#![allow(clippy::missing_errors_doc)]
#![allow(clippy::unnecessary_struct_initialization)]
#![allow(clippy::unused_async)]

use loco_rs::prelude::*;
use sea_orm::{ActiveModelTrait, EntityTrait, IntoActiveModel, QueryOrder, Set};
use serde::{Deserialize, Serialize};

use crate::models::_entities::site_settings::{self, ActiveModel, Entity, Model};

#[derive(Clone, Debug, Default, Deserialize, Serialize)]
pub struct SiteSettingsPayload {
    #[serde(default, alias = "siteName")]
    pub site_name: Option<String>,
    #[serde(default, alias = "siteShortName")]
    pub site_short_name: Option<String>,
    #[serde(default, alias = "siteUrl")]
    pub site_url: Option<String>,
    #[serde(default, alias = "siteTitle")]
    pub site_title: Option<String>,
    #[serde(default, alias = "siteDescription")]
    pub site_description: Option<String>,
    #[serde(default, alias = "heroTitle")]
    pub hero_title: Option<String>,
    #[serde(default, alias = "heroSubtitle")]
    pub hero_subtitle: Option<String>,
    #[serde(default, alias = "ownerName")]
    pub owner_name: Option<String>,
    #[serde(default, alias = "ownerTitle")]
    pub owner_title: Option<String>,
    #[serde(default, alias = "ownerBio")]
    pub owner_bio: Option<String>,
    #[serde(default, alias = "ownerAvatarUrl")]
    pub owner_avatar_url: Option<String>,
    #[serde(default, alias = "socialGithub")]
    pub social_github: Option<String>,
    #[serde(default, alias = "socialTwitter")]
    pub social_twitter: Option<String>,
    #[serde(default, alias = "socialEmail")]
    pub social_email: Option<String>,
    #[serde(default)]
    pub location: Option<String>,
    #[serde(default, alias = "techStack")]
    pub tech_stack: Option<Vec<String>>,
}

fn normalize_optional_string(value: Option<String>) -> Option<String> {
    value.and_then(|item| {
        let trimmed = item.trim().to_string();
        if trimmed.is_empty() {
            None
        } else {
            Some(trimmed)
        }
    })
}

impl SiteSettingsPayload {
    fn apply(self, item: &mut ActiveModel) {
        if let Some(site_name) = self.site_name {
            item.site_name = Set(normalize_optional_string(Some(site_name)));
        }
        if let Some(site_short_name) = self.site_short_name {
            item.site_short_name = Set(normalize_optional_string(Some(site_short_name)));
        }
        if let Some(site_url) = self.site_url {
            item.site_url = Set(normalize_optional_string(Some(site_url)));
        }
        if let Some(site_title) = self.site_title {
            item.site_title = Set(normalize_optional_string(Some(site_title)));
        }
        if let Some(site_description) = self.site_description {
            item.site_description = Set(normalize_optional_string(Some(site_description)));
        }
        if let Some(hero_title) = self.hero_title {
            item.hero_title = Set(normalize_optional_string(Some(hero_title)));
        }
        if let Some(hero_subtitle) = self.hero_subtitle {
            item.hero_subtitle = Set(normalize_optional_string(Some(hero_subtitle)));
        }
        if let Some(owner_name) = self.owner_name {
            item.owner_name = Set(normalize_optional_string(Some(owner_name)));
        }
        if let Some(owner_title) = self.owner_title {
            item.owner_title = Set(normalize_optional_string(Some(owner_title)));
        }
        if let Some(owner_bio) = self.owner_bio {
            item.owner_bio = Set(normalize_optional_string(Some(owner_bio)));
        }
        if let Some(owner_avatar_url) = self.owner_avatar_url {
            item.owner_avatar_url = Set(normalize_optional_string(Some(owner_avatar_url)));
        }
        if let Some(social_github) = self.social_github {
            item.social_github = Set(normalize_optional_string(Some(social_github)));
        }
        if let Some(social_twitter) = self.social_twitter {
            item.social_twitter = Set(normalize_optional_string(Some(social_twitter)));
        }
        if let Some(social_email) = self.social_email {
            item.social_email = Set(normalize_optional_string(Some(social_email)));
        }
        if let Some(location) = self.location {
            item.location = Set(normalize_optional_string(Some(location)));
        }
        if let Some(tech_stack) = self.tech_stack {
            item.tech_stack = Set(Some(serde_json::json!(tech_stack)));
        }
    }
}

fn default_payload() -> SiteSettingsPayload {
    SiteSettingsPayload {
        site_name: Some("InitCool".to_string()),
        site_short_name: Some("Termi".to_string()),
        site_url: Some("https://termi.dev".to_string()),
        site_title: Some("InitCool - 终端风格的内容平台".to_string()),
        site_description: Some("一个基于终端美学的个人内容站，记录代码、设计和生活。".to_string()),
        hero_title: Some("欢迎来到我的极客终端博客".to_string()),
        hero_subtitle: Some("这里记录技术、代码和生活点滴".to_string()),
        owner_name: Some("InitCool".to_string()),
        owner_title: Some("前端开发者 / 技术博主".to_string()),
        owner_bio: Some(
            "一名热爱技术的前端开发者，专注于构建高性能、优雅的用户界面。相信代码不仅是工具，更是一种艺术表达。"
                .to_string(),
        ),
        owner_avatar_url: None,
        social_github: Some("https://github.com".to_string()),
        social_twitter: Some("https://twitter.com".to_string()),
        social_email: Some("mailto:hello@termi.dev".to_string()),
        location: Some("Hong Kong".to_string()),
        tech_stack: Some(vec![
            "Astro".to_string(),
            "Svelte".to_string(),
            "Tailwind CSS".to_string(),
            "TypeScript".to_string(),
        ]),
    }
}

async fn load_current(ctx: &AppContext) -> Result<Model> {
    if let Some(settings) = Entity::find()
        .order_by_asc(site_settings::Column::Id)
        .one(&ctx.db)
        .await?
    {
        return Ok(settings);
    }

    let mut item = ActiveModel {
        id: Set(1),
        ..Default::default()
    };
    default_payload().apply(&mut item);
    Ok(item.insert(&ctx.db).await?)
}

#[debug_handler]
pub async fn show(State(ctx): State<AppContext>) -> Result<Response> {
    format::json(load_current(&ctx).await?)
}

#[debug_handler]
pub async fn update(
    State(ctx): State<AppContext>,
    Json(params): Json<SiteSettingsPayload>,
) -> Result<Response> {
    let current = load_current(&ctx).await?;
    let mut item = current.into_active_model();
    params.apply(&mut item);
    format::json(item.update(&ctx.db).await?)
}

pub fn routes() -> Routes {
    Routes::new()
        .prefix("api/site_settings/")
        .add("/", get(show))
        .add("/", put(update))
        .add("/", patch(update))
}