-- Migration: Create video_interviews table
-- Description: Table for scheduling and managing video interviews between companies and candidates

CREATE TABLE IF NOT EXISTS video_interviews (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    application_id UUID NOT NULL REFERENCES applications(id) ON DELETE CASCADE,
    
    -- Interview scheduling
    scheduled_at TIMESTAMP WITH TIME ZONE NOT NULL,
    duration_minutes INTEGER NOT NULL DEFAULT 30,
    timezone VARCHAR(50) NOT NULL DEFAULT 'UTC',
    
    -- Interview details
    meeting_link VARCHAR(500),
    meeting_provider VARCHAR(50) DEFAULT 'custom', -- custom, zoom, meet, teams
    meeting_id VARCHAR(255),
    meeting_password VARCHAR(100),
    
    -- Status
    status VARCHAR(30) NOT NULL DEFAULT 'scheduled', -- scheduled, in_progress, completed, cancelled, no_show
    started_at TIMESTAMP WITH TIME ZONE,
    ended_at TIMESTAMP WITH TIME ZONE,
    
    -- Notes and feedback
    notes TEXT,
    interviewer_feedback TEXT,
    candidate_feedback TEXT,
    rating INTEGER, -- 1-5 rating
    
    -- Metadata
    created_by UUID REFERENCES users(id),
    created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
    updated_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW()
);

-- Indexes
CREATE INDEX IF NOT EXISTS idx_video_interviews_application_id ON video_interviews(application_id);
CREATE INDEX IF NOT EXISTS idx_video_interviews_scheduled_at ON video_interviews(scheduled_at);
CREATE INDEX IF NOT EXISTS idx_video_interviews_status ON video_interviews(status);

-- Comments
COMMENT ON TABLE video_interviews IS 'Video interview scheduling for job applications';
COMMENT ON COLUMN video_interviews.application_id IS 'The job application this interview is for';
COMMENT ON COLUMN video_interviews.scheduled_at IS 'When the interview is scheduled to start';
COMMENT ON COLUMN video_interviews.duration_minutes IS 'Interview duration in minutes';
COMMENT ON COLUMN video_interviews.meeting_link IS 'URL to join the video meeting';
COMMENT ON COLUMN video_interviews.meeting_provider IS 'Video meeting provider: custom, zoom, google_meet, teams';
COMMENT ON COLUMN video_interviews.status IS 'Interview status: scheduled, in_progress, completed, cancelled, no_show';