-- Add ownerId column to tasks table if it doesn't exist
ALTER TABLE "tasks" ADD COLUMN "ownerId" TEXT;

-- Create a temporary user if no users exist
INSERT OR IGNORE INTO "users" ("id", "email", "name", "password", "createdAt", "updatedAt") 
VALUES ('temp-user', 'temp@example.com', 'Temporary User', '$2b$10$temp', CURRENT_TIMESTAMP, CURRENT_TIMESTAMP);

-- Assign all existing tasks to the first user (or temp user if none exist)
UPDATE "tasks" 
SET "ownerId" = (
    SELECT "id" FROM "users" 
    ORDER BY "createdAt" ASC 
    LIMIT 1
)
WHERE "ownerId" IS NULL;

-- Now make ownerId NOT NULL by recreating the table
CREATE TABLE "tasks_new" (
    "id" TEXT NOT NULL PRIMARY KEY,
    "title" TEXT NOT NULL,
    "description" TEXT,
    "status" TEXT NOT NULL DEFAULT 'todo',
    "priority" TEXT NOT NULL DEFAULT 'medium',
    "source" TEXT NOT NULL,
    "sourceId" TEXT,
    "dueDate" DATETIME,
    "completedAt" DATETIME,
    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "updatedAt" DATETIME NOT NULL,
    "jiraProject" TEXT,
    "jiraKey" TEXT,
    "assignee" TEXT,
    "ownerId" TEXT NOT NULL,
    "jiraType" TEXT,
    "tfsProject" TEXT,
    "tfsPullRequestId" INTEGER,
    "tfsRepository" TEXT,
    "tfsSourceBranch" TEXT,
    "tfsTargetBranch" TEXT,
    "primaryTagId" TEXT,
    CONSTRAINT "tasks_ownerId_fkey" FOREIGN KEY ("ownerId") REFERENCES "users" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
    CONSTRAINT "tasks_primaryTagId_fkey" FOREIGN KEY ("primaryTagId") REFERENCES "tags" ("id") ON DELETE SET NULL ON UPDATE CASCADE
);

-- Copy data from old table to new table
INSERT INTO "tasks_new" SELECT * FROM "tasks";

-- Drop old table
DROP TABLE "tasks";

-- Rename new table
ALTER TABLE "tasks_new" RENAME TO "tasks";

-- Recreate indexes
CREATE UNIQUE INDEX "tasks_source_sourceId_key" ON "tasks"("source", "sourceId");
CREATE INDEX "tasks_ownerId_idx" ON "tasks"("ownerId");