def reload_javascript():
    is_builtin = theme.reload_gradio_theme()
    head = html_head()
    css = html_css(is_builtin)
    body = html_body()

    def template_response(*args, **kwargs):
        res = shared.GradioTemplateResponseOriginal(*args, **kwargs)
        res.body = res.body.replace(b'</head>', f'{head}</head>'.encode("utf8"))
        res.body = res.body.replace(b'</body>', f'{css}{body}</body>'.encode("utf8"))
        res.init_headers()
        return res

    gradio.routes.templates.TemplateResponse = template_response


def setup_ui_api(app):
    from pydantic import BaseModel, Field # pylint: disable=no-name-in-module
    from typing import List

    class QuicksettingsHint(BaseModel): # pylint: disable=too-few-public-methods
        name: str = Field(title="Name of the quicksettings field")
        label: str = Field(title="Label of the quicksettings field")

    def quicksettings_hint():
        return [QuicksettingsHint(name=k, label=v.label) for k, v in shared.opts.data_labels.items()]

    app.add_api_route("/internal/quicksettings-hint", quicksettings_hint, methods=["GET"], response_model=List[QuicksettingsHint])
    app.add_api_route("/internal/ping", lambda: {}, methods=["GET"])


if not hasattr(shared, 'GradioTemplateResponseOriginal'):
    shared.GradioTemplateResponseOriginal = gradio.routes.templates.TemplateResponse