using System;
using Microsoft.EntityFrameworkCore.Migrations;

#nullable disable

namespace CvMatcher.Data.Migrations
{
    /// <inheritdoc />
    public partial class InitialSchema : Migration
    {
        /// <inheritdoc />
        protected override void Up(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.EnsureSchema(
                name: "cvMatcher");

            migrationBuilder.CreateTable(
                name: "AiPrompts",
                schema: "cvMatcher",
                columns: table => new
                {
                    Key = table.Column<string>(type: "nvarchar(128)", maxLength: 128, nullable: false),
                    Language = table.Column<string>(type: "nvarchar(8)", maxLength: 8, nullable: false),
                    Value = table.Column<string>(type: "nvarchar(max)", nullable: false),
                    Description = table.Column<string>(type: "nvarchar(500)", maxLength: 500, nullable: false, defaultValue: ""),
                    UpdatedAt = table.Column<DateTime>(type: "datetime2", nullable: false, defaultValueSql: "SYSUTCDATETIME()")
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_AiPrompts", x => new { x.Key, x.Language });
                });

            migrationBuilder.CreateTable(
                name: "ChatCache",
                schema: "cvMatcher",
                columns: table => new
                {
                    CacheKey = table.Column<string>(type: "nvarchar(64)", maxLength: 64, nullable: false),
                    Model = table.Column<string>(type: "nvarchar(120)", maxLength: 120, nullable: false),
                    Temperature = table.Column<decimal>(type: "decimal(4,2)", nullable: false),
                    ResponseText = table.Column<string>(type: "nvarchar(max)", nullable: false),
                    CreatedAt = table.Column<DateTime>(type: "datetime2", nullable: false, defaultValueSql: "SYSUTCDATETIME()")
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_ChatCache", x => x.CacheKey);
                });

            migrationBuilder.CreateTable(
                name: "Results",
                schema: "cvMatcher",
                columns: table => new
                {
                    Id = table.Column<string>(type: "nvarchar(64)", maxLength: 64, nullable: false),
                    CvDocumentId = table.Column<string>(type: "nvarchar(64)", maxLength: 64, nullable: false),
                    JobDocumentId = table.Column<string>(type: "nvarchar(64)", maxLength: 64, nullable: false),
                    Language = table.Column<string>(type: "nvarchar(450)", nullable: false),
                    ResultJson = table.Column<string>(type: "nvarchar(max)", nullable: false),
                    Score = table.Column<int>(type: "int", nullable: false),
                    CreatedAt = table.Column<DateTime>(type: "datetime2", nullable: false, defaultValueSql: "SYSUTCDATETIME()")
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_Results", x => x.Id);
                });

            migrationBuilder.CreateIndex(
                name: "IX_Results_CvDocumentId_JobDocumentId_Language",
                schema: "cvMatcher",
                table: "Results",
                columns: new[] { "CvDocumentId", "JobDocumentId", "Language" },
                unique: true);

            // Seed AI prompts for CV matching (language-specific)
            migrationBuilder.Sql(@"
INSERT INTO [cvMatcher].AiPrompts ([Key], [Language], [Value], [Description]) VALUES
('ai.cv-match.system-prompt', 'en', 'You are a strict CV-to-job matching engine. Return JSON only. Score realistically from 0 to 100. Penalize missing required skills. Do not invent experience. Use concise business language. All text fields in the JSON response must be in English.
JSON shape: {""score"":number,""summary"":""one-line summary in English"",""strengths"":[""strength 1 in English"",""strength 2 in English""],""gaps"":[""gap 1 in English""],""recommendations"":[""recommendation 1 in English""],""evidence"":[""evidence 1 in English""]}', 'System prompt for CV-to-job matching in English. Instructs LLM to return JSON with CV strengths, gaps, and recommendations relative to the job.'),
('ai.cv-match.system-prompt', 'ro', 'Ești un motor strict de potrivire CV-job. Returnează doar JSON. Punctează realist între 0 și 100. Penalizează abilitățile lipsă necesare. Nu inventa experiență. Folosește limbaj profesional concis. Toate câmpurile text din răspunsul JSON trebuie să fie în limba română.
JSON shape: {""score"":number,""summary"":""rezumat pe o linie în română"",""strengths"":[""punct forte 1 în română"",""punct forte 2 în română""],""gaps"":[""lipsă 1 în română""],""recommendations"":[""recomandare 1 în română""],""evidence"":[""dovadă 1 în română""]}', 'System prompt pentru potrivire CV-job în limba română. Instruiește LLM-ul să returneze JSON cu punctele forte ale CV-ului, lacunele și recomandări relative la job.');
            ");
        }

        /// <inheritdoc />
        protected override void Down(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.DropTable(
                name: "AiPrompts",
                schema: "cvMatcher");

            migrationBuilder.DropTable(
                name: "ChatCache",
                schema: "cvMatcher");

            migrationBuilder.DropTable(
                name: "Results",
                schema: "cvMatcher");
        }
    }
}