157 lines
4.1 KiB
SQL
157 lines
4.1 KiB
SQL
PRAGMA foreign_keys = ON;
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-- Authentication
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CREATE TABLE IF NOT EXISTS users (
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id TEXT NOT NULL PRIMARY KEY,
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pass TEXT NOT NULL,
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admin BOOLEAN NOT NULL DEFAULT 0 CHECK (admin IN (0, 1)),
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created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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-- Books / Documents
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CREATE TABLE IF NOT EXISTS documents (
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id TEXT NOT NULL PRIMARY KEY,
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md5 TEXT,
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filepath TEXT,
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title TEXT,
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author TEXT,
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series TEXT,
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series_index INTEGER,
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lang TEXT,
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description TEXT,
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olid TEXT,
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synced BOOLEAN NOT NULL DEFAULT 0 CHECK (synced IN (0, 1)),
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deleted BOOLEAN NOT NULL DEFAULT 0 CHECK (deleted IN (0, 1)),
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updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
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created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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-- Devices
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CREATE TABLE IF NOT EXISTS devices (
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id TEXT NOT NULL PRIMARY KEY,
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user_id TEXT NOT NULL,
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device_name TEXT NOT NULL,
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created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
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sync BOOLEAN NOT NULL DEFAULT 1 CHECK (sync IN (0, 1)),
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FOREIGN KEY (user_id) REFERENCES users (id)
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);
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-- Document Device Sync
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CREATE TABLE IF NOT EXISTS document_device_sync (
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user_id TEXT NOT NULL,
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document_id TEXT NOT NULL,
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device_id TEXT NOT NULL,
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last_synced DATETIME NOT NULL,
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sync BOOLEAN NOT NULL DEFAULT 1 CHECK (sync IN (0, 1)),
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FOREIGN KEY (user_id) REFERENCES users (id),
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FOREIGN KEY (document_id) REFERENCES documents (id),
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FOREIGN KEY (device_id) REFERENCES devices (id),
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PRIMARY KEY (user_id, document_id, device_id)
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);
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-- User Document Progress
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CREATE TABLE IF NOT EXISTS document_progress (
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user_id TEXT NOT NULL,
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document_id TEXT NOT NULL,
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device_id TEXT NOT NULL,
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percentage REAL NOT NULL,
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progress TEXT NOT NULL,
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created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
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FOREIGN KEY (user_id) REFERENCES users (id),
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FOREIGN KEY (document_id) REFERENCES documents (id),
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FOREIGN KEY (device_id) REFERENCES devices (id),
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PRIMARY KEY (user_id, document_id, device_id)
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);
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-- Read Activity
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CREATE TABLE IF NOT EXISTS activity (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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user_id TEXT NOT NULL,
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document_id TEXT NOT NULL,
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device_id TEXT NOT NULL,
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start_time DATETIME NOT NULL,
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duration INTEGER NOT NULL,
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current_page INTEGER NOT NULL,
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total_pages INTEGER NOT NULL,
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created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
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FOREIGN KEY (user_id) REFERENCES users (id),
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FOREIGN KEY (document_id) REFERENCES documents (id),
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FOREIGN KEY (device_id) REFERENCES devices (id)
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);
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-- Update Trigger
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CREATE TRIGGER IF NOT EXISTS update_documents_updated_at
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BEFORE UPDATE ON documents BEGIN
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UPDATE documents
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SET updated_at = CURRENT_TIMESTAMP
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WHERE id = old.id;
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END;
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-- Rescaled Activity View (Adapted from KOReader)
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CREATE VIEW IF NOT EXISTS rescaled_activity AS
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WITH RECURSIVE numbers (idx) AS (
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SELECT 1 AS idx
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UNION ALL
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SELECT idx + 1
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FROM numbers
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LIMIT 1000
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),
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total_pages AS (
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SELECT
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document_id,
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total_pages AS pages
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FROM activity
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GROUP BY document_id
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HAVING MAX(start_time)
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ORDER BY start_time DESC
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),
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intermediate AS (
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SELECT
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activity.document_id,
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activity.device_id,
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activity.user_id,
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activity.current_page,
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activity.total_pages,
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total_pages.pages,
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activity.start_time,
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activity.duration,
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numbers.idx,
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-- Derive First Page
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((activity.current_page - 1) * total_pages.pages) / activity.total_pages
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+ 1 AS first_page,
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-- Derive Last Page
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MAX(
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((activity.current_page - 1) * total_pages.pages)
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/ activity.total_pages
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+ 1,
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(activity.current_page * total_pages.pages) / activity.total_pages
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) AS last_page
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FROM activity
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INNER JOIN total_pages ON total_pages.document_id = activity.document_id
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INNER JOIN numbers ON numbers.idx <= (last_page - first_page + 1)
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)
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SELECT
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document_id,
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device_id,
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user_id,
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start_time,
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first_page + idx - 1 AS page,
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duration / (last_page - first_page + 1) AS duration
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FROM intermediate;
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