-- SEO Growth Engine — programmatic indexation foundation.
-- 1) RegionCategoryNarrative: AI-generisani jedinstveni sadržaj po kombinaciji.
-- 2) CompanyServiceArea: uslužni biznisi sa multi-region pokrivenošću.
-- 3) SeoQuestion: Q&A landing strane za long-tail upite.
-- 4) IndexNowSubmission: audit log za IndexNow/Google/Bing pingove.

CREATE TABLE "RegionCategoryNarrative" (
  "id"          TEXT NOT NULL,
  "regionId"    TEXT NOT NULL,
  "categoryId"  TEXT NOT NULL,
  "intro"       TEXT NOT NULL,
  "bodyMd"      TEXT NOT NULL,
  "bullets"     TEXT[] NOT NULL DEFAULT ARRAY[]::TEXT[],
  "modelUsed"   TEXT,
  "promptVer"   INTEGER NOT NULL DEFAULT 1,
  "generatedAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
  "updatedAt"   TIMESTAMP(3) NOT NULL,
  CONSTRAINT "RegionCategoryNarrative_pkey" PRIMARY KEY ("id")
);
CREATE UNIQUE INDEX "RegionCategoryNarrative_regionId_categoryId_key"
  ON "RegionCategoryNarrative"("regionId", "categoryId");
CREATE INDEX "RegionCategoryNarrative_generatedAt_idx" ON "RegionCategoryNarrative"("generatedAt");
CREATE INDEX "RegionCategoryNarrative_categoryId_idx" ON "RegionCategoryNarrative"("categoryId");
CREATE INDEX "RegionCategoryNarrative_regionId_idx" ON "RegionCategoryNarrative"("regionId");

ALTER TABLE "RegionCategoryNarrative"
  ADD CONSTRAINT "RegionCategoryNarrative_regionId_fkey"
  FOREIGN KEY ("regionId") REFERENCES "RegionNode"("id") ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE "RegionCategoryNarrative"
  ADD CONSTRAINT "RegionCategoryNarrative_categoryId_fkey"
  FOREIGN KEY ("categoryId") REFERENCES "Category"("id") ON DELETE CASCADE ON UPDATE CASCADE;

CREATE TABLE "CompanyServiceArea" (
  "id"        TEXT NOT NULL,
  "companyId" TEXT NOT NULL,
  "regionId"  TEXT NOT NULL,
  "isPrimary" BOOLEAN NOT NULL DEFAULT false,
  "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
  CONSTRAINT "CompanyServiceArea_pkey" PRIMARY KEY ("id")
);
CREATE UNIQUE INDEX "CompanyServiceArea_companyId_regionId_key"
  ON "CompanyServiceArea"("companyId", "regionId");
CREATE INDEX "CompanyServiceArea_regionId_idx" ON "CompanyServiceArea"("regionId");
CREATE INDEX "CompanyServiceArea_companyId_idx" ON "CompanyServiceArea"("companyId");

ALTER TABLE "CompanyServiceArea"
  ADD CONSTRAINT "CompanyServiceArea_companyId_fkey"
  FOREIGN KEY ("companyId") REFERENCES "Company"("id") ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE "CompanyServiceArea"
  ADD CONSTRAINT "CompanyServiceArea_regionId_fkey"
  FOREIGN KEY ("regionId") REFERENCES "RegionNode"("id") ON DELETE CASCADE ON UPDATE CASCADE;

CREATE TABLE "SeoQuestion" (
  "id"          TEXT NOT NULL,
  "slug"        TEXT NOT NULL,
  "question"    TEXT NOT NULL,
  "answerMd"    TEXT NOT NULL,
  "summary"     TEXT,
  "categoryId"  TEXT,
  "regionId"    TEXT,
  "source"      TEXT NOT NULL DEFAULT 'ai',
  "modelUsed"   TEXT,
  "status"      TEXT NOT NULL DEFAULT 'PUBLISHED',
  "publishedAt" TIMESTAMP(3),
  "createdAt"   TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
  "updatedAt"   TIMESTAMP(3) NOT NULL,
  CONSTRAINT "SeoQuestion_pkey" PRIMARY KEY ("id")
);
CREATE UNIQUE INDEX "SeoQuestion_slug_key" ON "SeoQuestion"("slug");
CREATE INDEX "SeoQuestion_categoryId_regionId_idx" ON "SeoQuestion"("categoryId", "regionId");
CREATE INDEX "SeoQuestion_status_publishedAt_idx" ON "SeoQuestion"("status", "publishedAt");

ALTER TABLE "SeoQuestion"
  ADD CONSTRAINT "SeoQuestion_categoryId_fkey"
  FOREIGN KEY ("categoryId") REFERENCES "Category"("id") ON DELETE SET NULL ON UPDATE CASCADE;
ALTER TABLE "SeoQuestion"
  ADD CONSTRAINT "SeoQuestion_regionId_fkey"
  FOREIGN KEY ("regionId") REFERENCES "RegionNode"("id") ON DELETE SET NULL ON UPDATE CASCADE;

CREATE TABLE "IndexNowSubmission" (
  "id"          TEXT NOT NULL,
  "url"         TEXT NOT NULL,
  "engine"      TEXT NOT NULL,
  "status"      INTEGER,
  "error"       TEXT,
  "submittedAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
  CONSTRAINT "IndexNowSubmission_pkey" PRIMARY KEY ("id")
);
CREATE INDEX "IndexNowSubmission_submittedAt_idx" ON "IndexNowSubmission"("submittedAt");
CREATE INDEX "IndexNowSubmission_engine_submittedAt_idx" ON "IndexNowSubmission"("engine", "submittedAt");
CREATE INDEX "IndexNowSubmission_url_idx" ON "IndexNowSubmission"("url");