using Api.SeaHavenIndustries.DTOs;
using Data.SeaHavenIndustries;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;

[ApiController]
[Route("api/FollowUp")]
public class FollowUpController : ControllerBase
{
    private readonly ApplicationDbContext _db;

    public FollowUpController(ApplicationDbContext db)
    {
        _db = db;
    }

    [HttpGet("GetFollowUpList")]
    public IActionResult GetFollowUps(
        string? search = "",
        bool completed = false,
        int page = 1,
        int pageSize = 12)
    {
        var status = completed ? "Completed" : "Open";

        var query = _db.FollowUps
            .Include(x => x.Employee)
            .Include(x => x.Account)
            .Include(x => x.Location)
            .Include(x => x.WorkOrder)
            .Where(x => x.Status == status);

        if (!string.IsNullOrWhiteSpace(search))
        {
            search = search.ToLower();

            query = query.Where(x =>
                (x.Reason ?? "").ToLower().Contains(search) ||
                (x.Account != null && (x.Account.Name ?? "").ToLower().Contains(search)) ||
                (x.Employee != null &&
                    (
                        ((x.Employee.FirstName ?? "") + " " + (x.Employee.LastName ?? ""))
                            .ToLower()
                            .Contains(search)
                    )
                )
            );
        }

        var totalCount = query.Count();

        var data = query
            .OrderByDescending(x => x.Id)
            .Skip((page - 1) * pageSize)
            .Take(pageSize)
            .Select(x => new
            {
                x.Id,
                x.Reason,
                x.ScheduleDate,
                Account = x.Account != null ? x.Account.Name : "",
                AssignedTo = x.Employee != null
                    ? (x.Employee.FirstName + " " + x.Employee.LastName)
                    : "",
                LocationName = x.Location != null ? x.Location.Name : "",
                WorkOrderNumber = x.WorkOrder != null ? x.WorkOrder.WorkerOrderNumber : "",
                x.Status
            })
            .ToList();

        return Ok(new Pagination_DTO
        {
            Data = data,
            PageNumber = page,
            PageSize = pageSize,
            TotalCount = totalCount,
            TotalPages = (int)Math.Ceiling(totalCount / (double)pageSize)
        });
    }


    [HttpPost("Create")]
    public async Task<IActionResult> Create(FollowUp_DTO dto)
    {
        var model = new FollowUps
        {
            Reason = dto.Reason,
            ScheduleDate = dto.ScheduleDate,
            ScheduleStartTime = dto.ScheduleStartTime,
            EmployeeId = dto.EmployeeId,
            WorkOrderId = dto.WorkOrderId,
            AccountId = dto.AccountId,
            LocationId = dto.LocationId,
            Status = "Open",
            CreatedDate = DateTime.UtcNow
        };

        _db.FollowUps.Add(model);
        await _db.SaveChangesAsync();

        return Ok(new DataResponse { Status = "200", Message = "Follow Up created" });
    }

    [HttpPost("Update")]
    public async Task<IActionResult> Update(FollowUp_DTO dto)
    {
        var model = await _db.FollowUps.FindAsync(dto.Id);
        if (model == null) return NotFound();

        model.Reason = dto.Reason;
        model.ScheduleDate = dto.ScheduleDate;
        model.ScheduleStartTime = dto.ScheduleStartTime;
        model.EmployeeId = dto.EmployeeId;
        model.WorkOrderId = dto.WorkOrderId;
        model.AccountId = dto.AccountId;
        model.LocationId = dto.LocationId;
        model.LastModificationTime = DateTime.UtcNow;

        await _db.SaveChangesAsync();
        return Ok(new DataResponse { Status = "200", Message = "Follow Up updated" });
    }

    [HttpPost("Complete")]
    public async Task<IActionResult> Complete(int id)
    {
        var model = await _db.FollowUps.FindAsync(id);
        if (model == null) return NotFound();

        model.Status = "Completed";
        model.LastModificationTime = DateTime.UtcNow;
        await _db.SaveChangesAsync();

        return Ok();
    }

    [HttpPost("Cancel")]
    public async Task<IActionResult> Cancel(int id)
    {
        var model = await _db.FollowUps.FindAsync(id);
        if (model == null) return NotFound();

        model.Status = "Cancelled";
        model.LastModificationTime = DateTime.UtcNow;
        await _db.SaveChangesAsync();

        return Ok();
    }
}