-- CreateTable
CREATE TABLE `users` (
    `id` VARCHAR(36) NOT NULL DEFAULT (UUID()),
    `clerk_id` VARCHAR(255) NOT NULL,
    `email` VARCHAR(255) NOT NULL,
    `username` VARCHAR(100) NOT NULL,
    `created_at` TIMESTAMP(0) NULL DEFAULT CURRENT_TIMESTAMP,
    `updated_at` TIMESTAMP(0) NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    `first_name` VARCHAR(100) NULL,
    `last_name` VARCHAR(100) NULL,
    `avatar_url` VARCHAR(500) NULL,
    `impact_score` INTEGER NULL DEFAULT 0,
    `notification_email` BOOLEAN NULL DEFAULT true,
    `notification_in_app` BOOLEAN NULL DEFAULT true,
    `areas_of_interest` JSON NULL,

    UNIQUE INDEX `clerk_id`(`clerk_id`),
    UNIQUE INDEX `email`(`email`),
    UNIQUE INDEX `username`(`username`),
    INDEX `idx_clerk_id`(`clerk_id`),
    INDEX `idx_email`(`email`),
    INDEX `idx_username`(`username`),
    PRIMARY KEY (`id`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ENGINE=InnoDB;

-- CreateTable
CREATE TABLE `reports` (
    `id` VARCHAR(36) NOT NULL DEFAULT (UUID()),
    `user_id` VARCHAR(36) NOT NULL,
    `location` POINT NOT NULL SRID 4326,
    `latitude` DECIMAL(10, 8) NOT NULL,
    `longitude` DECIMAL(11, 8) NOT NULL,
    `location_source` ENUM('exif', 'gps', 'manual') NOT NULL,
    `photo_urls` JSON NOT NULL,
    `photo_timestamp` TIMESTAMP(0) NULL,
    `litter_type` ENUM('plastic', 'metal', 'glass', 'organic', 'hazardous', 'other') NOT NULL,
    `quantity` ENUM('minimal', 'moderate', 'significant', 'severe') NOT NULL,
    `description` TEXT NULL,
    `created_at` TIMESTAMP(0) NULL DEFAULT CURRENT_TIMESTAMP,
    `updated_at` TIMESTAMP(0) NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    `submitted_at` TIMESTAMP(0) NULL DEFAULT CURRENT_TIMESTAMP,
    `verification_status` ENUM('pending', 'verified', 'disputed') NULL DEFAULT 'pending',

    INDEX `idx_created_at`(`created_at`),
    INDEX `idx_lat_lng`(`latitude`, `longitude`),
    INDEX `idx_litter_type`(`litter_type`),
    SPATIAL INDEX `idx_location`(`location`),
    INDEX `user_id`(`user_id`),
    PRIMARY KEY (`id`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ENGINE=InnoDB;

-- CreateTable
CREATE TABLE `events` (
    `id` VARCHAR(36) NOT NULL DEFAULT (UUID()),
    `organizer_id` VARCHAR(36) NOT NULL,
    `title` VARCHAR(255) NOT NULL,
    `description` TEXT NOT NULL,
    `location` POINT NOT NULL SRID 4326,
    `latitude` DECIMAL(10, 8) NOT NULL,
    `longitude` DECIMAL(11, 8) NOT NULL,
    `location_name` VARCHAR(255) NOT NULL,
    `scheduled_date` TIMESTAMP(0) NOT NULL,
    `duration` INTEGER NOT NULL COMMENT 'Duration in minutes',
    `status` ENUM('upcoming', 'completed', 'cancelled') NULL DEFAULT 'upcoming',
    `participant_count` INTEGER NULL DEFAULT 0,
    `litter_collected` DECIMAL(10, 2) NULL COMMENT 'Kilograms collected',
    `photos` JSON NULL,
    `created_at` TIMESTAMP(0) NULL DEFAULT CURRENT_TIMESTAMP,
    `updated_at` TIMESTAMP(0) NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,

    SPATIAL INDEX `idx_location`(`location`),
    INDEX `idx_scheduled_date`(`scheduled_date`),
    INDEX `idx_status`(`status`),
    INDEX `organizer_id`(`organizer_id`),
    PRIMARY KEY (`id`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ENGINE=InnoDB;

-- CreateTable
CREATE TABLE `event_registrations` (
    `id` VARCHAR(36) NOT NULL DEFAULT (UUID()),
    `user_id` VARCHAR(36) NOT NULL,
    `event_id` VARCHAR(36) NOT NULL,
    `registered_at` TIMESTAMP(0) NULL DEFAULT CURRENT_TIMESTAMP,
    `attended` BOOLEAN NULL DEFAULT false,

    INDEX `event_id`(`event_id`),
    UNIQUE INDEX `unique_user_event`(`user_id`, `event_id`),
    PRIMARY KEY (`id`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ENGINE=InnoDB;

-- CreateTable
CREATE TABLE `verifications` (
    `id` VARCHAR(36) NOT NULL DEFAULT (UUID()),
    `report_id` VARCHAR(36) NOT NULL,
    `user_id` VARCHAR(36) NOT NULL,
    `verification_type` ENUM('verify', 'dispute') NOT NULL,
    `comment` TEXT NULL,
    `created_at` TIMESTAMP(0) NULL DEFAULT CURRENT_TIMESTAMP,

    INDEX `user_id`(`user_id`),
    UNIQUE INDEX `unique_report_user`(`report_id`, `user_id`),
    PRIMARY KEY (`id`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ENGINE=InnoDB;

-- CreateTable
CREATE TABLE `environmental_concerns` (
    `id` VARCHAR(36) NOT NULL DEFAULT (UUID()),
    `report_id` VARCHAR(36) NOT NULL,
    `concern_type` VARCHAR(100) NOT NULL COMMENT 'water_quality, erosion, wildlife_impact, algae_bloom, etc.',
    `severity` ENUM('low', 'medium', 'high', 'critical') NOT NULL,
    `description` TEXT NOT NULL,
    `created_at` TIMESTAMP(0) NULL DEFAULT CURRENT_TIMESTAMP,

    INDEX `idx_concern_type`(`concern_type`),
    INDEX `report_id`(`report_id`),
    PRIMARY KEY (`id`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ENGINE=InnoDB;

-- CreateTable
CREATE TABLE `hotspots` (
    `id` VARCHAR(36) NOT NULL DEFAULT (UUID()),
    `location` POINT NOT NULL SRID 4326,
    `latitude` DECIMAL(10, 8) NOT NULL,
    `longitude` DECIMAL(11, 8) NOT NULL,
    `radius` DECIMAL(10, 2) NOT NULL COMMENT 'Radius in meters',
    `report_count` INTEGER NOT NULL,
    `severity_score` DECIMAL(5, 2) NOT NULL,
    `last_report_date` TIMESTAMP(0) NOT NULL,
    `calculated_at` TIMESTAMP(0) NULL DEFAULT CURRENT_TIMESTAMP,

    SPATIAL INDEX `idx_location`(`location`),
    INDEX `idx_severity_score`(`severity_score`),
    PRIMARY KEY (`id`)
) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ENGINE=InnoDB;

-- AddForeignKey
ALTER TABLE `reports` ADD CONSTRAINT `reports_ibfk_1` FOREIGN KEY (`user_id`) REFERENCES `users`(`id`) ON DELETE CASCADE ON UPDATE NO ACTION;

-- AddForeignKey
ALTER TABLE `events` ADD CONSTRAINT `events_ibfk_1` FOREIGN KEY (`organizer_id`) REFERENCES `users`(`id`) ON DELETE CASCADE ON UPDATE NO ACTION;

-- AddForeignKey
ALTER TABLE `event_registrations` ADD CONSTRAINT `event_registrations_ibfk_1` FOREIGN KEY (`user_id`) REFERENCES `users`(`id`) ON DELETE CASCADE ON UPDATE NO ACTION;

-- AddForeignKey
ALTER TABLE `event_registrations` ADD CONSTRAINT `event_registrations_ibfk_2` FOREIGN KEY (`event_id`) REFERENCES `events`(`id`) ON DELETE CASCADE ON UPDATE NO ACTION;

-- AddForeignKey
ALTER TABLE `verifications` ADD CONSTRAINT `verifications_ibfk_1` FOREIGN KEY (`report_id`) REFERENCES `reports`(`id`) ON DELETE CASCADE ON UPDATE NO ACTION;

-- AddForeignKey
ALTER TABLE `verifications` ADD CONSTRAINT `verifications_ibfk_2` FOREIGN KEY (`user_id`) REFERENCES `users`(`id`) ON DELETE CASCADE ON UPDATE NO ACTION;

-- AddForeignKey
ALTER TABLE `environmental_concerns` ADD CONSTRAINT `environmental_concerns_ibfk_1` FOREIGN KEY (`report_id`) REFERENCES `reports`(`id`) ON DELETE CASCADE ON UPDATE NO ACTION;