CREATE TABLE `activation_code` (
	`id` bigint AUTO_INCREMENT NOT NULL,
	`child_user_id` bigint NOT NULL,
	`code_hash` varchar(64) NOT NULL,
	`created_by` bigint NOT NULL,
	`created_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
	`expires_at` datetime NOT NULL,
	`used_at` datetime,
	CONSTRAINT `activation_code_id` PRIMARY KEY(`id`)
);
--> statement-breakpoint
CREATE TABLE `family` (
	`id` bigint AUTO_INCREMENT NOT NULL,
	`name` varchar(50) NOT NULL,
	`created_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
	CONSTRAINT `family_id` PRIMARY KEY(`id`)
);
--> statement-breakpoint
CREATE TABLE `photo` (
	`id` bigint AUTO_INCREMENT NOT NULL,
	`task_instance_id` bigint NOT NULL,
	`oss_key` varchar(300) NOT NULL,
	`created_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
	CONSTRAINT `photo_id` PRIMARY KEY(`id`)
);
--> statement-breakpoint
CREATE TABLE `session` (
	`id` bigint AUTO_INCREMENT NOT NULL,
	`user_id` bigint NOT NULL,
	`token_hash` varchar(64) NOT NULL,
	`device_label` varchar(100),
	`created_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
	`expires_at` datetime NOT NULL,
	CONSTRAINT `session_id` PRIMARY KEY(`id`),
	CONSTRAINT `uq_session_token` UNIQUE(`token_hash`)
);
--> statement-breakpoint
CREATE TABLE `task_instance` (
	`id` bigint AUTO_INCREMENT NOT NULL,
	`child_user_id` bigint NOT NULL,
	`date` date NOT NULL,
	`title` varchar(100) NOT NULL,
	`requires_photo` boolean NOT NULL DEFAULT false,
	`status` enum('pending','done') NOT NULL DEFAULT 'pending',
	`is_makeup` boolean NOT NULL DEFAULT false,
	`done_at` datetime,
	`sort_order` int NOT NULL DEFAULT 0,
	`source_template_id` bigint,
	`created_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
	CONSTRAINT `task_instance_id` PRIMARY KEY(`id`)
);
--> statement-breakpoint
CREATE TABLE `task_template` (
	`id` bigint AUTO_INCREMENT NOT NULL,
	`child_user_id` bigint NOT NULL,
	`dow` int NOT NULL,
	`title` varchar(100) NOT NULL,
	`requires_photo` boolean NOT NULL DEFAULT false,
	`sort_order` int NOT NULL DEFAULT 0,
	`created_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
	CONSTRAINT `task_template_id` PRIMARY KEY(`id`)
);
--> statement-breakpoint
CREATE TABLE `user` (
	`id` bigint AUTO_INCREMENT NOT NULL,
	`family_id` bigint NOT NULL,
	`role` enum('parent','child') NOT NULL,
	`display_name` varchar(50) NOT NULL,
	`phone` varchar(20),
	`password_hash` varchar(100),
	`sort_order` int NOT NULL DEFAULT 0,
	`created_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
	CONSTRAINT `user_id` PRIMARY KEY(`id`),
	CONSTRAINT `uq_user_phone` UNIQUE(`phone`)
);
--> statement-breakpoint
ALTER TABLE `activation_code` ADD CONSTRAINT `activation_code_child_user_id_user_id_fk` FOREIGN KEY (`child_user_id`) REFERENCES `user`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
ALTER TABLE `activation_code` ADD CONSTRAINT `activation_code_created_by_user_id_fk` FOREIGN KEY (`created_by`) REFERENCES `user`(`id`) ON DELETE no action ON UPDATE no action;--> statement-breakpoint
ALTER TABLE `photo` ADD CONSTRAINT `photo_task_instance_id_task_instance_id_fk` FOREIGN KEY (`task_instance_id`) REFERENCES `task_instance`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
ALTER TABLE `session` ADD CONSTRAINT `session_user_id_user_id_fk` FOREIGN KEY (`user_id`) REFERENCES `user`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
ALTER TABLE `task_instance` ADD CONSTRAINT `task_instance_child_user_id_user_id_fk` FOREIGN KEY (`child_user_id`) REFERENCES `user`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
ALTER TABLE `task_template` ADD CONSTRAINT `task_template_child_user_id_user_id_fk` FOREIGN KEY (`child_user_id`) REFERENCES `user`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
ALTER TABLE `user` ADD CONSTRAINT `user_family_id_family_id_fk` FOREIGN KEY (`family_id`) REFERENCES `family`(`id`) ON DELETE no action ON UPDATE no action;--> statement-breakpoint
CREATE INDEX `idx_photo_instance` ON `photo` (`task_instance_id`);--> statement-breakpoint
CREATE INDEX `idx_session_user` ON `session` (`user_id`);--> statement-breakpoint
CREATE INDEX `idx_instance_child_date` ON `task_instance` (`child_user_id`,`date`);--> statement-breakpoint
CREATE INDEX `idx_template_child_dow` ON `task_template` (`child_user_id`,`dow`);