// shared database related code
package models

import (
	"database/sql"
	"time"

	_ "github.com/mattn/go-sqlite3"
)

// TODO this is in flux; might want SignupNote and UserNote structs separately
type AdminNote struct {
	ID    int64
	Admin string
	Note  string
	When  time.Time
}

type SignupDecision string

const (
	SignupAccepted SignupDecision = "accepted"
	SignupRejected SignupDecision = "rejected"
)

// TODO add DecisionTime column to DB
// TODO add DecisionBy column to DB
// TODO add CleanEmail column to DB
type TownSignup struct {
	ID      int64
	Created time.Time
	Email   string
	How     string
	Why     string
	Links   string

	Notes        []AdminNote
	Decision     SignupDecision
	DecisionTime time.Time
	DecidedBy    string
	CleanEmail   string
}

func (s *TownSignup) Insert(db *sql.DB) error {
	stmt, err := db.Prepare(`
		INSERT INTO signups (created, email, how, why, links) VALUES(
			?, ?, ?, ?, ?
		) RETURNING id
	`)
	if err != nil {
		return err
	}

	result, err := stmt.Exec(s.Created.Unix(), s.Email, s.How, s.Why, s.Links)
	if err != nil {
		return err
	}

	defer stmt.Close()

	liid, err := result.LastInsertId()
	if err != nil {
		return err
	}

	s.ID = liid

	return nil
}

func (s *TownSignup) All(db *sql.DB) ([]*TownSignup, error) {
	// TODO notes; circle back once can author them
	rows, err := db.Query(`
		SELECT 
			id, created, email, how, why, links
		FROM signups WHERE decision = ""`)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	out := []*TownSignup{}
	for rows.Next() {
		su := &TownSignup{}
		if err = rows.Scan(
			&su.ID,
			&su.Created,
			&su.Email,
			&su.How,
			&su.Why,
			&su.Links,
		); err != nil {
			return nil, err
		}

		// TODO fetch notes
		out = append(out, su)
	}

	return out, nil
}

// below is all TODO and unused rn
type UserState string

const (
	StateActive  = "active"
	StateTempBan = "temp_banned"
	StateBan     = "banned"
)

type TownAccount struct {
	ID       int64
	Emails   []string
	Username string
	Signup   int
	Notes    []AdminNote
	State    UserState
	Admin    bool
}