-- CreateSchema
CREATE SCHEMA IF NOT EXISTS "public";

-- CreateEnum
CREATE TYPE "measurement_type" AS ENUM ('WEIGHT', 'BLOOD_PRESSURE_SYS', 'BLOOD_PRESSURE_DIA', 'PULSE', 'BODY_FAT', 'SLEEP_DURATION', 'ACTIVITY_STEPS');

-- CreateEnum
CREATE TYPE "measurement_source" AS ENUM ('MANUAL', 'WITHINGS', 'IMPORT');

-- CreateEnum
CREATE TYPE "intake_source" AS ENUM ('WEB', 'API', 'REMINDER');

-- CreateTable
CREATE TABLE "users" (
    "id" TEXT NOT NULL,
    "username" TEXT NOT NULL,
    "email" TEXT,
    "password_hash" TEXT,
    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "updated_at" TIMESTAMP(3) NOT NULL,
    "height_cm" DOUBLE PRECISION,
    "timezone" TEXT NOT NULL DEFAULT 'Europe/Berlin',
    "bp_sys_target_low" INTEGER,
    "bp_sys_target_high" INTEGER,
    "bp_dia_target_low" INTEGER,
    "bp_dia_target_high" INTEGER,
    "openai_key_encrypted" TEXT,
    "insights_privacy_mode" TEXT NOT NULL DEFAULT 'aggregated',
    "insights_cached_at" TIMESTAMP(3),
    "insights_cached_text" TEXT,

    CONSTRAINT "users_pkey" PRIMARY KEY ("id")
);

-- CreateTable
CREATE TABLE "passkeys" (
    "id" TEXT NOT NULL,
    "user_id" TEXT NOT NULL,
    "name" TEXT NOT NULL DEFAULT 'Passkey',
    "credential_id" TEXT NOT NULL,
    "credential_public_key" BYTEA NOT NULL,
    "counter" BIGINT NOT NULL DEFAULT 0,
    "credential_device_type" TEXT NOT NULL,
    "credential_backed_up" BOOLEAN NOT NULL DEFAULT false,
    "transports" TEXT[],
    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,

    CONSTRAINT "passkeys_pkey" PRIMARY KEY ("id")
);

-- CreateTable
CREATE TABLE "sessions" (
    "id" TEXT NOT NULL,
    "user_id" TEXT NOT NULL,
    "expires_at" TIMESTAMP(3) NOT NULL,
    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "ip_address" TEXT,
    "user_agent" TEXT,

    CONSTRAINT "sessions_pkey" PRIMARY KEY ("id")
);

-- CreateTable
CREATE TABLE "auth_challenges" (
    "id" TEXT NOT NULL,
    "user_id" TEXT,
    "challenge" TEXT NOT NULL,
    "type" TEXT NOT NULL,
    "expires_at" TIMESTAMP(3) NOT NULL,
    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,

    CONSTRAINT "auth_challenges_pkey" PRIMARY KEY ("id")
);

-- CreateTable
CREATE TABLE "measurements" (
    "id" TEXT NOT NULL,
    "user_id" TEXT NOT NULL,
    "type" "measurement_type" NOT NULL,
    "value" DOUBLE PRECISION NOT NULL,
    "unit" TEXT NOT NULL,
    "source" "measurement_source" NOT NULL DEFAULT 'MANUAL',
    "measured_at" TIMESTAMP(3) NOT NULL,
    "notes" TEXT,
    "external_id" TEXT,
    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "updated_at" TIMESTAMP(3) NOT NULL,

    CONSTRAINT "measurements_pkey" PRIMARY KEY ("id")
);

-- CreateTable
CREATE TABLE "medications" (
    "id" TEXT NOT NULL,
    "user_id" TEXT NOT NULL,
    "name" TEXT NOT NULL,
    "dose" TEXT NOT NULL,
    "active" BOOLEAN NOT NULL DEFAULT true,
    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "updated_at" TIMESTAMP(3) NOT NULL,

    CONSTRAINT "medications_pkey" PRIMARY KEY ("id")
);

-- CreateTable
CREATE TABLE "medication_schedules" (
    "id" TEXT NOT NULL,
    "medication_id" TEXT NOT NULL,
    "windowStart" TEXT NOT NULL,
    "windowEnd" TEXT NOT NULL,
    "label" TEXT,

    CONSTRAINT "medication_schedules_pkey" PRIMARY KEY ("id")
);

-- CreateTable
CREATE TABLE "medication_intake_events" (
    "id" TEXT NOT NULL,
    "user_id" TEXT NOT NULL,
    "medication_id" TEXT NOT NULL,
    "scheduled_for" TIMESTAMP(3) NOT NULL,
    "taken_at" TIMESTAMP(3),
    "skipped" BOOLEAN NOT NULL DEFAULT false,
    "source" "intake_source" NOT NULL DEFAULT 'WEB',
    "idempotency_key" TEXT,
    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,

    CONSTRAINT "medication_intake_events_pkey" PRIMARY KEY ("id")
);

-- CreateTable
CREATE TABLE "api_tokens" (
    "id" TEXT NOT NULL,
    "user_id" TEXT NOT NULL,
    "name" TEXT NOT NULL,
    "token_hash" TEXT NOT NULL,
    "permissions" TEXT[] DEFAULT ARRAY['medication:ingest']::TEXT[],
    "last_used_at" TIMESTAMP(3),
    "expires_at" TIMESTAMP(3),
    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "revoked" BOOLEAN NOT NULL DEFAULT false,

    CONSTRAINT "api_tokens_pkey" PRIMARY KEY ("id")
);

-- CreateTable
CREATE TABLE "withings_connections" (
    "id" TEXT NOT NULL,
    "user_id" TEXT NOT NULL,
    "withings_user_id" TEXT NOT NULL,
    "access_token" TEXT NOT NULL,
    "refresh_token" TEXT NOT NULL,
    "token_expires_at" TIMESTAMP(3) NOT NULL,
    "last_synced_at" TIMESTAMP(3),
    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "updated_at" TIMESTAMP(3) NOT NULL,

    CONSTRAINT "withings_connections_pkey" PRIMARY KEY ("id")
);

-- CreateTable
CREATE TABLE "audit_logs" (
    "id" TEXT NOT NULL,
    "user_id" TEXT,
    "action" TEXT NOT NULL,
    "details" TEXT,
    "ip_address" TEXT,
    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,

    CONSTRAINT "audit_logs_pkey" PRIMARY KEY ("id")
);

-- CreateIndex
CREATE UNIQUE INDEX "users_username_key" ON "users"("username");

-- CreateIndex
CREATE UNIQUE INDEX "users_email_key" ON "users"("email");

-- CreateIndex
CREATE UNIQUE INDEX "passkeys_credential_id_key" ON "passkeys"("credential_id");

-- CreateIndex
CREATE INDEX "sessions_user_id_idx" ON "sessions"("user_id");

-- CreateIndex
CREATE INDEX "auth_challenges_user_id_idx" ON "auth_challenges"("user_id");

-- CreateIndex
CREATE INDEX "measurements_user_id_type_measured_at_idx" ON "measurements"("user_id", "type", "measured_at");

-- CreateIndex
CREATE INDEX "measurements_external_id_idx" ON "measurements"("external_id");

-- CreateIndex
CREATE UNIQUE INDEX "measurements_user_id_type_measured_at_source_key" ON "measurements"("user_id", "type", "measured_at", "source");

-- CreateIndex
CREATE INDEX "medications_user_id_idx" ON "medications"("user_id");

-- CreateIndex
CREATE UNIQUE INDEX "medication_intake_events_idempotency_key_key" ON "medication_intake_events"("idempotency_key");

-- CreateIndex
CREATE INDEX "medication_intake_events_user_id_medication_id_scheduled_fo_idx" ON "medication_intake_events"("user_id", "medication_id", "scheduled_for");

-- CreateIndex
CREATE UNIQUE INDEX "api_tokens_token_hash_key" ON "api_tokens"("token_hash");

-- CreateIndex
CREATE INDEX "api_tokens_user_id_idx" ON "api_tokens"("user_id");

-- CreateIndex
CREATE UNIQUE INDEX "withings_connections_user_id_key" ON "withings_connections"("user_id");

-- CreateIndex
CREATE INDEX "audit_logs_user_id_created_at_idx" ON "audit_logs"("user_id", "created_at");

-- CreateIndex
CREATE INDEX "audit_logs_action_created_at_idx" ON "audit_logs"("action", "created_at");

-- AddForeignKey
ALTER TABLE "passkeys" ADD CONSTRAINT "passkeys_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "sessions" ADD CONSTRAINT "sessions_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "auth_challenges" ADD CONSTRAINT "auth_challenges_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "measurements" ADD CONSTRAINT "measurements_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "medications" ADD CONSTRAINT "medications_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "medication_schedules" ADD CONSTRAINT "medication_schedules_medication_id_fkey" FOREIGN KEY ("medication_id") REFERENCES "medications"("id") ON DELETE CASCADE ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "medication_intake_events" ADD CONSTRAINT "medication_intake_events_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "medication_intake_events" ADD CONSTRAINT "medication_intake_events_medication_id_fkey" FOREIGN KEY ("medication_id") REFERENCES "medications"("id") ON DELETE CASCADE ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "api_tokens" ADD CONSTRAINT "api_tokens_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "withings_connections" ADD CONSTRAINT "withings_connections_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "audit_logs" ADD CONSTRAINT "audit_logs_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE SET NULL ON UPDATE CASCADE;