Table user {
    id integer [primary key, increment]

    username varchar [unique, not null]
    email varchar [unique, not null]
    password_digest varchar
    role integer [not null, note: 'user role']
    created_at timestamp [default: `now()`]
    updated_at timestamp [default: `now()`]

    indexes {
        (username, email)
    }

    note: 'user registration'
}

Table profile {
    id integer [primary key, increment]
    user_id varchar(32) [not null, ref: - user.id]
    created_at timestamp
    note: 'user profile'
}

Table basic_profile {
    id integer [primary key, increment]
    profile_id varchar(32) [unique, not null, ref: - profile.id]

    avatar blob
    name varchar [not null]
    birth date [not null]
    city varchar
    state varchar
    country varchar
    skillset varchar
    career_objective text

    note: 'student basic information'
}

Table education_profile {
    id integer [primary key, increment]
    profile_id varchar(32) [not null, ref: > profile.id]

    college_name varchar
    location varchar
    degree varchar
    major varchar
    year_of_passing date

    note: 'student education experience'
}

Table experience_profile {
    id integer [primary key, increment]
    profile_id varchar(32) [not null, ref: > profile.id]

    company_name varchar
    title varchar
    location varchar
    start_date date
    end_date date
    work_description text

    note: 'student work experience'
}

Table company {
    id integer [primary key, increment]
    company_id varchar(32) [unique, not null, ref: - user.id]

    avatar blob
    name varchar
    location varchar
    description varchar
    contract_email varchar
    contract_phone varchar

    note: 'company basic information'
}

Table job {
    id integer [primary key, increment]
    company_id varchar(32) [unique, not null, ref: > company.id]

    title varchar
    created_at timestamp
    application_deadline timestamp
    location varchar
    salary float
    desc text
    category job_category

    note: 'job posts'
}

Table job_application {
    id integer [primary key, increment]
    job_id varchar(32) [not null, ref: > job.id]

    applicant_id varchar(32) [not null, ref: > profile.id, note: 'applicant id']
    resume varchar [note: 'resume local file']
    status apply_status

    created_at timestamp
    updated_at timestamp

    note: 'application'
}

Table event {
    id integer [primary key, increment]
    company_id varchar(32) [not null, ref: > company.id]

    name varchar
    description varchar
    time date
    location varchar
    eligibility eligibility_status

    created_at timestamp
    updated_at timestamp
}

Table event_regisiteration {
    id integer [primary key, increment]
    event_id varchar(32) [not null, ref: > event.id]
    applicant_id varchar(32) [not null, ref: > profile.id]

    regisitered_at timestamp
}

enum job_category {
    full_time
    part_time
    intern
    on_campus
}

enum apply_status {
    pending
    reviewed
    declined
}

enum eligibility_status {
    all
    special_major
}