package store

import (
	"context"
	"fmt"
)

// Profile is the single active user's Garmin credentials plus every
// tunable analysis-engine parameter. Always exactly one row (id=1).
type Profile struct {
	GarminEmail       string
	GarminPassword    string
	RollingWindowDays int
	// BackfillHorizonDays bounds how far back "Sync now" reaches when
	// walking backward from today; it's read fresh on every sync (not fixed
	// at server startup), so changing it here takes effect on the next
	// click. Unrelated to RollingWindowDays, which is for the (not yet
	// implemented) relative classification window.
	BackfillHorizonDays int
	MaxHeartRate        *float64
	RestingHeartRate    *float64

	HRZone1MinPct, HRZone1MaxPct float64
	HRZone2MinPct, HRZone2MaxPct float64
	HRZone3MinPct, HRZone3MaxPct float64
	HRZone4MinPct, HRZone4MaxPct float64
	HRZone5MinPct, HRZone5MaxPct float64

	// WarmupMinutes/CooldownMinutes apply uniformly to every fixed-duration
	// workout type's phase detection (Easy, Long, Tempo, Threshold 30'/60',
	// MAS Test). Interval workouts detect phases from lap data directly and
	// don't use these.
	WarmupMinutes, CooldownMinutes float64

	CreatedAt, UpdatedAt string
}

const profileColumns = `
	garmin_email, garmin_password, rolling_window_days, backfill_horizon_days, max_heart_rate, resting_heart_rate,
	hr_zone1_min_pct, hr_zone1_max_pct, hr_zone2_min_pct, hr_zone2_max_pct,
	hr_zone3_min_pct, hr_zone3_max_pct, hr_zone4_min_pct, hr_zone4_max_pct,
	hr_zone5_min_pct, hr_zone5_max_pct,
	warmup_minutes, cooldown_minutes,
	created_at, updated_at
`

// GetProfile returns the single profile row.
func (db *DB) GetProfile(ctx context.Context) (Profile, error) {
	var p Profile
	err := db.QueryRowContext(ctx, `SELECT `+profileColumns+` FROM profile WHERE id = 1`).Scan(
		&p.GarminEmail, &p.GarminPassword, &p.RollingWindowDays, &p.BackfillHorizonDays, &p.MaxHeartRate, &p.RestingHeartRate,
		&p.HRZone1MinPct, &p.HRZone1MaxPct, &p.HRZone2MinPct, &p.HRZone2MaxPct,
		&p.HRZone3MinPct, &p.HRZone3MaxPct, &p.HRZone4MinPct, &p.HRZone4MaxPct,
		&p.HRZone5MinPct, &p.HRZone5MaxPct,
		&p.WarmupMinutes, &p.CooldownMinutes,
		&p.CreatedAt, &p.UpdatedAt,
	)
	if err != nil {
		return Profile{}, fmt.Errorf("get profile: %w", err)
	}
	return p, nil
}

// UpdateProfile overwrites the single profile row. Callers should read via
// GetProfile first and modify the fields they intend to change, since this
// replaces every column.
func (db *DB) UpdateProfile(ctx context.Context, p Profile) error {
	_, err := db.ExecContext(ctx, `
		UPDATE profile SET
			garmin_email=?, garmin_password=?, rolling_window_days=?, backfill_horizon_days=?, max_heart_rate=?, resting_heart_rate=?,
			hr_zone1_min_pct=?, hr_zone1_max_pct=?, hr_zone2_min_pct=?, hr_zone2_max_pct=?,
			hr_zone3_min_pct=?, hr_zone3_max_pct=?, hr_zone4_min_pct=?, hr_zone4_max_pct=?,
			hr_zone5_min_pct=?, hr_zone5_max_pct=?,
			warmup_minutes=?, cooldown_minutes=?,
			updated_at=datetime('now')
		WHERE id = 1`,
		p.GarminEmail, p.GarminPassword, p.RollingWindowDays, p.BackfillHorizonDays, p.MaxHeartRate, p.RestingHeartRate,
		p.HRZone1MinPct, p.HRZone1MaxPct, p.HRZone2MinPct, p.HRZone2MaxPct,
		p.HRZone3MinPct, p.HRZone3MaxPct, p.HRZone4MinPct, p.HRZone4MaxPct,
		p.HRZone5MinPct, p.HRZone5MaxPct,
		p.WarmupMinutes, p.CooldownMinutes,
	)
	if err != nil {
		return fmt.Errorf("update profile: %w", err)
	}
	return nil
}