package services

import (
	"context"
	"database/sql"
	"errors"
	"evening_detective/internal/models"

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

type Repository struct {
	db *sql.DB
}

func NewRepository() (*Repository, error) {
	db, err := sql.Open("sqlite3", "store.db")
	if err != nil {
		return nil, err
	}
	_, err = db.Exec("CREATE TABLE IF NOT EXISTS teams (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, password TEXT);")
	if err != nil {
		return nil, err
	}
	_, err = db.Exec("CREATE TABLE IF NOT EXISTS actions (id INTEGER PRIMARY KEY AUTOINCREMENT, place TEXT, teamId INTEGER);")
	if err != nil {
		return nil, err
	}
	// for tests
	// _, err = db.Exec("insert into teams (id, name, password) values (1, \"name\", \"pass\");")
	// if err != nil {
	// 	return nil, err
	// }
	return &Repository{db: db}, nil
}

func (r *Repository) GetTeams(ctx context.Context) ([]*models.Team, error) {
	rows, err := r.db.Query("select id, name, password from teams")
	if err != nil {
		panic(err)
	}
	defer rows.Close()
	teams := []*models.Team{}

	for rows.Next() {
		team := &models.Team{}
		err := rows.Scan(&team.ID, &team.Name, &team.Password)
		if err != nil {
			return nil, err
		}
		teams = append(teams, team)
	}
	return teams, nil
}

func (r *Repository) AddTeams(ctx context.Context, teams []*models.Team) ([]*models.Team, error) {
	for _, team := range teams {
		result, err := r.db.Exec("insert into teams (name, password) values ($1, $2)", team.Name, team.Password)
		if err != nil {
			return nil, err
		}
		team.ID, err = result.LastInsertId()
		if err != nil {
			return nil, err
		}
	}
	return teams, nil
}

func (r *Repository) GetActions(ctx context.Context, teamId int64) ([]*models.Action, error) {
	rows, err := r.db.Query("select id, place from actions where teamId = $1", teamId)
	if err != nil {
		panic(err)
	}
	defer rows.Close()
	actions := []*models.Action{}

	for rows.Next() {
		team := &models.Action{}
		err := rows.Scan(&team.ID, &team.Place)
		if err != nil {
			return nil, err
		}
		actions = append(actions, team)
	}
	return actions, nil
}

func (r *Repository) AddActions(ctx context.Context, actions []*models.Action) error {
	for _, action := range actions {
		_, err := r.db.Exec("insert into actions (place, teamId) values ($1, $2)", action.Place, action.TeamID)
		if err != nil {
			return err
		}
	}
	return nil
}

func (r *Repository) GetTeam(ctx context.Context, teamId any, password any) (*models.Team, error) {
	rows, err := r.db.Query("select id, name from teams where id = $1 and password = $2", teamId, password)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	teams := []*models.Team{}

	for rows.Next() {
		team := &models.Team{}
		err := rows.Scan(&team.ID, &team.Name)
		if err != nil {
			return nil, err
		}
		teams = append(teams, team)
	}
	if len(teams) != 1 {
		return nil, errors.New("bad result")
	}
	return teams[0], nil
}