use super::footnote_definition::RenderRealFootnoteDefinition;
use super::macros::render;
use super::render_context::RenderContext;
use super::GlobalSettings;
use super::PageHeader;
use super::RenderDocumentElement;
use crate::error::CustomError;
use crate::intermediate::get_web_path;
use crate::intermediate::IPage;
use serde::Serialize;

#[derive(Debug, Serialize)]
#[serde(tag = "type")]
#[serde(rename = "page")]
pub(crate) struct RenderPage {
    global_settings: GlobalSettings,

    page_header: Option<PageHeader>,

    /// The title that will be shown visibly on the page.
    title: Option<String>,

    self_link: Option<String>,

    children: Vec<RenderDocumentElement>,

    footnotes: Vec<RenderRealFootnoteDefinition>,
}

render!(RenderPage, IPage, original, render_context, {
    let css_files = vec![
        get_web_path(
            render_context.config,
            render_context.output_root_directory,
            render_context.output_file,
            "stylesheet/reset.css",
        )?,
        get_web_path(
            render_context.config,
            render_context.output_root_directory,
            render_context.output_file,
            "stylesheet/main.css",
        )?,
    ];
    let js_files = vec![get_web_path(
        render_context.config,
        render_context.output_root_directory,
        render_context.output_file,
        "blog_post.js",
    )?];
    let global_settings = GlobalSettings::new(original.title.clone(), css_files, js_files);
    let page_header = PageHeader::new(
        render_context.config.get_site_title().map(str::to_string),
        Some(get_web_path(
            render_context.config,
            render_context.output_root_directory,
            render_context.output_file,
            "",
        )?),
    );
    let link_to_blog_post = get_web_path(
        render_context.config,
        render_context.output_root_directory,
        render_context.output_file,
        render_context
            .output_file
            .strip_prefix(render_context.output_root_directory)?,
    )?;

    let children = {
        let mut children = Vec::new();

        for child in original.children.iter() {
            children.push(RenderDocumentElement::new(render_context.clone(), child)?);
        }

        children
    };

    let footnotes = {
        let mut ret = Vec::new();

        for footnote in original.footnotes.iter() {
            ret.push(RenderRealFootnoteDefinition::new(
                render_context.clone(),
                footnote,
            )?);
        }

        ret
    };

    let ret = RenderPage {
        global_settings,
        page_header: Some(page_header),
        title: original.title.clone(),
        self_link: Some(link_to_blog_post),
        children,
        footnotes,
    };
    Ok(ret)
});