-- activities.garmin_activity_id's UNIQUE constraint (migration 0001) must become
-- per-user (UNIQUE(user_id, garmin_activity_id)) now that the per-user-profile
-- design allows multiple users to share the same Garmin activity ID. The old
-- constraint alone was intentionally left in place by migration 0022 as a
-- belts-and-suspenders safeguard (Garmin IDs are globally unique in practice),
-- but it must be removed now to allow Task 6's cross-user test to pass.
PRAGMA foreign_keys = OFF;

CREATE TABLE activities_new (
    id                         INTEGER PRIMARY KEY AUTOINCREMENT,
    user_id                    INTEGER REFERENCES users(id),
    garmin_activity_id         INTEGER NOT NULL,
    event_type_key             TEXT NOT NULL,
    workout_id                 INTEGER,
    start_time_utc             TEXT NOT NULL,
    duration_seconds           REAL NOT NULL,
    distance_meters            REAL NOT NULL,
    avg_hr                     REAL,
    max_hr                     REAL,
    avg_speed_mps              REAL,
    elevation_gain_m           REAL,
    aerobic_training_effect    REAL,
    anaerobic_training_effect  REAL,
    vo2max_value               REAL,
    raw_json                   TEXT NOT NULL,
    details_fetched_at         TEXT,
    details_raw_json           TEXT,
    splits_fetched_at          TEXT,
    workout_raw_json           TEXT,
    created_at                 TEXT NOT NULL DEFAULT (datetime('now')),
    updated_at                 TEXT NOT NULL DEFAULT (datetime('now')),
    UNIQUE(user_id, garmin_activity_id)
);

INSERT INTO activities_new (id, user_id, garmin_activity_id, event_type_key, workout_id, start_time_utc, duration_seconds, distance_meters, avg_hr, max_hr, avg_speed_mps, elevation_gain_m, aerobic_training_effect, anaerobic_training_effect, vo2max_value, raw_json, details_fetched_at, details_raw_json, splits_fetched_at, workout_raw_json, created_at, updated_at)
SELECT id, user_id, garmin_activity_id, event_type_key, workout_id, start_time_utc, duration_seconds, distance_meters, avg_hr, max_hr, avg_speed_mps, elevation_gain_m, aerobic_training_effect, anaerobic_training_effect, vo2max_value, raw_json, details_fetched_at, details_raw_json, splits_fetched_at, workout_raw_json, created_at, updated_at
FROM activities;

DROP TABLE activities;

ALTER TABLE activities_new RENAME TO activities;

CREATE INDEX idx_activities_start_time ON activities(start_time_utc);
CREATE INDEX idx_activities_user_garmin_id ON activities(user_id, garmin_activity_id);

PRAGMA foreign_keys = ON;