-- TODO: figure out ondelete functions...

------------
-- JMdict --
------------

CREATE TABLE "JMdict_InfoDialect" (
  "id" VARCHAR(4) PRIMARY KEY NOT NULL,
  "description" TEXT NOT NULL
) WITHOUT ROWID;

CREATE TABLE "JMdict_InfoField" (
  "id" VARCHAR(7) PRIMARY KEY NOT NULL,
  "description" TEXT NOT NULL
) WITHOUT ROWID;

CREATE TABLE "JMdict_InfoKanji" (
  "id" VARCHAR(5) PRIMARY KEY NOT NULL,
  "description" TEXT NOT NULL
) WITHOUT ROWID;

CREATE TABLE "JMdict_InfoMisc" (
  "id" VARCHAR(12) PRIMARY KEY NOT NULL,
  "description" TEXT NOT NULL
) WITHOUT ROWID;

CREATE TABLE "JMdict_InfoPOS" (
  "id" VARCHAR(9) PRIMARY KEY NOT NULL,
  "description" TEXT NOT NULL
) WITHOUT ROWID;

CREATE TABLE "JMdict_InfoReading" (
  "id" VARCHAR(5) PRIMARY KEY NOT NULL,
  "description" TEXT NOT NULL
) WITHOUT ROWID;

-- The XML specification says that an entry needs to have at least
-- one sense and one reading. I will just assume this is the case, and
-- not implement a check for it.

CREATE TABLE "JMdict_Entry" (
  "id" INTEGER PRIMARY KEY
);

-- KanjiElement

CREATE TABLE "JMdict_KanjiElement" (
  "entryId" INTEGER NOT NULL REFERENCES "JMdict_Entry"("id"),
  "reading" TEXT NOT NULL,
  "news" INTEGER CHECK ("news" BETWEEN 1 AND 2),
  "ichi" INTEGER CHECK ("ichi" BETWEEN 1 AND 2),
  "spec" INTEGER CHECK ("spec" BETWEEN 1 AND 2),
  "gai" INTEGER CHECK ("gai" BETWEEN 1 AND 2),
  "nf" INTEGER,
  PRIMARY KEY ("entryId", "reading")
) WITHOUT ROWID;

CREATE TABLE "JMdict_KanjiElementInfo" (
  "entryId" INTEGER NOT NULL,
  "reading" TEXT NOT NULL,
  "info" TEXT NOT NULL REFERENCES "JMdict_InfoKanji"("id"),
  FOREIGN KEY ("entryId", "reading")
    REFERENCES "JMdict_KanjiElement"("entryId", "reading"),
  PRIMARY KEY ("entryId", "reading", "info")
) WITHOUT ROWID;

-- ReadingElement

CREATE TABLE "JMdict_ReadingElement" (
  "entryId" INTEGER NOT NULL REFERENCES "JMdict_Entry"("id"),
  "reading" TEXT NOT NULL,
  "readingDoesNotMatchKanji" BOOLEAN NOT NULL DEFAULT FALSE,
  "news" INTEGER CHECK ("news" BETWEEN 1 AND 2),
  "ichi" INTEGER CHECK ("ichi" BETWEEN 1 AND 2),
  "spec" INTEGER CHECK ("spec" BETWEEN 1 AND 2),
  "gai" INTEGER CHECK ("gai" BETWEEN 1 AND 2),
  "nf" INTEGER,
  PRIMARY KEY ("entryId", "reading")
) WITHOUT ROWID;

CREATE TABLE "JMdict_ReadingElementRestriction" (
  "entryId" INTEGER NOT NULL,
  "reading" TEXT NOT NULL,
  "restriction" TEXT NOT NULL,
  FOREIGN KEY ("entryId", "reading")
    REFERENCES "JMdict_ReadingElement"("entryId", "reading"),
  PRIMARY KEY ("entryId", "reading", "restriction")
) WITHOUT ROWID;

CREATE TABLE "JMdict_ReadingElementInfo" (
  "entryId" INTEGER NOT NULL,
  "reading" TEXT NOT NULL,
  "info" TEXT NOT NULL REFERENCES "JMdict_InfoReading"("id"),
  FOREIGN KEY ("entryId", "reading")
    REFERENCES "JMdict_ReadingElement"("entryId", "reading"),
  PRIMARY KEY ("entryId", "reading", "info")
) WITHOUT ROWID;

-- Sense

-- Optimal solution here would be to have an id INTEGER AUTOINCREMENT,
-- and the entryId as a composite key, since the entryId is used below.
-- However, autoincrementing composite keys are not available in sqlite

CREATE TABLE "JMdict_Sense" (
  "id" INTEGER PRIMARY KEY AUTOINCREMENT,
  "entryId" INTEGER REFERENCES "JMdict_Entry"("id")
);

CREATE TABLE "JMdict_SenseRestrictedToKanji" (
  "entryId" INTEGER,
  "senseId" INTEGER REFERENCES "JMdict_Sense"("id"),
  "kanji" TEXT,
  FOREIGN KEY ("entryId", "kanji") REFERENCES "JMdict_KanjiElement"("entryId", "kanji"),
  PRIMARY KEY ("entryId", "senseId", "kanji")
);

CREATE TABLE "JMdict_SenseRestrictedToReading" (
  "entryId" INTEGER,
  "senseId" INTEGER REFERENCES "JMdict_Sense"("id"),
  "reading" TEXT,
  FOREIGN KEY ("entryId", "reading") REFERENCES "JMdict_ReadingElement"("entryId", "reading"),
  PRIMARY KEY ("entryId", "senseId", "reading")
);

-- In order to add xrefs, you will need to have added the entry to xref to.
-- These should be added in a second pass of the dictionary file.

-- In this version of JMdict, the xrefs can be ambiguous.
-- There has been rumours of a nonambiguous version possibly arriving in the future
-- (https://www.edrdg.org/jmdict_edict_list/2019/msg00360.html)
-- but for time being, this need to be modeled as a one to many relationship.

-- These two things also concern "SenseAntonym"

CREATE TABLE "JMdict_SenseSeeAlso" (
  "senseId" INTEGER REFERENCES "JMdict_Sense"("id"),
  "xrefEntryId" INTEGER,
  "seeAlsoReading" TEXT,
  "seeAlsoKanji" TEXT,
  "seeAlsoSense" TEXT REFERENCES "JMdict_Sense"("id"),
  CHECK ("seeAlsoReading" = NULL <> "seeAlsoKanji" = NULL),
  -- CHECK("seeAlsoSense" = NULL OR "seeAlsoSense")
  --  Check that if seeAlsoSense is present, it refers to a sense connected to xrefEntryId.
  FOREIGN KEY ("xrefEntryId", "seeAlsoKanji") REFERENCES "JMdict_KanjiElement"("entryId", "kanji"),
  FOREIGN KEY ("xrefEntryId", "seeAlsoReading") REFERENCES "JMdict_ReadingElement"("entryId", "reading"),
  PRIMARY KEY ("senseId", "xrefEntryId", "seeAlsoReading", "seeAlsoKanji", "seeAlsoSense")
);

CREATE TABLE "JMdict_SenseAntonym" (
  "senseId" INTEGER REFERENCES "JMdict_Sense"("id"),
  "xrefEntryId" INTEGER,
  "antonymReading" TEXT,
  "antonymKanji" TEXT,
  "antonymSense" TEXT REFERENCES "JMdict_Sense"("id"),
  CHECK ("antonymReading" = NULL <> "antonymKanji" = NULL),
  FOREIGN KEY ("xrefEntryId", "antonymKanji") REFERENCES "JMdict_KanjiElement"("entryId", "kanji"),
  FOREIGN KEY ("xrefEntryId", "antonymReading") REFERENCES "JMdict_ReadingElement"("entryId", "reading"),
  PRIMARY KEY ("senseId", "xrefEntryId", "antonymReading", "antonymKanji", "antonymSense")
);

-- These cross references are going to be mostly accessed from a sense
-- This will speed up the join.
CREATE INDEX "JMdict_SenseSeeAlso_bySenseId" ON "JMdict_SenseSeeAlso"("senseId");
CREATE INDEX "JMdict_SenseAntonym_bySenseId" ON "JMdict_SenseAntonym"("senseId");

CREATE TABLE "JMdict_SensePOS" (
  "senseId" INTEGER NOT NULL REFERENCES "JMdict_Sense"("id"),
  "pos" TEXT NOT NULL REFERENCES "JMdict_InfoPOS"("id"),
  PRIMARY KEY ("senseId", "pos")
) WITHOUT ROWID;

CREATE TABLE "JMdict_SenseField" (
  "senseId" INTEGER NOT NULL,
  "field" TEXT NOT NULL,
  FOREIGN KEY ("senseId") REFERENCES "JMdict_Sense"("id"),
  FOREIGN KEY ("field") REFERENCES "JMdict_InfoField"("id"),
  PRIMARY KEY ("senseId", "field")
) WITHOUT ROWID;

CREATE TABLE "JMdict_SenseMisc" (
  "senseId" INTEGER NOT NULL REFERENCES "JMdict_Sense"("id"),
  "misc" TEXT NOT NULL REFERENCES "JMdict_InfoMisc"("id"),
  PRIMARY KEY ("senseId", "misc")
) WITHOUT ROWID;

CREATE TABLE "JMdict_SenseLanguageSource" (
  "senseId" INTEGER NOT NULL REFERENCES "JMdict_Sense"("id"),
  "language" CHAR(3) NOT NULL DEFAULT "eng",
  "phrase" TEXT,
  "fullyDescribesSense" BOOLEAN NOT NULL DEFAULT TRUE,
  "constructedFromSmallerWords" BOOLEAN NOT NULL DEFAULT FALSE,
  PRIMARY KEY ("senseId", "language", "phrase")
);

CREATE TABLE "JMdict_SenseDialect" (
  "senseId" INTEGER NOT NULL REFERENCES "JMdict_Sense"("id"),
  "dialect" TEXT NOT NULL REFERENCES "JMdict_InfoDialect"("dialect"),
  PRIMARY KEY ("senseId", "dialect")
) WITHOUT ROWID;

-- In the documentation, it says that the glossary can contain
-- special prioritized entries, but I can't find a single one of those.
-- Neither can I find a glossary tag with g_gend data, so these parts
-- will be omitted.

CREATE TABLE "JMdict_SenseGlossary" (
  "senseId" INTEGER NOT NULL REFERENCES "JMdict_Sense"("id"),
  "phrase" TEXT NOT NULL,
  "language" CHAR(3) NOT NULL DEFAULT "eng",
  "type" TEXT,
  PRIMARY KEY ("senseId", "language", "phrase")
) WITHOUT ROWID;

CREATE TABLE "JMdict_SenseInfo" (
  "senseId" INTEGER NOT NULL REFERENCES "JMdict_Sense"("id"),
  "info" TEXT NOT NULL,
  PRIMARY KEY ("senseId", "info")
) WITHOUT ROWID;

-- There is not a single example sentence that doesn't come from
-- the Tanaka Corpus, so I will leave the type out for now.

CREATE TABLE "JMdict_ExampleSentence" (
  "id" INTEGER PRIMARY KEY,
  "senseId" INTEGER REFERENCES "JMdict_Sense"("id"),
  "word" TEXT NOT NULL,
  "source" TEXT NOT NULL,
  "sourceLanguage" CHAR(3) NOT NULL DEFAULT "eng",
  "japanese" TEXT NOT NULL
  -- "type" TEXT NOT NULL DEFAULT "tat",
);

-- These tables are for optimizing searches.

-- In order to include results from both, the software should
-- first check if the searchword is convertible to kana, and then
-- potentially get results from both by doing a union between two
-- selects.

CREATE TABLE "JMdict_EntryByKana" (
  "kana" TEXT NOT NULL,
  "entryId" INTEGER NOT NULL REFERENCES "JMdict_Entry"("id"),
  PRIMARY KEY ("kana", "entryId")
) WITHOUT ROWID;

CREATE INDEX "JMdict_EntryByKana_byKana" ON "JMdict_EntryByKana"("kana");

CREATE TABLE "JMdict_EntryByEnglish" (
  "english" TEXT NOT NULL,
  "entryId" INTEGER NOT NULL REFERENCES "JMdict_Entry"("id"),
  PRIMARY KEY ("english", "entryId")
) WITHOUT ROWID;

CREATE INDEX "JMdict_EntryByEnglish_byEnglish" ON "JMdict_EntryByEnglish"("english");

--------------
-- RADKFILE --
--------------

CREATE TABLE "RADKFILE" (
  "kanji" CHAR(1) NOT NULL,
  "radical" CHAR(1) NOT NULL,
  PRIMARY KEY ("kanji", "radical")
) WITHOUT ROWID;

CREATE INDEX "RADK" ON "RADKFILE"("radical");
CREATE INDEX "KRAD" ON "RADKFILE"("kanji");

CREATE VIEW "RADKFILE_Radicals" AS
SELECT DISTINCT "radical" FROM "RADKFILE";

--------------
-- KANJIDIC --
--------------

CREATE TABLE "KANJIDIC_Character" (
  "literal" CHAR(1) NOT NULL PRIMARY KEY,
  "grade" INTEGER CHECK ("grade" BETWEEN 1 AND 10),
  "strokeCount" INTEGER NOT NULL,
  "frequency" INTEGER,
  "jlpt" INTEGER
) WITHOUT ROWID;

CREATE TABLE "KANJIDIC_RadicalName" (
  "kanji" CHAR(1) NOT NULL REFERENCES "KANJIDIC_Character"("literal"),
  "name" TEXT NOT NULL,
  PRIMARY KEY("kanji", "name")
) WITHOUT ROWID;

CREATE TABLE "KANJIDIC_Codepoint" (
  "kanji" CHAR(1) NOT NULL REFERENCES "KANJIDIC_Character"("literal"),
  "type" VARCHAR(6) NOT NULL CHECK ("type" IN ('jis208', 'jis212', 'jis213', 'ucs')),
  "codepoint" VARCHAR(7) NOT NULL,
  PRIMARY KEY ("kanji", "type")
) WITHOUT ROWID;

CREATE INDEX "KANJIDIC_Codepoint_byCharacter" ON "KANJIDIC_Codepoint"("kanji");

CREATE TABLE "KANJIDIC_Radical" (
  "kanji" CHAR(1) NOT NULL REFERENCES "KANJIDIC_Character"("literal"),
  "type" VARCHAR(9) NOT NULL CHECK ("type" IN ('classical', 'nelson_c')),
  "radical" INTEGER NOT NULL CHECK ("radical" BETWEEN 1 AND IIF("type" = 'classical', 214, 212)),
  PRIMARY KEY("kanji", "type")
) WITHOUT ROWID;

CREATE TABLE "KANJIDIC_StrokeMiscount" (
  "kanji" CHAR(1) NOT NULL REFERENCES "KANJIDIC_Character"("literal"),
  "strokeCount" INTEGER NOT NULL,
  PRIMARY KEY("kanji", "strokeCount")
) WITHOUT ROWID;

CREATE TABLE "KANJIDIC_Variant" (
  "kanji" CHAR(1) NOT NULL REFERENCES "KANJIDIC_Character"("literal"),
  "variant" TEXT NOT NULL,
  "type" VARCHAR(8) NOT NULL CHECK (
    "type" IN (
      'jis208',
      'jis212',
      'jis213',
      'deroo',
      'njecd',
      's_h',
      'nelson_c',
      'oneill',
      'ucs'
    )
  ),
  PRIMARY KEY ("kanji", "type", "variant")
) WITHOUT ROWID;

CREATE TABLE "_KANJIDIC_DictionaryReference_Part1" (
  "kanji" CHAR(1) NOT NULL REFERENCES "KANJIDIC_Character"("literal"),
  "ref" VARCHAR(9) NOT NULL,
  "type" VARCHAR(16) NOT NULL CHECK(
    "type" IN (
      'nelson_c',
      'nelson_n',
      'halpern_njecd',
      'halpern_kkd',
      'halpern_kkld',
      'halpern_kkld_2ed',
      'heisig',
      'heisig6',
      'gakken',
      'oneill_names',
      'oneill_kk',
      'henshall',
      'sh_kk',
      'sh_kk2',
      'sakade',
      'jf_cards',
      'henshall3',
      'tutt_cards',
      'crowley',
      'kanji_in_context',
      'busy_people',
      'kodansha_compact',
      'maniette'
    )
  ),
  PRIMARY KEY("kanji", "type")
) WITHOUT ROWID;

CREATE TABLE "_KANJIDIC_DictionaryReference_Moro" (
  "kanji" CHAR(1) NOT NULL PRIMARY KEY REFERENCES "KANJIDIC_Character"("literal"),
  "ref" VARCHAR(7) NOT NULL,
  "volume" INTEGER,
  "page" INTEGER
) WITHOUT ROWID;

CREATE INDEX "KANJIDIC_DictionaryReference_byPart1" ON "_KANJIDIC_DictionaryReference_Part1"("kanji", "ref", "type");
CREATE INDEX "KANJIDIC_DictionaryReference_byMoro" ON "_KANJIDIC_DictionaryReference_Moro"("kanji", "ref", "volume", "page");

CREATE VIEW "KANJIDIC_DictionaryReference" AS
SELECT "kanji", "ref", "type", NULL AS "volume", NULL AS "page" FROM "_KANJIDIC_DictionaryReference_Part1"
UNION
SELECT "kanji", "ref", 'moro' AS "type", "volume", "page" FROM "_KANJIDIC_DictionaryReference_Moro";

CREATE TABLE "KANJIDIC_QueryCode" (
  "kanji" CHAR(1) NOT NULL REFERENCES "KANJIDIC_Character"("literal"),
  "code" VARCHAR(7) NOT NULL,
  "type" VARCHAR(11) NOT NULL CHECK ("type" IN ('skip', 'sh_desc', 'four_corner', 'deroo', 'misclass')),
  "SKIPMisclassification" VARCHAR(15),
  PRIMARY KEY ("kanji", "type", "code")
) WITHOUT ROWID;

CREATE TABLE "KANJIDIC_Reading" (
  "kanji" CHAR(1) NOT NULL REFERENCES "KANJIDIC_Character"("literal"),
  "type" VARCHAR(8) NOT NULL CHECK ("type" IN ('korean_h', 'korean_r', 'pinyin')),
  "reading" TEXT NOT NULL,
  PRIMARY KEY ("kanji", "type", "reading")
) WITHOUT ROWID;

CREATE INDEX "KANJIDIC_Reading_byReading" ON "KANJIDIC_Reading"("reading");

CREATE TABLE "KANJIDIC_Kunyomi" (
  "kanji" CHAR(1) NOT NULL REFERENCES "KANJIDIC_Character"("literal"),
  "yomi" TEXT NOT NULL,
  "isJouyou" BOOLEAN,
  PRIMARY KEY ("kanji", "yomi")
) WITHOUT ROWID;

CREATE INDEX "KANJIDIC_Kunyomi_byYomi" ON "KANJIDIC_Kunyomi"("yomi");

CREATE TABLE "KANJIDIC_Onyomi" (
  "kanji" CHAR(1) NOT NULL REFERENCES "KANJIDIC_Character"("literal"),
  "yomi" TEXT NOT NULL,
  "type" VARCHAR(7) CHECK ("type" IN ('kan', 'go', 'tou', 'kan''you')),
  "isJouyou" BOOLEAN,
  PRIMARY KEY ("kanji", "yomi")
) WITHOUT ROWID;

CREATE INDEX "KANJIDIC_Onyomi_byYomi" ON "KANJIDIC_Onyomi"("yomi");

CREATE TABLE "KANJIDIC_Meaning" (
  "kanji" CHAR(1) NOT NULL REFERENCES "KANJIDIC_Character"("literal"),
  "language" CHAR(3) NOT NULL DEFAULT "eng",
  "meaning" TEXT NOT NULL,
  PRIMARY KEY ("kanji", "language", "meaning")
) WITHOUT ROWID;

CREATE INDEX "KANJIDIC_Meaning_byMeaning" ON "KANJIDIC_Meaning"("meaning");

CREATE TABLE "KANJIDIC_Nanori" (
  "kanji" CHAR(1) NOT NULL REFERENCES "KANJIDIC_Character"("literal"),
  "nanori" TEXT NOT NULL,
  PRIMARY KEY ("kanji", "nanori")
) WITHOUT ROWID;

CREATE INDEX "KANJIDIC_Nanori_byNanori" ON "KANJIDIC_Nanori"("nanori");

-------------------------
-- Interdict relations --
-------------------------

-- Radk - kanjidic
-- kanjireading -> filter kanji regex - kanjidic
-- index kanji search by romaji
-- index kanji search by hiragana
-- index word search by romaji
-- index word search by hiragana