using F9MES.Application.Print;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;

namespace F9MES.Api.Controllers;

/// <summary>
/// 打印对接接口（OpenPrint 后端契约，见 openprint/src/repository/*）
/// 注意：与 F9 其它接口不同，此处返回【裸 JSON】而非 ApiResult 信封：
///   - 列表：{ items, total }
///   - 详情/创建/更新：资源对象
///   - 删除：204 无 body
///   - 错误：{ code, message, detail, requestId }
/// 鉴权复用 F9 的 JWT（openprint 侧自动注入 Authorization: Bearer {token}）。
/// </summary>
[ApiController]
[Authorize]
[Route("api/print")]
public class PrintApiController : ControllerBase
{
    private readonly PrintService _print;

    public PrintApiController(PrintService print)
    {
        _print = print;
    }

    // ==================== 模板 ====================

    /// <summary>模板列表（不含 content）</summary>
    [HttpGet("templates")]
    public async Task<IActionResult> GetTemplates()
    {
        var (items, total) = await _print.ListTemplatesAsync();
        return Ok(new { items, total });
    }

    /// <summary>模板详情（含 content，TemplateJSON 字符串）</summary>
    [HttpGet("templates/{id}")]
    public async Task<IActionResult> GetTemplate(string id)
    {
        var row = await _print.GetTemplateAsync(id);
        if (row == null) return Err(StatusCodes.Status404NotFound, "模板不存在", $"id={id}");
        return Ok(row);
    }

    /// <summary>创建模板（201 + 含真实 id 的资源）</summary>
    [HttpPost("templates")]
    public async Task<IActionResult> CreateTemplate([FromBody] PrintTemplateInput input)
    {
        if (input == null || string.IsNullOrWhiteSpace(input.Name))
            return Err(StatusCodes.Status400BadRequest, "模板名称不能为空");
        var row = await _print.CreateTemplateAsync(input);
        return StatusCode(StatusCodes.Status201Created, row);
    }

    /// <summary>更新模板（部分字段；openprint 发 name 和/或 content）</summary>
    [HttpPut("templates/{id}")]
    public async Task<IActionResult> UpdateTemplate(string id, [FromBody] PrintTemplateInput input)
    {
        if (input == null)
            return Err(StatusCodes.Status400BadRequest, "请求体不能为空");
        var row = await _print.UpdateTemplateAsync(id, input);
        if (row == null) return Err(StatusCodes.Status404NotFound, "模板不存在", $"id={id}");
        return Ok(row);
    }

    /// <summary>物理删除模板（204 无 body）</summary>
    [HttpDelete("templates/{id}")]
    public async Task<IActionResult> DeleteTemplate(string id)
    {
        var ok = await _print.DeleteTemplateAsync(id);
        if (!ok) return Err(StatusCodes.Status404NotFound, "模板不存在", $"id={id}");
        return NoContent();
    }

    // ==================== 数据源 ====================

    /// <summary>数据源列表（含子表层级 tables）</summary>
    [HttpGet("data-sources")]
    public IActionResult GetDataSources()
    {
        var items = _print.ListDataSources();
        return Ok(new { items, total = items.Count });
    }

    /// <summary>数据源字段定义</summary>
    [HttpGet("data-sources/{id}/fields")]
    public IActionResult GetFields(string id)
    {
        var items = _print.ListFields(id);
        return Ok(new { items, total = items.Count });
    }

    /// <summary>统一错误信封：{ code, message, detail, requestId }</summary>
    private IActionResult Err(int status, string message, string? detail = null)
    {
        return new JsonResult(new
        {
            code = status,
            message,
            detail,
            requestId = HttpContext.TraceIdentifier,
        })
        { StatusCode = status };
    }
}