use crate::{
    error::{Error, OptionExt},
    extensions::{ProfileExt, SubmissionExt},
    images::{BannerImage, IconImage, ThumbnailImage},
};
use hyaenidae_profiles::store::{File, Profile, Submission};
use hyaenidae_toolkit::{IndicatorColor, Thumbnail, Tile};
use uuid::Uuid;

pub struct OwnedProfileView {
    pub(crate) profile: Profile,
    pub(crate) icon: Option<File>,
    pub(crate) banner: Option<File>,
}

pub struct ProfileView<'a> {
    pub(crate) profile: &'a Profile,
    pub(crate) icon: Option<&'a File>,
    pub(crate) banner: Option<&'a File>,
}

pub struct OwnedSubmissionView {
    pub(crate) submission: Submission,
    pub(crate) files: Vec<File>,
    pub(crate) current_file: Option<Uuid>,
}

pub struct SubmissionView<'a> {
    pub(crate) author: &'a Profile,
    pub(crate) author_icon: Option<&'a File>,
    pub(crate) submission: &'a Submission,
    pub(crate) files: Vec<&'a File>,
}

impl<'a> SubmissionView<'a> {
    pub(crate) fn profile(&self) -> ProfileView<'a> {
        ProfileView {
            profile: self.author,
            icon: self.author_icon,
            banner: None,
        }
    }

    pub(crate) fn thumbnail(&self) -> Option<Thumbnail> {
        let file = self.files.get(0)?;
        let key = file.pictrs_key()?;

        let image = ThumbnailImage::new(key, &self.submission.title_text());

        let thumb = Thumbnail::new(image, &self.submission.view_path())
            .title(&self.submission.title_text())
            .author(&self.author.name(), &self.author.view_path());

        if self.files.len() > 1 {
            Some(thumb.indicator(&format!("+{}", self.files.len() - 1), IndicatorColor::White))
        } else {
            Some(thumb)
        }
    }
}

impl OwnedSubmissionView {
    pub(crate) fn tiles(&self) -> Vec<Tile> {
        self.files
            .iter()
            .enumerate()
            .filter_map(|(index, file)| {
                let key = file.pictrs_key()?;
                let title = format!("{} file {}", self.submission.title_text(), index + 1);

                if self
                    .current_file
                    .map(|f_id| f_id == file.id())
                    .unwrap_or(false)
                {
                    Some(
                        Tile::new(IconImage::new(key, &title))
                            .title(&title)
                            .link(&self.submission.file_page_link(index))
                            .indicator("", IndicatorColor::Gray),
                    )
                } else {
                    Some(
                        Tile::new(IconImage::new(key, &title))
                            .title(&title)
                            .link(&self.submission.file_page_link(index)),
                    )
                }
            })
            .collect()
    }
}

impl OwnedProfileView {
    pub(crate) fn heading(&self) -> hyaenidae_toolkit::Profile {
        ProfileView {
            profile: &self.profile,
            icon: self.icon.as_ref(),
            banner: self.banner.as_ref(),
        }
        .heading()
    }

    pub(crate) fn icon(&self) -> hyaenidae_toolkit::Icon {
        ProfileView {
            profile: &self.profile,
            icon: self.icon.as_ref(),
            banner: self.banner.as_ref(),
        }
        .icon()
    }

    pub(crate) fn from_id(
        profile_id: Uuid,
        store: &hyaenidae_profiles::store::Store,
    ) -> Result<Self, Error> {
        let profile = store.profiles.by_id(profile_id)?.req()?;

        let icon = if let Some(icon) = profile.icon() {
            store.files.by_id(icon)?
        } else {
            None
        };
        let banner = if let Some(banner) = profile.banner() {
            store.files.by_id(banner)?
        } else {
            None
        };

        Ok(OwnedProfileView {
            profile,
            icon,
            banner,
        })
    }
}

impl<'a> ProfileView<'a> {
    pub(crate) fn heading(&self) -> hyaenidae_toolkit::Profile {
        let heading =
            hyaenidae_toolkit::Profile::new(self.profile.full_handle(), self.profile.view_path());

        let heading = if let Some(display_name) = self.profile.display_name() {
            heading.display_name(display_name)
        } else {
            heading
        };

        let heading = if let Some(description) = self.profile.description_text() {
            heading.description(description)
        } else {
            heading
        };

        let heading = if let Some(icon) = self.icon_key() {
            heading.icon_image(IconImage::new(
                icon,
                &format!("{}'s icon", self.profile.name()),
            ))
        } else {
            heading
        };

        if let Some(banner) = self.banner_key() {
            heading.banner_image(BannerImage::new(
                banner,
                &format!("{}'s banner", self.profile.name()),
            ))
        } else {
            heading
        }
    }

    pub(crate) fn icon(&self) -> hyaenidae_toolkit::Icon {
        let icon = hyaenidae_toolkit::Icon::new(self.profile.view_path());

        if let Some(key) = self.icon_key() {
            icon.image(IconImage::new(
                key,
                &format!("{}'s icon", self.profile.name()),
            ))
        } else {
            icon
        }
    }

    fn icon_key(&self) -> Option<&str> {
        self.icon.and_then(|icon| icon.pictrs_key())
    }

    fn banner_key(&self) -> Option<&str> {
        self.banner.and_then(|banner| banner.pictrs_key())
    }
}