import { db } from "./schema";

interface ProfileTranslation {
  name: string;
  job_title: string;
  summary: string | null;
  location: string | null;
}

interface Profile extends ProfileTranslation {
  email: string;
  phone: string | null;
  website: string | null;
  github_url: string | null;
  linkedin_url: string | null;
  avatar_url: string | null;
}

interface ExperienceTranslation {
  company_name: string;
  role: string;
  description: string | null;
  location: string | null;
}

interface Experience extends ExperienceTranslation {
  id: number; // Add ID for ordering
  start_date: string;
  end_date: string | null;
  company_url: string | null;
  display_order: number; // Re-added
}

interface EducationTranslation {
  institution: string;
  degree: string;
  description: string | null;
}

interface Education extends EducationTranslation {
  id: number; // Add ID for ordering
  start_date: string;
  end_date: string | null;
  institution_url: string | null;
  display_order: number; // Re-added
}

interface SkillTranslation {
  name: string;
  category_display: string | null;
}

interface Skill extends SkillTranslation {
  category: string;
  icon: string | null;
  display_order: number;
}

interface ProjectTranslation {
  name: string;
  description: string | null;
}

interface Project extends ProjectTranslation {
  id: number;
  project_url: string | null;
  image_url: string | null;
  tech_stack: string | null;
  display_order: number;
}

export function getProfile(lang: string): Profile | null {
  const profile = db.query(`
    SELECT p.email, p.phone, p.website, p.github_url, p.linkedin_url, p.avatar_url,
           pt.name, pt.job_title, pt.summary, pt.location
    FROM profile p
    JOIN profile_translations pt ON p.id = pt.profile_id
    WHERE pt.language_code = $lang
  `).get({ $lang: lang }) as Profile | null;
  return profile;
}

export function getExperience(lang: string): Experience[] {
  const experience = db.query(`
    SELECT e.id, e.start_date, e.end_date, e.company_url, e.display_order,
           et.company_name, et.role, et.description, et.location
    FROM experience e
    JOIN experience_translations et ON e.id = et.experience_id
    WHERE et.language_code = $lang
    ORDER BY e.display_order ASC
  `).all({ $lang: lang }) as Experience[];
  return experience;
}

export function getEducation(lang: string): Education[] {
  const education = db.query(`
    SELECT e.id, e.start_date, e.end_date, e.institution_url, e.display_order,
           et.institution, et.degree, et.description
    FROM education e
    JOIN education_translations et ON e.id = et.education_id
    WHERE et.language_code = $lang
    ORDER BY e.display_order ASC
  `).all({ $lang: lang }) as Education[];
  return education;
}

export function getProjects(lang: string): Project[] {
  const projects = db.query(`
    SELECT p.id, p.project_url, p.image_url, p.tech_stack, p.display_order,
           pt.name, pt.description
    FROM projects p
    JOIN project_translations pt ON p.id = pt.project_id
    WHERE pt.language_code = $lang
    ORDER BY p.display_order ASC
  `).all({ $lang: lang }) as Project[];
  return projects;
}

export function getSkills(lang: string): Skill[] {
  const skills = db.query(`
    SELECT s.category, s.icon, s.display_order,
           st.name, st.category_display
    FROM skills s
    JOIN skill_translations st ON s.id = st.skill_id
    WHERE st.language_code = $lang
    ORDER BY s.display_order ASC, s.category ASC, st.name ASC
  `).all({ $lang: lang }) as Skill[];
  return skills;
}

export function getAllData(lang: string) {
  return {
    profile: getProfile(lang),
    experience: getExperience(lang),
    education: getEducation(lang),
    projects: getProjects(lang),
    skills: getSkills(lang),
  };
}

// --- Admin Queries ---

export function getAdminProfile() {
    const profile = db.query(`SELECT * FROM profile WHERE id = 1`).get() as any;
    const translations = db.query(`SELECT * FROM profile_translations WHERE profile_id = 1`).all() as any[];
    
    translations.forEach(t => {
        profile[`name_${t.language_code}`] = t.name;
        profile[`job_title_${t.language_code}`] = t.job_title;
        profile[`summary_${t.language_code}`] = t.summary;
        profile[`location_${t.language_code}`] = t.location;
    });
    return profile;
}

export function getAdminExperience() {
    const exps = db.query(`SELECT e.*, MAX(e.display_order) OVER () AS max_order FROM experience e ORDER BY e.display_order ASC`).all() as any[];
    return exps.map(e => {
        const trans = db.query(`SELECT * FROM experience_translations WHERE experience_id = $id`).all({ $id: e.id }) as any[];
        trans.forEach(t => {
            e[`company_name_${t.language_code}`] = t.company_name;
            e[`role_${t.language_code}`] = t.role;
            e[`description_${t.language_code}`] = t.description;
            e[`location_${t.language_code}`] = t.location;
        });
        return e;
    });
}

export function getAdminExperienceById(id: number) {
    const e = db.query(`SELECT * FROM experience WHERE id = $id`).get({ $id: id }) as any;
    if (!e) return null;
    
    const trans = db.query(`SELECT * FROM experience_translations WHERE experience_id = $id`).all({ $id: id }) as any[];
    trans.forEach(t => {
        e[`company_name_${t.language_code}`] = t.company_name;
        e[`role_${t.language_code}`] = t.role;
        e[`description_${t.language_code}`] = t.description;
        e[`location_${t.language_code}`] = t.location;
    });
    return e;
}

export function getAdminEducation() {
    const edus = db.query(`SELECT e.*, MAX(e.display_order) OVER () AS max_order FROM education e ORDER BY e.display_order ASC`).all() as any[];
    return edus.map(e => {
        const trans = db.query(`SELECT * FROM education_translations WHERE education_id = $id`).all({ $id: e.id }) as any[];
        trans.forEach(t => {
            e[`institution_${t.language_code}`] = t.institution;
            e[`degree_${t.language_code}`] = t.degree;
            e[`description_${t.language_code}`] = t.description;
        });
        return e;
    });
}

export function getAdminEducationById(id: number) {
    const e = db.query(`SELECT * FROM education WHERE id = $id`).get({ $id: id }) as any;
    if (!e) return null;

    const trans = db.query(`SELECT * FROM education_translations WHERE education_id = $id`).all({ $id: id }) as any[];
    trans.forEach(t => {
        e[`institution_${t.language_code}`] = t.institution;
        e[`degree_${t.language_code}`] = t.degree;
        e[`description_${t.language_code}`] = t.description;
    });
    return e;
}

export function getAdminProjects() {
    const projs = db.query(`SELECT p.*, MAX(p.display_order) OVER () AS max_order FROM projects p ORDER BY p.display_order ASC`).all() as any[];
    return projs.map(p => {
        const trans = db.query(`SELECT * FROM project_translations WHERE project_id = $id`).all({ $id: p.id }) as any[];
        trans.forEach(t => {
            p[`name_${t.language_code}`] = t.name;
            p[`description_${t.language_code}`] = t.description;
        });
        return p;
    });
}

export function getAdminProjectById(id: number) {
    const p = db.query(`SELECT * FROM projects WHERE id = $id`).get({ $id: id }) as any;
    if (!p) return null;

    const trans = db.query(`SELECT * FROM project_translations WHERE project_id = $id`).all({ $id: id }) as any[];
    trans.forEach(t => {
        p[`name_${t.language_code}`] = t.name;
        p[`description_${t.language_code}`] = t.description;
    });
    return p;
}